In photonic crystals, nanophotonics, negative refraction media, surface plasma optics, nonlinear optics and quantum optics, he has made many innovative achievements in theoretical and experimental research on electromaanetic field problems.

K2realm Extensions is a plug-in that integrates with clients’ current installation of Code V Optical Design Software. Optical design tasks can be improved, alongside lens design workflow. Additional features include quick model changes, faster tolerancing run times and improved data visualisation within the optimisation dashboard

Luceda Photonics aims to enable photonic IC designers to enjoy the same power as electronic IC designers. The company automates and integrate the complete photonic design flow. Its IPKISS Python-based platform enables design teams to easily share and reuse their photonic design IP using a standard language.

Phase-matching in Type II cut crystals can lead to efficient second-harmonic generation, sum-frequency generation, and difference-frequency generation. These processes find wide applications in laser technology, where efficient frequency mixing is paramount.

The cut type of a BBO crystal determines its phase-matching properties. Phase-matching refers to the alignment of the refractive index for different wavelengths, ensuring efficient light conversion. There are two primary cut types – Type I and Type II.

In Type II cut BBO crystals, the crystal is oriented in such a way that the interacting photons have perpendicular polarization directions. This contrasts with Type I cut, where all photons align in the same polarization direction. As a result, in Type II cut, we deal with an extraordinary wave and an ordinary wave, leading to different polarization characteristics.

Design Workshop Technologies creates computer aided design software for the microelectronics, MEMS and photonics industries, and for other microfabrication applications. Its flagship suite of products is dw-2000, which enables the physical layout and verification of optical components built using planar waveguide technology and other semiconductor manufacturing techniques.

However, satisfying this phase-matching condition is not always straightforward. It often requires precise adjustments of the phase-matching angle and temperature. This sensitivity to changes underscores the importance of careful handling and setup in applications using Type I cut BBO crystals.

The challenge in achieving Type II phase-matching lies in the complexity of matching the refractive indices of the ordinary and extraordinary waves. The refractive index of an extraordinary wave is dependent on the direction of propagation and polarization, making it sensitive to the cut angle. On the other hand, the refractive index of an ordinary wave is constant for all directions of propagation. Hence, precise control over the crystal’s cut angle is critical in achieving phase-matching in Type II cut crystals.

Optics simulation and design software from HMS Technology Sales is typically used by optical engineers who also have ray tracing software, such as Zemax and Code V. For applications with feature sizes approaching, and smaller than, the wavelength, we offer software that extends your modelling beyond ray tracing to accurately model diffraction, interference, polarisation, wavefront aberrations and partial coherence. Applications include metalenses, DOEs, beam shaping, CGHs, high NA focusing and beam splitting, gratings, AR/VR, HUD, microlens arrays, fibre coupling, interferometers, spectrometers, ultrashort pulse propagation, pulse stretching and compression and solid-state laser design.

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While Type I cut BBO crystals have been well-documented, Type II cut BBO crystals – also known as eoe (extraordinary-ordinary-extraordinary) type phase-matching – hold an equally significant place in the realm of photonics. By examining the complexities of Type II cut and its unique phase-matching conditions, we gain a holistic view of the operational dynamics of BBO crystals and their pivotal role in various applications.

Polaris-M is an optical design and polarisation analysis programme from Airy Optics. The tool joins ray tracing-based optical design methods with polarisation calculus, 3D simulation, anisotropic materials, diffractive optic simulation, stress birefringence and diffraction theory. It was developed at the Polarization Laboratory at the University of Arizona over the last 10 years and licensed in 2016 to Airy Optics. More than 500 functions are included, such as ray tracing, aberration calculation, polarisation elements, stress birefringence, diffractive optical elements, polarisation ray tracing calculus, and liquid crystal cells and optical elements.

Excelitas Technologies offers Linos WinLens Software to streamline optical design utilising the extensive offering of Linos optical elements and components. WinLens is a powerful and intuitive simulation program for designing optical imaging systems. Originating from the Qioptiq heritage, Excelitas offers complimentary versions of WinLens Basic and WinLens Predesigner, for optical education and rudimentary optical design, as well as the full capabilities of WinLens 3D offering a range of software plug-in modules, including Material Editor, Glass Manager and Optical Tolerancer to enable even more advanced optical design.

Type I cut BBO crystals excel in applications that involve frequency doubling and optical parametric oscillation due to their high conversion efficiency. Additionally, they are used in electro-optic modulation applications, thanks to their superior electro-optic coefficients.

To elaborate, when the refractive indices of the interacting waves are equal, it means the waves travel through the crystal at the same velocity. This equality of velocities allows the waves to maintain their phase relationship throughout the interaction, leading to a build-up of the output wave, thus enhancing the conversion efficiency.

Type II cut BBO crystals are often used in second-harmonic generation (SHG), sum-frequency generation (SFG), and difference-frequency generation processes due to their efficient frequency mixing abilities. They’re also employed in optical parametric oscillation applications, especially when a wide tuning range is required.

Home - Posts - Understanding and Choosing the Right BBO Crystal Cut Type: An In-depth Guide to Type I and Type II Cuts for Optimal Photonics Performance

532nm laser 1300nm laser 1500nm laser 1064nm laser 1064/532nm laser 2000nm laser(Tm:YAG) 2000nm laser(Tm:YLF) 2100nm laser(Ho:YAG) 2100nm laser(Cr,Tm,Ho:YAG) 2790nm laser 2940nm laser

I am Ben Fang, the CEO of laser-crylink.com, me and my team would be happy to meet you and learn all about your business, requirements and expectations.

BeamWise is a set of software tools and services for the design of biophotonic and other complex optical systems. It is implemented using Design++, a knowledge-based engineering platform that simplifies the capture of in-house engineering expertise and streamlines integration of legacy systems into design automation and product configuration solutions. It has a component library that augments AutoCAD or SolidWorks to make sure the alignment is maintained as design changes are rippled through the beam path.

But why does this variation matter? To comprehend this, we need to consider the phase-matching condition for Type II cut. In Type II phase-matching, the refractive indices of the ordinary and extraordinary waves are made equal. Achieving this condition allows both types of waves, despite having perpendicular polarization, to propagate at the same velocity through the crystal. This equality of velocities helps maintain the phase relationship between the waves, leading to efficient energy exchange and thereby resulting in effective frequency conversion or mixing processes.

But what causes this parallel alignment of the electric fields of photons in Type I cut crystals? This phenomenon is tied to the concept of phase-matching. Phase-matching is a condition that needs to be satisfied for the effective interaction of light waves in non-linear optical processes.

How to Build Better Optical Designs with Synopsys Software: Synopsys provides design tools that model all aspects of light propagation for high-accuracy optical product simulations and visualisations. With intelligent, easy-to-use solutions and an expert support team anchored by optical engineers, Synopsys helps organisations deliver superior optics to market faster.

Photon Engineering is a consulting and software development firm that specialises in all phases of optical engineering: design, analysis and implementation. The company’s Fred optical engineering software simulates the propagation of light through any opto-mechanical system by ray tracing. Whether a design is imported from CAD, a lens design program, or constructed from within the software, Fred provides engineers with a solution for virtual prototyping of optical systems.

This is not an exhaustive list. If you provide optical design software or related products space and would like your company to be included, please let us know at: editor.electro@europascience.com

In Type I cut BBO crystals, the crystal’s orientation is such that all photons participating in the non-linear process align in the same polarization direction. It’s crucial to remember that polarization refers to the orientation of the electric field of a light wave. So, in this case, the electric fields of all interacting photons add up constructively due to their same direction, increasing the conversion efficiency. This alignment makes Type I cut ideal for processes involving frequency conversion, where the conversion efficiency is a priority.

Understanding the different cut types of BBO crystals and their corresponding phase-matching conditions is vital for optimizing their performance in various applications. These cut types primarily include Type I and Type II cuts, each having distinct phase-matching conditions.

ELE Optics provides cloud-based optical software solutions built by optical engineers, for optical engineers. The software allows for optical project collaboration, version control and deep insights.

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Vendors of optical design software and related products include 3DOptix, which offers free online optical design software. Free to download at the company’s website, the tool allows users to build an optical set-up, use off-the-shelf optical elements or create customised ones and choose different off-the-shelf opto-mechanical parts or import a customised part. With the software, users are also able to run geometrical or ray optics simulation and analyse the design, measure distance and analyse the spectrum.

Optiwave Systems is a developer of software tools for the design, simulation and optimisation of components, links, systems and networks for the dynamically growing fields in photonics nanotechnology, optoelectronics, optical networks and other photonic applications. Its software has been licensed to more than 1,000 corporations and universities in over 70 countries worldwide.

Some of the drivers behind the widespread use of optical design software include demand within the photonics sector, of course, but also in aerospace, where higher quality modelling and analysis of optical systems are vital, likewise the boom in cloud and edge computing and smart consumer technology.

Crosslight Software is an expert in TCAD (technology computer aided design) simulation tools headquartered in Vancouver, Canada. For almost 20 years, the company has been dedicated to providing state-of-the-art TCAD simulation tools for semiconductor devices and processes. It has three device simulation software packages (Apsys, Lastip and Pics3D), and device models cover a full range of devices, from basic silicon MOSFET to more complex devices such as vertical cavity surface emitting laser (VCSEL) and quantum cascade laser (QCL). Crosslight also developed Procom, a 2D/3D simulator to model semiconductor growth by metal-organic chemical vapour deposition (MOCVD), a technology commonly used to grow compound semiconductors.

Making the choice, therefore, revolves around the precise requirements of your application. If high conversion efficiency is paramount, a Type I cut may be the best fit. However, if your application involves complex frequency mixing processes, Type II could potentially offer a superior performance.

Deciding between Type I and Type II cut BBO crystals is a critical step that can significantly influence the performance and efficiency of your photonic application. It’s not a simple black-and-white decision, but one that requires careful consideration of your specific needs, technical specifications, and the precise goals you aim to achieve.

In the context of Type I cut, phase-matching is achieved by aligning the optical axis with the direction of light propagation. It involves cutting the crystal at a specific angle, known as the phase-matching angle (θ), relative to the optical axis. This angle is not arbitrarily chosen; instead, it’s meticulously selected to ensure the refractive indices of the interacting waves match each other.

In choosing between Type I and Type II cut BBO crystals, you need to consider the specific needs of your application. If high conversion efficiency is a priority, a Type I cut may be more suitable. However, if your application involves frequency mixing processes, a Type II cut might be the better choice. Consulting with an experienced photonics professional can also provide valuable guidance in making this critical decision.

BeamXpert’s Designer software simulates the propagation of laser radiation through optical systems in real time, offers intuitive operation with CAD-like 3D representation and speaks the language of laser technology. It uses two modelling approaches. The first uses the propagation of the first and second order moments of the intensity distributions for simulation. A proprietary approach allows a less restrictive application of the paraxial approximation. Since the calculation is very fast, the simulation can be performed in real time. In the second model, the laser radiation is represented by a bundle of geometrical-optical beams propagated through the system using classical ray tracing.

LightTrans International develops and offers fast physical-optics software for optical systems that comprise macro-, micro-, and nano-structured components. By connecting a variety of propagation techniques, LightTrans provides physical optics modelling with high speed, which enables the analysis and design of optical systems beyond ray tracing. VirtualLab Fusion provides a platform for connecting inbuilt and customised electromagnetic field solvers. This approach is designed to enable fast physical optics with ray tracing embedded in a well-defined way.

In essence, Type II cut BBO crystals, with their distinctive phase-matching condition, open up a world of possibilities in non-linear optics. Understanding their phase-matching dynamics and leveraging them can revolutionize photonic applications, from laser technology to optical communication. This comprehension of Type II cut and its phase-matching condition brings us one step closer to harnessing the full potential of BBO crystals in our stride towards advancing photonic technology.

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BBOrefractive index

Synopsys provides design tools that model all aspects of light propagation. For metalens design made easier, the RSoft Photonic Device Tools provide the most comprehensive set of optical solvers to design photonic devices and systems. The latest release expands the platform’s capabilities for automated metalens design as well as multi-physics simulations for optoelectronic devices and illumination systems. Find out more.

Sciopt Enterprises offers a range of software products for design and analysis of nanoscale optical and laser systems. The company develops and offers Paraxia-Plus-10 software tools for laser system design on Windows-based computers. The software allows for the study of laser resonator characteristics or laser beam interactions with components outside the resonator, or both.

Type I and Type II cuts in BBO crystals have unique properties that lend themselves to distinct applications. For instance, Type I cut, with all photons having the same polarization direction, is renowned for its high conversion efficiency, making it an excellent choice for applications involving frequency conversion or modulation. However, it’s crucial to note that the high efficiency is directly tied to meeting the phase-matching condition, which requires precise alignment of the optical axis with the propagation direction.

Breault Research Organization’s experience and capabilities in optical engineering led to the optical analysis and design software suite, which includes the Asap Optical Performance Prediction Engine, Apex Predictive Optical Analysis Solidworks Integration, and ReflectorCAD Optical Reflector Design Platform. The Apex add-in for the SolidWorks 3D-modelling environment is based on the Asap ray tracing engine, and enables the design and analysis of optical and illumination systems using an easy-to-follow workflow. Asap can accurately predict the real-world performance of virtually any optical system. ReflectorCAD is a reflector design tool that allows graphical adjustments to the luminous intensity pattern corresponding to individual reflector segments.

Besides the application, factors such as operating wavelength, power handling, temperature stability, and even budget could influence your choice. It’s also essential to remember that perfect phase-matching is an ideal condition. In reality, slight deviations from the phase-matching condition can occur, which can affect the efficiency of the non-linear process.

BBO crystals are renowned for their high nonlinear coefficient and broad phase-matching range. However, the benefits and applications of these crystals largely depend on the cut type chosen. This guide will aid you in selecting the most suitable cut type based on your specific needs.

Lambda Research Corporation provides software tools for optical and illumination design. Amongst the company’s products is the TracePro opto-mechanical software, which is popular for its ease of use, CAD interface and accuracy in illumination design. Meanwhile, its Oslo optical design software is known for its power and flexibility in lens design. RayViz is a ray-tracing add-in for Solidworks.

Beta-Barium Borate (BBO) Crystals are prominent in the world of photonics. Their optical properties make them essential in several applications, such as frequency conversion, electro-optical applications, and optical parametric oscillation. Crucial to their performance is the crystal cut type – Type I and Type II. Choosing the right cut type for your application can significantly impact performance and efficiency.

It provides the benefit of a reduction in the trial and error process, giving fast, accurate assistance to users. The additional benefit here is a saving in time and money, increased productivity and, arguably, higher optical design quality. In addition, designs can be saved and reused or adapted for future use.

In summary, understanding the differences between Type I and Type II BBO Crystal cuts is vital for their effective application. Each cut type has its unique phase-matching conditions, advantages, and suitable applications. It’s crucial to consider these factors when selecting the appropriate crystalcut type for your specific needs.

Second harmonic generation

On the other hand, Type II cut, where the photons have perpendicular polarization, excels in applications involving frequency mixing, such as second-harmonic generation, sum-frequency generation, and difference-frequency generation. Despite having a slightly lower damage threshold than Type I, Type II cuts have excellent properties for frequency mixing due to the unique phase-matching condition.

AEH provides software solutions for design and analysis of metrology, optical instruments and fine mechanics. Its three proprietary software tools are: Ivory, for managing mechanics of images; Ebony, for managing mechanical aberrations; and Jade, for managing mechanics of brittle fractures.

Type I cut BBO crystals offer several benefits. One significant advantage is their high conversion efficiency, which is due to the alignment of the polarization of all interacting photons. They also have a broad transparency range and a high damage threshold, which makes them ideal for high-power applications.

FTG Software Associates provides the FilmStar Optical Thin Film Software, a suite of Windows programs for designing, manufacturing and measuring optical coatings. Coatings are applied to glass and other surfaces by high vacuum deposition. Its Scantraq is a stand-alone version of FilmStar Measure, marketed to chemists and spectroscopists and supporting UV/Vis/IR data acquisition and analysis from current and legacy PerkinElmer and other models.

Thus, making an informed choice between Type I and Type II cuts requires a comprehensive understanding of the application’s needs, the fundamental properties of each cut, and the implications of the phase-matching conditions. Additionally, seeking expert advice can help steer the decision-making process towards the best fit for your specific needs.

Optical designers can start with a suitable design or idea, based on what they want to achieve and their own experience and expertise, and the software can be used to analyse and optimise this idea, to ensure the required performance can be achieved.

Type II cut BBO crystals, on the other hand, have unique phase-matching properties that allow efficient frequency mixing. This is because their cut leads to photons with perpendicular polarization. Although they have a slightly lower damage threshold compared to Type I crystals, they still boast a high damage threshold, suitable for various applications.

PlanOpsim’s software is designed to provide a start-to-finish workflow for the design of meta-lenses and other meta-surfaces. To design meta-surfaces, the software simulates both the tiny nano-structures and larger components made of millions of nano-structures. The software applies a multi-scale optical model to simulate these components effectively. The sub-wavelength meta-atoms are modelled with a full wave solution to Maxwell equations and the component scale simulation is calculated using efficient propagation optics.

Praxis Optics offers contract optical design, analysis and programming services. Its optical systems are used for commercial, defence and biomedical applications. The company can design and provide manufacturability analysis of optical systems using conventional components and aspherics. The optical system can be modelled as it propagates through atmospheric turbulence, including time-dependent fluctuations. The company can also provide scientific programming and analysis services using common analysis packages and C++ programming.

Optical design software is used to help optical system designers develop the right configuration of optical elements that manipulate the path of light for their individual optical system or instrument.

Photon Design was started more than 30 years ago to provide professional quality software to the photonics industry. It has introduced many innovations to photonics modelling, and now provides tools for the modelling of active and passive photonics components and circuits. Its products are now in use in more than 30 countries, hundreds of research labs and it has contributed to thousands of research publications.

CODE V, LightTools, RSoft Photonic Device Tools, and the LucidShape products help designers to create any optical product – from macro- to nano-scale optics. Develop a broad range of optical systems with unparalleled speed and accuracy, such as augmented reality headsets, head-up displays, smartphone optics, automotive lighting, and electro-optical imaging systems.

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VPIphotonics offers simulation software and design services that can support the requirements of photonic integrated circuits, semiconductor laser- and fibre-based component applications, optical system and network applications, and optical equipment configuration.

Type I cut in BBO crystals, also known as ooe (ordinary-ordinary-extraordinary) type phase-matching, serves a fundamental role in enhancing the efficiency and effectiveness of photonics applications. As you delve deeper into its concept and mechanism, you will gain a better understanding of how it influences light propagation and transformation processes within the crystal.

Zemax develops software to help improve the speed and accuracy of optical product design by enabling engineering teams to simulate how light travels through the complete opto mechanical system before building a physical prototype. The company also offers online training courses.

Lumerical’s Device suite of component-level simulation products uses multi-physics-style simulation workflows to model optical, electrical and thermal effects at the physical level. The company’s system suite of system-level simulation products is designed to offer a rich set of analysis capabilities to design and optimise the performance of photonic integrated circuits.