When you place two plane mirrors at a 90-degree angle, the image of the first mirror is reflected in the second mirror so that the reversed mirror image is ...

Housing Options. The APDs are available in different TO-housings with certain options such as lens cap, integrated filter, with TEC, SMD housing, or just on ceramic submount. In addition to a wide range of standard products our strength clearly is in customer specific developments.

The images, colours and finishes on screen are approximate. For the real representation of the product always check the sample or the colours folder.

Edmund Opticsphotodiode

Specifically selected APDs can be used for photon counting in Geiger mode (VR > VBR), where a single photon triggers an avalanche impulse of approximately 108 charge carriers.

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Silicon avalanche photodiodes are used in the wavelength range from the UV to the near infrared. LASER COMPONENTS manufactures different series: highest quality for demanding systems, over customized version to components made for consumer products.

The SAE series features an epitaxial structure and is available as red enhanced (i.e. optimized for visible wavelengths) or NIR enhanced (i.e. optimized for NIR wavelengths) version. These APDs are inexpensive and feature a very large gain and dynamic range.

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The images, colours and finishes on screen are approximate. For the real representation of the product always check the sample or the colours folder.

Since the foundation of LASER COMPONENTS Detector Group, Inc. in 2004 we have built a product range comprising high quality APDs as well as low cost versions. The active area of our Silicon Avalanche Photodiodes ranges from diameters of 230 µm to 3.0 mm.

Si APDs are used in the wavelength range from 250 to 1100 nm, and InGaAs is used as semiconductor material in APDs for the wavelength range from 1100 to 1700 nm.

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The detector material of the APD has great influence on range measurement reliability. Depending on the demands for maximal range, resolution and eye-saftey, designers have the choice between III-V compounds such as InGaAs- or Silicon-based APDs - both with their distinctive set of advantages and disadvantages.

Applications. Depending on type and specifications APDs are used for rangefinding, speed measurements, laser radar, security scanners, spectroscopy, fluorescence measurement as well as test and measurements systems in industrial, military, and medical markets. The avalanche effect is most effective whenever there is not much light available.

In the time-of-flight method, a 905 nm pulsed laser diode emits a laser pulse that reflects off an object and is focussed through an optic onto an APD chip. In order to achieve an optimal signal-to-noise ratio, an external band-pass filter that blocks the surrounding light has to be mounted in front of the APD or the optic.

The A-mode (Aperture Priority mode) is a mode that allows you to set the f-number the way you want. In this mode, the camera automatically sets the shutter ...

Low cost APDs in a miniature SMD packages. Responsitivity is optimized for 850 nm and 905 nm rangefinders. Optional, the SAHA series is also available with 905 nm bandpass filter.

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InGaAsphotodiode

The SAR series is based on a reach-through structure with a high sensitivity across the entire spectral range from 400 nm to 1100 nm. At the same time, rise and fall times are extremely fast (typically 450 ps). These APDs feature extremely low noise low dark current.

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A cast, matte, white translucent film (80 µm) with a clear, pressure sensitive adhesive, developed to offer better light diffusion and uniformity in illuminated signs. Suitable for second surface of clear or translucent acrylic or as an underlaminate for 3M™ Scotchcal™ Translucent Films. This film allows 30 percent light transmission. Up to 10 years durability.

+ Silicon for consumer range finders. Choosing the right APD material is key, if you are looking for the best performance for laser range finding applications.

This APD is particularly suited for spectroscopy, fluorescence measurement, medical technology, and high end LiDAR applications.