Defense and Aerospace Photodiodes

Excelitas has over 30 years of experience providing sensors for the accurate measurement and detection of light, heat, motion, and distance in mission-critical military and aerospace applications.

Excelitas offers a wide range of emitters and detectors for laser ranging and designating and proximity fuzing and laser warning systems, including the EXACTD series, detectors, and pulsed lasers. We also offer terminal guidance detectors for precision guided munitions and laser spot tracking, as well as emitters for target acquisition, ranging, and designation.

We address requirements with both standard (off-the-shelf) products and customer-specific designs customized to meet end-user requirements.

Excelitas Laser Range-Finding Detectors

Laser Range-Finding Detectors

Excelitas is committed to keeping our troops safe and secure. We provide a portfolio of detectors and emitters that can satisfy a variety of laser range finding applications, from man-portable and fire control systems to unmanned air vehicles. Our wide range of emitters and detectors can satisfy your laser range finding requirements for standard and mil-spec applications. We offer both standard off-the-shelf products and custom designs to meet your exacting specifications.We also offer a full line of APDs for commercial range finding applications, as well as a full range of high power laser diodes for commercial range finding applications.Our offerings include: Si and InGaAs APDs, 1060nm NIR enhanced Si APDs,Si PIN and APD modules – InGaAs APD modules, andPulsed laser diodes.
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Excelitas Avalanche Photodiodes

Avalanche Photodiodes

Excelitas offers Avalanche Photodiodes (APDs) on both Silicon (Si) and InGaAs materials. Si APDs cover the spectral range of 400 nm to 1100 nm and the InGaAs APDs cover 950 nm to 1550 nm.An Avalanche Photodiode (APD) provides higher sensitivity than a standard photodiode and is for extreme low-level light (LLL) detection and photon counting.The use of APDs instead of PIN photodetectors will result in improved sensitivity in many applications. In general, APDs are useful in applications where the noise of the amplifier is high, for example, much higher than the noise in the PIN photodetector.
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Excelitas YAG photodiodes are available in variable active diameters and polarity.

YAG-Enhanced Photodiodes

Excelitas is the leading provider of off-the-shelf and customer-specific YAG-enhanced terminal guidance detectors. Applications include precision munitions, target acquisition, laser spot tracking, and missile guidance.Our wide range of devices offer high speed, responsivity, and quantum efficiency for photon detection from 400 up to 1700 nm.
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The C30927 series are quadrant silicon avalanche photodiodes, useful in a variety of tracking and alignment applications.

Quadrant Detectors

Precise beam positioning can be achieved by using our quadrant PIN and avalanche photodetectors. They are designed with 4 pie-shaped quadrant sections from doping process, thus reducing to almost zero the “dead” space between each quadrant. Their structure allows high quantum efficiency and fast response for detection of photons in the 400 to 1100 nm range.
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Excelitas’ EXACTD-362 module detects and provides highly-precise AoA information from laser range finders, laser target designators and active E.O. systems for driving effective countermeasures. 

Laser Warning Detectors

Excelitas is the world leader in laser warning detectors, including the Excelitas EXACTD series for ground vehicle, naval vessels, and fixed or rotary wing aircraft Laser Warning Systems.Excelitas Silicon and InGaAs photodiodes provide detection from 220 nm to 1700 nm. These devices are offered in a variety of sizes to meet customer sensitivity and speed requirements.
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Excelitas YAG quadrants are available in variable active diameters and polarity.

YAG-Enhanced Quadrant Photodiodes

Excelitas is the leading provider of off-the-shelf and customer-specific YAG-enhanced terminal guidance detectors. Applications include precision munitions, target acquisition, laser spot tracking, and missile guidance.Our wide range of devices offer high speed, responsivity, and quantum efficiency for photon detection from 400 to 1700 nm.
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Excelitas 1064 nm  Long-Wavelength Si APDs

1064nm Long-Wavelength Enhanced Si APDs

The 1064nm Long-Wavelength Enhanced Si APDs (C30954EH, C30955EH, and C30956EH) are made using a double-diffused “reach-through” structure. The design of these photodiodes aresuch that their long wave response (i.e. >900 nm) has been enhanced without introducing anyundesirable properties.These APDs have quantum efficiency of up to 40 % at 1060 nm.
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Several different packages are available for our lasers to meet your needs

Proximity Fuzing

Excelitas offers a broad range of pulsed lasers and detectors for proximity fuzes. We offer both standard off-the-shelf and customer-specific designs to meet your exacting specifications.
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