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High-Performance InGaAs APDs

The InGaAs Avalanche Photodiode product family from Excelitas features active area sizes ranging from 30 µm to 200 µm, catering to various applications requiring photonic detection between 1000 nm and 1700 nm. The C30645, C30662, and C30733 series of avalanche photodiodes (APDs) are high-speed, high-gain devices made from InGaAs/InP. They offer high quantum efficiency (QE), high responsivity, and low noise within the 1000 nm to 1700 nm spectral range, with optimization at 1300 nm and 1550 nm wavelengths. An enhanced low-noise option for the C30645 and C30662 APD series enables OEMs to achieve advanced noise specifications and optimal signal-to-noise ratios (SNRs). This enhancement increases the detection range using the same laser output power, making it ideal for eye-safe range-finding and LiDAR systems. With a gain of up to 100, the C30733 series sets a new standard for detecting low light intensity fluctuations, essential for advanced Optical Time-Domain Reflectometer (OTDR) systems and other applications.

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Why should you choose Excelitas as your provider of High-Performance InGaAs APDs?

When it comes to industry-leading advanced photonics solutions, Excelitas is widely recognized for providing cutting-edge solutions to accurately detect particles of light and ensure the reliable performance of each device in its intended application. With more than 30 years of industry experience, trust Excelitas to deliver solutions that satisfy your requirements and meet your needs.

Our comprehensive portfolio of photonic solutions comprises high-performance APDs made from InGaAs (Indium Gallium Arsenide) that prove excellent quantum efficiency, high-speed performance and streamlined integration with existing systems. Our excellent reputation for providing reliable solutions means you gain access to superior technologies for your intended applications.

What are the different uses of High-Performance InGaAs APDs?

Avalanche Photodiodes (APDs) are semiconductors that are used primarily to detect and convert light signals into electrical signals. These APDs can be built using Indium, Gallium and Arsenic, which are advantageous as they are able to detect light in the near-infrared (NIR) and short-wavelength infrared (SWIR) with high efficiency and sensitivity. They are also compatible with existing technologies and can be integrated into various device architectures for easier adoption in various applications, such as in optical sensing, light detection and ranging (LIDAR), photon counting and detection.

What types of High-Performance InGaAs APDs do you offer?

Excelitas offers a broad range of InGaAs High-Performance APDs designed to excel in various applications that require highly sensitive photon detection capabilities in the NIR and SWIR ranges with fast response times. The following products comprise our comprehensive InGaAs APD offerings:

  • C30645ECERH - InGaAS APD, 80µm , Ceramic - provides an 80 µm active diameter in ceramic submount carrier.
  • C30645EH - InGaAs APD, 80µm, TO-18 Low-Profile - capable of providing an 80 µm active diameter and comes in a hermetic TO-18 package and small aperture silicon window.
  • C30645L-080 - InGaAs APD, 80µm, SMD Package - high-speed APDs that provide high responsivity and high quantum efficiency at low noise within the 1000 nm and 1700 nm spectral range. They also provide an 80 µm active diameter in a compact SMD package.
  • C30662ECERH - InGaAs APD, 200µm, Ceramic - this large-area InGaAs APD provides an active diameter of 200 µm and comes in a ceramic submount carrier.
  • C30662ECERH-1 - InGaAs APD, 200µm, Ceramic - also provides an active diameter of 200 µm. It comes in a ceramic submount carrier with a Delta Vbd-Vop > 4V.
  • C30662EH - InGaAs APD, 200µm, TO-18 - comes in a hermetic TO-18 package with a large aperture glass window. It provides an active diameter of 200 µm.
  • C30662EH-1 - InGaAs APD, 200µm, TO-18 - has similar features to the C30662EH but also comes with a Delta Vbd-Vop > 4V.
  • C30662EH-3 - InGaAs APD, 200µm, TO-18, Small-Aperture - similar to the C30662EH while also coming in a similar package but with a small aperture glass window.
  • C30662L-200 - InGaAs APD, 200µm, SMD Package - these high-performance APDs have high speeds and large areas and provide high quantum efficiencies and responsivity while keeping noise to a minimum within the 1000 nm and 1700 nm spectral range. They provide an active diameter of 200 µm in a compact SMD package.
  • C30733BQC-01 InGaAs APD, 30µm Fiber Pigtail with FC/APC Connector - this high-speed, high-gain detector features a unique combination of high gain, fast recovery time and low noise performance, making it ideal for high end test equipment and is setting a new trend in high-speed applications that require signal-to-noise rations between 1000 nm and 1700 nm.
  • C30733EH-1 - InGaAs APD, 30µm, TO-18 Low-Profile - optimized for the 1310 nm to 1650 nm wavelength range, this small-area APD provides a 30 µm active diameter in a hermetic TO-18 packaging. It is suitable for use in high-end test equipment where extremely fast response and recovery times are required.
What are the applications of High-Performance InGaAs APDs?

Excelitas’ high-performance InGaAs APDs are designed to provide highly sensitive photon detection capabilities, which are highly sought after in the following applications:

  • LiDAR / ToF measurements
    • Eye-safe Laser range finding
    • High volume consumer applications
    • Optical time-domain reflectometer (OTDR)
    • Optical communication systems
    • Laser scanning
  • Confocal microscope
  • Free space communication
  • Spectrophotometers
  • Fluorescence detection
  • DNA sequencer
  • Particle sizing
Do you offer custom High-Performance InGaAs APDs?

Excelitas is proud to offer a wide range of off-the-shelf high-performance InGaAs APDs to provide reliable devices for the detection and measurement of light in the NIR and SWIR range. We develop high-quality products that meet the needs of our OEM clients, enabling them to also manufacture solutions that meet the requirements of their end-user customers.

Browse our comprehensive product portfolio to find solutions that match your operational requirements. Should you have any specialized requirements that are not readily available in our product offerings, you are also welcome to communicate them with us so we can collaborate and develop solutions that meet your specific needs without compromising quality, cost and time to market.

Excelitas Photon Detection Catalog
High-Performance InGaAs Avalanche Photodiodes

Product List

Part Number
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C30645 InGaAs Avalanche Photodiodes Series

The C30645 Series combines various products of large-area InGaAs Avalanche Photodiodes (APD) with an 80 µm active area. Excelitas InGaAs APDs provide high quantum efficiency (QE), high responsivity, and low noise in the spectral range between 1000 nm and 1700 nm. They are supplied in a hermetically sealed TO-18 package or on a ceramic carrier. The ceramic surface mount package allows for easy integration into high-volume applications.
Part Number
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C30662 InGaAs Avalanche Photodiodes Series

The C30662 Series features a variety of large-area InGaAs Avalanche Photodiodes (APDs) with a 200 µm active area. Excelitas InGaAs APDs offer high quantum efficiency (QE), robust responsivity, and low noise across the spectral range of 1000 nm to 1700 nm. These devices are available in a hermetically sealed TO-18 package or on a ceramic carrier. The ceramic surface mount package facilitates easy integration into high-volume applications.
Part Number
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C30733 InGaAs Avalanche Photodiodes Series

The C30773 Series combines various products of high-gain InGaAs Avalanche Photodiodes (APD) with 30 µm active area. Excelitas InGaAs APDs provide large quantum efficiency (QE), high responsivity and low noise in the spectral range between 1000 nm and 1700 nm. They are supplied in a hermetically sealed TO-18 package, or as FC/APC single mode fiber pigtail.