800um SI APD Preamplifier Module

Name: 800um SI APD Preamplifier Module
Brand: CSRayzer Optical Technology
Availability: InStock

Description

CR800AH-1064-150M-LN 800 µm Si APD Preamplifier Module Overview

The CR800AH-1064-150M-LN is a high-speed, ultra-low-light silicon avalanche photodiode preamplifier module designed for demanding optical detection at 1064 nm and across a broad 400 nm to 1100 nm spectral range. Integrating an 800 µm Si APD with a hybrid transimpedance preamplifier, this compact APD-TIA detector module provides strong sensitivity for weak optical signal acquisition in pulsed and continuous-wave photonics systems.

Optimized for laser rangefinding, LiDAR, and free-space optical communication, the module delivers a typical responsiveness of at least 250 kV/W at 1064 nm with avalanche gain, while maintaining a 150 MHz bandwidth for fast signal response. Its 800 µm active diameter offers a practical balance between optical coupling tolerance and high-speed operation, making it suitable for systems where alignment flexibility, low noise, and fast pulse detection are important.

Compared with similar Si APD preamplifier modules used in industrial laser detection and ranging systems, the CR800AH-1064-150M-LN emphasizes low-noise performance, enhanced overload protection, and reliable operation over a wide temperature range. With a rise/fall time of approximately 2.3 ns, 50 Ω output impedance, and ±5 V supply operation, it can be integrated into high-speed receiver chains, timing electronics, and optical sensing platforms that require stable electrical output from extremely weak incoming light.

The device is supplied in a TO-8 package with a flat window, supporting robust installation in OEM optical assemblies and laboratory photodetection setups. Its design is particularly well suited for 1064 nm laser echo detection, near-infrared optical receivers, pulsed laser measurement, precision ranging instruments, and compact optical communication receivers where high gain, wide bandwidth, and dependable low-light response are required.

Specifications

APD Type:	InGaAs
Operational Wavelength (Typical):	1064 nm
Operational Wavelength Range:	400 – 1100 nm
Product:	800 um SI APD Preamplifier Module
Model:	CR800AH-1064-150M-LN
APD Type:	Silicon avalanche photodiode (SI APD)
Built-in Components:	800 um SI APD + TIA
Package:	TO8 with flat window
Response Spectrum:	400~1100 nm
Target Wavelength:	1064 nm
Active Diameter:	800 um
Reverse Breakdown Voltage:	350~460 V
Operating Voltage:	0.95 × VBR
Responsivity:	≥250 kV/W
Responsivity Test Condition:	M=100, 1.064 um, τ=10 ns
Dynamic Range:	25 dB
Dynamic Range Test Condition:	M=100, 1.064 um, τ=100 ns
-3 DB Bandwidth:	150 MHz
Rise/Fall Time:	2.3 ns
Rise/Fall Time Test Condition:	10%~90%
Noise Equivalent Power:	150 fW/√Hz
NEP Test Condition:	M=10, f=100 kHz, Δ=1 Hz
Output Impedance:	50 Ω
Output Voltage Swing:	0.7 V
Positive Supply Current:	30 mA
Negative Supply Current:	10 mA
Negative Supply Current Test Condition:	50 Ω load
Module Main Voltage:	±5 V
Power Dissipation:	250 mW
Maximum Optical Input Power:	100 mW
Operating Temperature:	-40~+85 ℃
Storage Temperature:	-55~+100 ℃
Soldering Temperature:	300 ℃
Soldering Time:	10 s
Temperature Coefficient Of Vop For Constant Gain:	2.4~3.0 V/℃
Temperature Coefficient Test Range:	-45~+85 ℃
Concentricity:	30 um
Overload Protection:	Enhanced
Temperature Sensor:	AD590 or 1N914 optional

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Features

Key Features – CR800AH-1064-150M-LN 800 µm Si APD Preamplifier Module

High-sensitivity 1064 nm APD receiver module: Designed for ultra-low light detection in LiDAR, laser rangefinding, and free-space optical communication systems.
Built-in 800 µm Silicon Avalanche Photodiode + TIA: Integrated Si APD and hybrid transimpedance preamplifier provide a compact, ready-to-integrate optical detection solution.
Large 800 µm active diameter: Wide photosensitive area supports easier optical alignment and efficient signal capture in pulsed laser and ranging applications.
Optimized for 1064 nm detection: Delivers high responsivity at 1.064 µm, making it ideal for Nd:YAG laser-based ranging, scanning, and sensing systems.
Broad spectral response range: Covers 400 nm to 1100 nm, enabling use across visible and near-infrared detection applications.
High responsivity: Typical responsivity of ≥250 kV/W at 1064 nm with avalanche gain, enabling detection of weak optical return signals.
150 MHz high-speed bandwidth: Supports fast optical pulse detection with 150 MHz -3 dB bandwidth for time-of-flight, LiDAR, and high-speed optical sensing.
Fast rise/fall time: Typical 2.3 ns rise/fall time supports accurate pulse timing and improved range resolution.
Low-noise performance: Low-noise design with typical 150 fW/√Hz NEP helps improve signal-to-noise ratio in weak-light environments.
Enhanced overload protection: Integrated protection improves reliability when exposed to high optical input levels or transient optical pulses.
Wide dynamic range: Typical 25 dB dynamic range supports detection of varying return-signal strengths in practical ranging and LiDAR environments.
50 Ω output impedance: Standard 50 Ω output enables convenient connection to oscilloscopes, digitizers, RF electronics, and signal-processing circuits.
Compact TO-8 package: Rugged TO-8 package with flat window supports reliable integration into optical receiver assemblies and OEM instruments.
±5 V module supply: Operates with standard +5 V and -5 V power rails for simplified system integration.
High reliability across temperature range: Rated for-40°C to +85°C operating temperature and -55°C to +100°C storage temperature.
APD bias compatibility: Designed for operation near 0.95 × VBR at avalanche gain conditions, with reverse breakdown voltage typically in the 350 V to 460 V range.
Optional temperature sensing: Supports optional AD590 or 1N914 temperature sensor configuration for temperature compensation and stable APD gain control.
Precision optical alignment: Concentricity specification of 30 µm supports accurate coupling and repeatable optical positioning.
Suitable for demanding OEM systems: Ideal for pulsed laser detection, 1064 nm LiDAR receivers, time-of-flight sensors, laser rangefinders, optical communication receivers, and scientific instrumentation.
ESD-sensitive device: Proper electrostatic discharge handling procedures are recommended during installation and integration.

Applications

Applications for CR800AH-1064-150M-LN 800 µm Si APD Preamplifier Module

1064 nm LiDAR systems: High-sensitivity detection for pulsed laser LiDAR, 3D mapping, terrain profiling, obstacle detection, and long-range optical sensing.
Laser rangefinding: Ideal for compact and industrial laser rangefinders requiring fast response, low-noise detection, and reliable operation at 1064 nm.
Time-of-flight distance measurement: Suitable for nanosecond pulse detection in ToF measurement systems, including industrial metrology, robotics, automation, and surveying equipment.
Free-space optical communication: High-bandwidth APD receiver module for FSO communication links, optical telemetry, and short-to-medium range wireless optical data transmission.
UAV and drone LiDAR payloads: Large 800 µm active area and high responsivity support airborne laser scanning, navigation, collision avoidance, and remote sensing applications.
Autonomous vehicle and robotics sensing: Applicable to near-infrared optical detection systems for machine vision, robotic navigation, AGV guidance, and automated obstacle recognition.
Atmospheric LiDAR and aerosol detection: Supports weak backscatter signal detection in atmospheric monitoring, cloud profiling, aerosol measurement, and environmental sensing systems.
Laser scanning and 3D imaging: Used in scanning LiDAR receivers, range-gated imaging, object profiling, and high-speed optical imaging systems operating from 400 nm to 1100 nm.
Optical radar and laser radar receivers: Designed for low-light, high-speed detection in laser radar systems requiring enhanced sensitivity and overload protection.
Security and perimeter monitoring: Suitable for infrared laser-based intrusion detection, surveillance LiDAR, long-distance target detection, and perimeter scanning systems.
Industrial optical sensing: Used in non-contact measurement, positioning sensors, high-speed optical inspection, displacement sensing, and precision alignment systems.
High-speed pulsed laser detection: 150 MHz bandwidth and fast rise/fall time make the module suitable for detecting short optical pulses in laboratory and OEM instrumentation.
Optical test and measurement equipment: Can be integrated into photodetector test platforms, laser pulse characterization systems, optical receiver evaluation setups, and NIR detection instruments.
Scientific research and photonics experiments: Applicable to low-light optical experiments, time-resolved measurements, pulsed laser diagnostics, and near-infrared signal detection.
Fluorescence and time-resolved spectroscopy: Useful for detecting weak optical signals in fluorescence lifetime studies, transient absorption measurements, and fast optical response experiments within the silicon APD wavelength range.
Laser beam diagnostics: Suitable for monitoring pulsed laser output, reflected laser signals, optical timing, and fast intensity variations at 850 nm, 905 nm, 940 nm, and 1064 nm.
Remote sensing instruments: Supports high-sensitivity optical receiver designs for environmental monitoring, topographic sensing, vegetation analysis, and target reflection measurement.
Optical trigger and synchronization systems: Fast response enables use as an optical trigger detector for laser timing, synchronization, and high-speed event detection.
Defense and aerospace optical detection: Applicable to laser rangefinding, target detection, optical tracking, and rugged low-light NIR sensing systems requiring high reliability.
OEM APD photoreceiver integration: Compact TO-8 package with built-in Si APD and transimpedance amplifier is suitable for integration into custom optical instruments, LiDAR receivers, and low-noise NIR detection modules.

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Frequently Asked Questions

What is the CR800AH-1064-150M-LN 800 um Si APD preamplifier module used for?

The CR800AH-1064-150M-LN is a high-speed, low-noise silicon avalanche photodiode receiver module designed for ultra-low-light detection at 1064 nm. It is commonly used in LiDAR, laser rangefinding, pulsed laser detection, time-of-flight systems, and free-space optical communication.

What wavelength range does the CR800AH-1064-150M-LN APD module support?

This Si APD preamplifier module supports a spectral response range of 400 to 1100 nm and is optimized for 1064 nm operation, making it suitable for Nd:YAG laser detection, near-infrared LiDAR, and laser rangefinder applications.

What are the key performance specifications of the CR800AH-1064-150M-LN?

Key specifications include an 800 um active diameter, built-in Si APD plus transimpedance amplifier, sensitivity of at least 250 kV/W at 1064 nm, 150 MHz bandwidth, 2.3 ns rise/fall time, 150 fW/√Hz noise equivalent power, 25 dB dynamic range, and 50 ohm output impedance.

How does an 800 um active area benefit LiDAR and laser rangefinding systems?

An 800 um active diameter provides a larger optical collection area than smaller APDs, helping capture weak return signals and easing optical alignment. This is especially useful in LiDAR and laser rangefinding where reflected laser pulses can be very weak, although larger active areas may have higher capacitance than smaller detectors.

What power supplies are required for the CR800AH-1064-150M-LN APD receiver module?

The module requires ±5 V main supply rails for the preamplifier electronics and a separate high-voltage APD bias. The APD operating voltage is typically set around 0.95 times the breakdown voltage for a gain of M=100. The breakdown voltage is specified from 350 V to 460 V, so the actual bias should be adjusted for the individual device and temperature.

Is the CR800AH-1064-150M-LN suitable for high-speed pulsed laser detection?

Yes. With a 150 MHz bandwidth and typical 2.3 ns rise/fall time, the module is suitable for detecting fast optical pulses in time-of-flight LiDAR, laser rangefinding, and free-space optical communication. The datasheet specifies responsivity at 1064 nm with 10 ns pulse conditions.

What precautions are needed when using this Si APD preamplifier module?

The module is ESD-sensitive and should be handled using proper electrostatic discharge precautions. Users should also observe the maximum optical input power of 100 mW, operate within the -40°C to +85°C temperature range, provide correct ±5 V supplies, use a proper APD high-voltage bias circuit, and account for the operating-voltage temperature coefficient of approximately 2.4 to 3.0 V/°C for constant gain.

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