LBTEK-Your Trusted Partner For Optoelectronic Experiments!

Product Description

Wavelength coverage range 300-1700 nm
SMA output connector, includes SMA to BNC cable
M-factor temperature compensation
Silicon-based and InGaAs detectors available

LBTEK's Avalanche Photodetectors offer higher sensitivity and lower noise compared to similar PIN detectors. They feature an integrated thermistor that compensates for the impact of temperature variations on the M-factor by adjusting the bias voltage, making them suitable for low-light-power applications. Generally, avalanche photodiodes utilize an internal gain mechanism to enhance sensitivity. A high reverse bias voltage is applied to the diode to create a strong electric field. When incident photons generate an electron-hole pair, the electric field accelerates the electrons, leading to secondary electron generation through impact ionization. The resulting electron avalanche produces a gain factor of several hundred, represented by the multiplication factor M, which is a function of reverse bias voltage and temperature. Typically, the M-factor increases as temperature decreases and decreases as temperature rises. Similarly, the M-factor increases with higher reverse bias voltage and decreases with lower reverse bias voltage.

Attribute

Operating Voltage9 V

Operating Current＜200 mA

Output impedance50 Ω

Output connectorSMA female

Silicon-based avalanche photodetectors

Spectral response range: 300/400-1000/1100 nm
Fixed gain
Optional fiber optic input and free-space input
Detector type: Silicon-based

LBTEK's Silicon-based Avalanche Photodetector has a spectral response range of 300/400-1000/1100 nm. It offers both fiber optic and free-space optical input options, and integrates a thermistor. This thermistor adjusts the bias voltage across the APD to compensate for temperature-induced variations in the M-factor, thereby ensuring better output stability in fluctuating temperature environments.

Detector mounted on the base

Product Model	Spectral response range	bandwidth	rise time	Input method	NEP (Noise Equivalent Power)	Unit Price	Lead Time
APD-FS10A	400-1000 nm	10 MHz	40 ns	Fiber optic input	0.11 pW/√Hz	$732.15	4 weeks
APD-FS400A	400-1000 nm	400 MHz	1 ns	Fiber optic input	0.64 pW/√Hz	$732.15	4 weeks
APD-S01A	300-1000 nm	1.5 MHz	250 ns	Spatial Light Input	0.82 pW/√Hz	$1255.12	5 weeks
APD-S10A	400-1100 nm	10 MHz	40 ns	Spatial Light Input	0.11 pW/√Hz	$976.24	4 weeks
APD-S400A	400-1100 nm	400 MHz	1 ns	Spatial Light Input	0.64 pW/√Hz	$1025.14	4 weeks

Indium Gallium Arsenide Avalanche Photodetectors

Spectral response range: 1000-1700 nm
Fixed gain
Optional fiber optic input or free-space optical input
Detector type: Indium Gallium Arsenide

LBTEK's Indium Gallium Arsenide avalanche photodetector has a spectral response range of 1000-1700nm. It offers both fiber optic and free-space optical input options, and integrates a thermistor. This thermistor adjusts the bias voltage across the APD to compensate for temperature-induced variations in the M-factor, thereby providing better output stability in fluctuating temperature environments.

Detector mounted on the base

Product Model	Spectral response range	bandwidth	rise time	Input method	NEP (Noise Equivalent Power)	Unit Price	Lead Time
APD-FS10C	1000-1700 nm	10 MHz	40 ns	Fiber optic input	0.42 pW/√Hz	$732.15	4 weeks
APD-FS400C	1000-1700 nm	400 MHz	1 ns	Fiber optic input	1.8 pW/√Hz	$732.15	4 weeks
APD-S10C	1000-1700 nm	10 MHz	40 ns	Spatial Light Input	0.42 pW/√Hz	$1255.12	4 weeks
APD-S400C	1000-1700 nm	400 MHz	1 ns	Spatial Light Input	1.8 pW/√Hz	$1255.12	4 weeks