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Low noise photodetector
Koheron PD100 photodetectors are amplified photodetectors with a bandwidth in excess of 100 MHz. Designed for shot noise limited operation with hundreds of µW of incident power, PD100 photodetectors make perfect candidates for coherent sensing. PD100 photodetectors are available with mounted InGaAs photodiode or without photodiode and in AC or DC coupled versions.
| Quantity | Price |
|---|
Resources
Specifications
| PD100-AC | PD100-DC | |
|---|---|---|
| Detector | ||
| Detector type | InGaAs photodiode | InGaAs photodiode |
| Wavelength range | 900 nm to 1700 nm | 900 nm to 1700 nm |
| Optical input power | 0 mW to 2.5 mW | 0 mW to 0.6 mW |
| Photodiode connector | FC | FC |
| Photodiode active diameter | 300 µm | 300 µm |
| Photodiode peak responsivity | 0.90 A/W | 0.90 A/W |
| Transimpedance amplifier | ||
| Coupling | AC | DC |
| Small signal bandwidth | 1.6 kHz to 105 MHz at 3 dB (Cin = 4 pF) | 0 Hz to 110 MHz at 3 dB (Cin = 4 pF) |
| Transimpedance gain | 3.9 kV/A | 3.9 kV/A |
| Input current noise density (10 MHz, Cin = 4 pF) | 9 pA/√Hz | 7 pA/√Hz |
| Offset voltage | -2 mV to 2 mV | -2 mV to 2 mV |
| Output impedance | 50 Ω | 50 Ω |
| Output | SMA female connector | SMA female connector |
| Power supplies | ||
| Positive supply voltage | 5.5 V to 12 V (nominal 6 V) | 5.5 V to 12 V (nominal 6 V) |
| Negative supply voltage | -12 V to -5.5 V (nominal -6 V) | -12 V to -5.5 V (nominal -6 V) |
| Quiescent current | 20 mA per rail | 20 mA per rail |
| Maximum current | 50 mA (positive rail) | 50 mA (positive rail) |
| Other | ||
| Outside dimensions | 38 mm x 53 mm x 14 mm | 38 mm x 53 mm x 14 mm |
| Operating temperature | 0 °C to 50 °C | 0 °C to 50 °C |
| Weight | 15 g | 15 g |
| Mechanical details | Compatible with M6 metric breadboards (25 mm spacing) | Compatible with M6 metric breadboards (25 mm spacing) |
More Photodetectors
Functional diagram
Characterization
Output power spectral density
The power spectral density of the PD100 output is given for different incident optical powers. The spectrum analyzer is a Tektronix RSA306 in series with a Mini-Circuits ZFL-500LN+ 28 dB low-noise amplifier. Optical source is a Koheron LD100 laser at 1550 nm .
Frequency response
Noise equivalent power
Revision history
- 2 - August 2018: New options: PD100-AC / PD100-DC.
