Low noise photodetector
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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.
Specifications
PD100-AC PD100-DC
| Coupling | AC | DC |
| Power supply (positive) | 6 - 12 VDC | 6 - 12 VDC |
| Power supply (negative) | -12 to -6 VDC | -12 to -6 VDC |
| Small signal bandwidth | 1.6 kHz - 105 MHz at 3 dB (Cin = 4 pF) | 0 - 110 MHz at 3 dB (Cin = 4 pF) |
| Transimpedance gain | 3.9 kV / A | 3.9 kV / A |
| Input current noise density | 9 pA / √Hz (at 10 MHz, Cin = 4 pF) | 7 pA / √Hz (at 10 MHz, Cin = 4 pF) |
| Offset voltage | ±2 mV | ±2 mV |
| Output impedance | 50 Ω | 50 Ω |
| Outside Dimensions | 38 mm x 53 mm x 14 mm | 38 mm x 53 mm x 14 mm |
| Outputs | SMA | SMA |
| Mechanical details | Compatible with M6 metric breadboards (25 mm spacing) | Compatible with M6 metric breadboards (25 mm spacing) |
| Weight | 15 g | 15 g |
| InGaAs photodiode | ||
| Wavelength range | 900 - 1700 nm | 900 - 1700 nm |
| Optical input power | 0 - 2.5 mW | 0 - 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 |
| Operating temperature | 0 °C - 50 °C | 0 °C - 50 °C |
Specifications
PD100-AC PD100-DC
| Coupling | AC | DC |
| Power supply (positive) | 6 - 12 VDC | 6 - 12 VDC |
| Power supply (negative) | -12 to -6 VDC | -12 to -6 VDC |
| Small signal bandwidth | 1.6 kHz - 105 MHz at 3 dB (Cin = 4 pF) | 0 - 110 MHz at 3 dB (Cin = 4 pF) |
| Transimpedance gain | 3.9 kV / A | 3.9 kV / A |
| Input current noise density | 9 pA / √Hz (at 10 MHz, Cin = 4 pF) | 7 pA / √Hz (at 10 MHz, Cin = 4 pF) |
| Offset voltage | ±2 mV | ±2 mV |
| Output impedance | 50 Ω | 50 Ω |
| Outside Dimensions | 38 mm x 53 mm x 14 mm | 38 mm x 53 mm x 14 mm |
| Outputs | SMA | SMA |
| Mechanical details | Compatible with M6 metric breadboards (25 mm spacing) | Compatible with M6 metric breadboards (25 mm spacing) |
| Weight | 15 g | 15 g |
| InGaAs photodiode | ||
| Wavelength range | 900 - 1700 nm | 900 - 1700 nm |
| Optical input power | 0 - 2.5 mW | 0 - 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 |
| Operating temperature | 0 °C - 50 °C | 0 °C - 50 °C |