APD410
(High Sensitivity Detector Unit)
High Sensitivity, Ultrafast Avalanche Photodetector - Ultraviolet
Originally developed for the detection of the beat note signal between CW or pulsed lasers, the APD410 is ideally suited for applications requiring highest sensitivity for low level input signals.
The APD avalanche photodiode series can provide an extremely sensitive alternative to traditional PIN photodiodes.
It is also fast enough for the characterization of, for example, pulsed solid-state lasers on the nanosecond time scale.
It maintains high gain stability over the 10°C to 40°C temperature range by utilizing a temperature compensation circuit, which adjusts the ~150 V DC bias to ensure operation near the breakdown voltage.
Features
- Avalanche Photodiode Temperature Compensated Setup
- Integrated Radio Frequency Amplifier
- Continuously Adjustable Gain Setting
- Long Term Field Tested in our FC8004 and FC1500 Optical Frequency Synthesizer
Key Specifications
- High Speed Response: 3 dB Bandwidth 5 MHz to 900 MHz for APD410
- Spectral Range: APD210: 400 -1000 nm APD310: 850 -1650 nm APD410: 200 -1000 nm
- Temperature Compensated Gain for 10°C to 40°C Ambient Temperature
Applications
- Fast Laser Pulses
- Ultra Low Light Level Signals
- Beat Signal of Low Level Inputs
Specifications
| Detector Type | Si |
| Optical Input* | Freespace |
| Max. Incident Power** | 10 mW |
| Operating Temperature | 10-40°C |
| Spectral Range | 200-1000 nm |
| Detector Diameter | 0.2 mm |
| Frequency Range | 1-1600 MHz |
| 3 dB Bandwidth | 5-900 MHz |
| Rise Time | 500 ps |
| Maximum Gain*** | 4.5 x 10⁴ V/W @ 650 nm |
| Dark State Noise Level | -80 dBm |
| NEP (calculated) | 87,6 pW/√ Hz |
| Output Coupling | AC |
| Output Impedance | 50 Ω |
| Signal Output | Vₚₚ = 1 V |
| Output Connectors | BNC |
| Supply Voltage**** | +12 to +15 V |
| Current Consumption | 200 mA |
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