hobbs-electrooptics
QL03 Photoreceiver
QL03 Photoreceiver
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Headline Features
- Large photodiode (150 mm2 equiv.)
- High transimpedance (1 MΩ)
- Low noise
- Shot noise limited
Example Applications
- Diffuse light measurement
- Spectroscopy
- Micro-plate readers
- Beam analysis
- Test systems
- Optical source calibration
- Florescence
- Proof of concept & test systems
Specifications
| Parameter | Value |
|---|---|
| Detection Area | 150 mm² |
| Directivity (half-angle) | ±35° |
| -3dB Bandwidth | DC - 750 kHz |
| Rise/Fall Time | 470 ns |
| Transimpedance | 1 MΩ (1 V/μA) |
| Output Voltage Range | 0 - 10 V |
| Operating Temperature | 0°C - 50°C |
| Photodiode | Hamamatsu S6968 Silicon PIN Photodiode with immersion lens |
| Slew Rate | No slew limiting with full scale step input |
| Dark Current (20 C) | 2nA |
| Output | 50 Ω Series Terminated SMA |
| Power | Pico M8-3, +-15V, 100mA max |
| Size | 115 x 65 x 44 mm, 115 x 65 x 86 mm with mount |
| Mounting | Right angle bracket with M6 set screw with 1/4" / M6 mounting hole. Bracket has an ajustable angle with M6 set screw on the enclosure. |
Noise Performance
| Frequency Range | NEP @ 840 nm | RMS Noise |
|---|---|---|
| DC - 20 kHz | 10 fW | 19 μV |
| DC - 100 kHz | 23 fW | 43 μV |
| DC - 750 kHz | 86 fW | 157 μV |
With a quantum-limited photoreceiver, the signal-to-noise ratio of the measurement is just that of the light itself – all the information present in your optical signal is preserved for the measurement. Typically we’re working pretty hard to get that signal, so it’s a shame to let a poor photoreceiver degrade it.
The QL03 follows the QL01 in our line of low light measurements. The QL03 features the Hamamatsu large area S6968 photodiode with an immersion lens. This means more light collection for diffuse light and easier aiming for beams. The QL03’s novel bootstrap topology allows for the unusual combination of speed, noise performance, transimpedance, and photodiode size.
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Documentation |
|---|
| User Manual |
Ordering
For larger quantities or OEM inquiries please email us.
