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81623B Germanium Optical Power Head
This optical power head has a 5 mm diameter Ge detector for general purpose power measurements over the wide wavelength range of 750-1800nm. A special version with Si detector for 450-1020 nm can be offered on request.
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HIGHLIGHTS
Key performance specifications
- Wide wavelength range: 750 – 1800 nm
- Economical germanium detector: recommended at 850 nm
- 5 mm diameter detector for fiber NA to 0.3 and open beams
- Special calibration option: ±2.5% uncertainty 800 – 1000 nm
- Special calibration option: ±1.7% uncertainty 1000 – 1650 nm
The 8162xB family of optical power heads provide accurate power measurements with a large area detector in a remote head for flexible positioning. Functionality includes averaging time settings from 100 µs to 10 s, automatic power ranging, monitoring of minimum and maximum values and logging up to 20k samples. Fiber adapters are available for common connector types including MT ribbon fiber connectors and bare fiber clamps. (see www.keysight.com/find/octaccessories) The D-shaped adapter type are held magnetically for quick adapter change. The heads also include a removable 81624DD adapter ring for use with the threaded type adapters. The heads are connected to the 816x mainframes using the 81618A single channel or 81619A dual-channel interface module.
| 8162xB Product Comparison | |||||
|---|---|---|---|---|---|
| 81620B | 81623B | 81624B | 81626B | 81628B | |
| Sensor element | Si, Ø 5 mm | Ge, Ø 5 mm | InGaAs, Ø 5 mm | InGaAs, Ø 5 mm | InGaAs |
| Wavelength range | 450 nm to 1020 nm | 750 nm to 1800 nm | 800 nm to 1700 nm | 850 nm to 1650 nm | 800 nm to 1700 nm |
| Power range | +10 dBm to –90 dBm | +10 dBm to –80 dBm | +10 dBm to –90 dBm | +27 dBm to –70 dBm (1250nm – 1650nm) +23 dBm to –70 dBm (850nm – 1650nm) |
+40 dBm to –60 dBm (800nm – 1700nm) |
| Relative uncertainty -due to polarization -spectral ripple (due to interference) |
< ± 0.01 dB (typ. < ± 0.005 dB) < ± 0.006 dB (typ. < ± 0.003 dB |
≤ ± 0.005 dB (typ. ± 0.002 dB) ≤ ± 0.005 dB (typ < ± 0.002 dB) |
≤ ± 0.005 dB (typ. ± 0.002 dB) ≤ ± 0.005 dB (typ. < ± 0.002 dB) |
typ. ≤ ± 0.006 dB | |
Learn more about Keysight Optical Power Measurement
Key Specifications
Standard Configurations
Key performance specifications
- Wide wavelength range: 750 – 1800 nm
- Economical germanium detector: recommended at 850 nm
- 5 mm diameter detector for fiber NA to 0.3 and open beams
- Special calibration option: ±2.5% uncertainty 800 – 1000 nm
- Special calibration option: ±1.7% uncertainty 1000 – 1650 nm
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