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81628B +40dBm Optical Power Head
A built-in calibrated integrating sphere and detachable heatsink allows this head with InGaAs detector to measure power up to +40dBm
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HIGHLIGHTS
- High input power levels up to +40 dBm with Integrating sphere
- Integrating sphere for high power levels of +40 dBm
- Wide 8 mm diameter aperture
- Detachable heatsink for input power above 2W
The 81628B optical power head has a built-in integrating sphere with wavelength-dependent calibration for accurate high power measurements. Distributing the power over a large surface away from the detector assures linearity and temperature stability. 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 bare fiber clamps.
The 81628B is used with the threaded type adapters. When the adapter is removed, the 8 mm diameter aperture is available for input to open beams or customized fiber holders. The heads are connected to the 816x mainframes using the 81618A single channel or 81619A dual-channel interface module.
Benefits
- This measurement setup ensures the distribution of the high power equally to all parts of the sphere avoiding partial hot spots, which guarantess long lifetime and uncompromised reliability
| 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
- High input power levels up to +40 dBm with Integrating sphere
- Integrating sphere for high power levels of +40 dBm
- Wide 8 mm diameter aperture
- Detachable heatsink for input power above 2W
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