The Keysight 81624B optical power heads are specially designed for low PDL, low spectral ripple and high return loss and are used for optical component test. The heads come with a magnetic D-shape adapter and provide a safe stand. The optical heads have to be operated with the single (Keysight 81618A) or dual (Keysight 81619A) interface modules.
These modules are controlled in any configuration in any of the mainframes 8163B, 8164B and 8166B. A highly flexible connector interface palette addresses connectorized, bare fiber or open beam applications.
The 8162xB family of optical power heads provide accurate measurements using a large area detector in a remote head for flexible positioning, with averaging times from 100 µs to 10 s, auto-ranging, min-max-monitoring and logging up to 20k samples.
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.
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.
| Key Features |
|
| Key Performance Specifications | Low polarization dependence ±0.002dB
Low spectral ripple uncertainty: ±0.002dB
Large area detector 5mm
|
| Special Calibration Options | ±1.5% uncertainty with special calibration
±0.8% uncertainty with PTB calibration
|
| Benefits |
| Low relative uncertainty reduces the impact of connectorizing and fiber handling and leads to a robust test setup |
| The large area detector is less susceptible for connector misalignment and guarantees highly repeatable measurement results. Lower power per mm² makes the optical head more suitable for high power measurements and guarantees better linearity |
| Specifications |
|
|
|
|
|
| Silicon Optical Power Head |
|
|
|
|
|
| Model Overview |
|
|
|
|
|
| Model | 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)
| N/A | < ± 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 |
| Specifications |
|
| Power Sensor Modules |
|
| Model Overview |
|
| Model | Description |
| 81635A | Dual-Channel Sensor |
| 81620B | Si head, 450-1020 nm |
| 81623B | Ge head, general purpose, also 850 nm specifications |
| 81624B | InGaAs head, highest accuracy |
| 81626B | InGaAs head, high power |
| 81628B | InGaAs head with integrating sphere, highest power and accuracy at high power |
| 81630B | High Power Sensor |
| 81634B | Most accurate sensor, high sensitivity |
| 81636B | Fast Power Sensor, 100 k points, 25 μs, high dynamic range |
