Keysight Agilent 81623B Germanium Optical Power Head 750-1800nm Ge Sensor
Product Overview
The Keysight Agilent 81623B is a Germanium (Ge) optical power head designed for precision fiber optic power measurements across the 750 nm to 1800 nm wavelength range. Equipped with a high-sensitivity 5 mm diameter Germanium photodiode, it delivers excellent responsivity in the near-infrared spectrum, making it ideal for both short-wavelength (850 nm multimode) and long-wavelength (1310/1550 nm singlemode) applications. Compatible with the Keysight 816x Lightwave mainframe series. This unit is pre-owned, fully tested, and can be ISO 17025 calibrated with a data certificate upon request.
Key Features & Specifications
- Wavelength Range: 750 nm to 1800 nm
- Sensor Type: Germanium (Ge) photodiode, 5 mm diameter
- Power Range: +10 dBm to -80 dBm typical
- Uncertainty: ±2.5% typical at reference conditions
- Wavelength Flatness: Excellent across full wavelength range
- Broad Spectral Coverage: Covers both 850 nm MM and 1310/1550 nm SM bands
- Compatibility: Works with Keysight 8163B, 8164B, 8166B Lightwave mainframes
- Connector Interface: Threaded adapter ring for FC, SC, ST, LC, and bare fiber adapters
- Condition: Pre-Owned, tested in full working condition
Why Germanium (Ge)?
Germanium sensors offer distinct advantages over silicon-based photodiodes: