Keysight Agilent 81623B Germanium Optical Power Head 750-1800nm Ge Sensor ISO17025 Calibrated with Certificate

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:

• 🔬 Extended Infrared Response: Covers 750 nm to 1800 nm (vs. Si limited to ~1100 nm)
• 📊 Single-Sensor Coverage: One detector covers both 850 nm multimode and 1310/1550 nm singlemode wavelengths
• 💰 Cost-Effective: More affordable than InGaAs for broad-spectrum applications below +10 dBm
• ✅ Proven Technology: Widely used in fiber optic test and measurement for decades

ISO 17025 Calibration

This 81623B can be ISO 17025 accredited laboratory calibrated with a full data certificate including:

• ✅ Power linearity verification at multiple wavelengths (850, 1310, 1550 nm)
• ✅ Absolute power accuracy traceable to national standards
• ✅ Wavelength responsivity characterization with measurement uncertainty
• ✅ Accredited calibration certificate with complete measurement data

Applications

• Multimode and singlemode fiber optic power measurements
• Optical transceiver and component testing (850/1310/1550 nm)
• Passive optical network (PON) power budget verification
• Fiber optic cable plant insertion loss testing
• Optical power monitoring in R&D and production environments

Warranty & Return Policy

• 🛡️ 7 Days ROR (Right of Refusal) in case of functional issues
• 📋 Unit is professionally tested before shipment
• 🚚 Fast worldwide shipping via DHL, FedEx, or UPS with full tracking

Shipping & Packaging

Export-grade double-layer carton with shock-proof foam insert and vacuum-sealed ESD protection. Optical connector end-face protection cap included. Delivery: 3-7 working days worldwide.