The Keysight (Agilent) 81689A is a compact tunable laser source module optimized for the C-band (1525 nm to 1575 nm). Specifically engineered for dense-WDM (DWDM) passive component tests and multi-channel DWDM transmission system testing, it supports continuous sweep capabilities and delivers excellent stability, power linearity, and high spectral purity.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Mainframe-dependent (GPIB, LAN, USB depending on host mainframe) |
| Display | None (uses mainframe display) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered directly via mainframe slot |
Optical Performance Specifications
| Parameter | Value |
|---|---|
| Wavelength Range | 1525 nm to 1575 nm |
| Wavelength Resolution | 0.01 nm (1.25 GHz at 1550 nm) |
| Maximum Output Power | ≥ 6 dBm (1525 - 1575 nm, continuous power on during tuning) |
Physical and Platform Compatibility
| Parameter | Value |
|---|---|
| Mainframe Compatibility | Keysight (Agilent) 8163A/B, 8164A/B, 8166A/B Lightwave mainframes |
| Number of Slots Required | 1 slot |
Configuration and Ordering Options
| Parameter | Value |
|---|---|
| Fiber Type Options | Option 071 (PM Panda fiber) / Option 072 (Standard Single-mode fiber) |
| Connector Interface compatibility | Agilent/Keysight 81000xI interchangeable connector adapters (e.g. FC, SC, LC, ST) |
Design
| Parameter | Value |
|---|---|
| Laser Cavity Type | External cavity laser (ECL) |
Technology
Tunable External Cavity Laser (ECL)
Applications
C-band DWDM passive component test and multi-channel test beds