The Ando AQ8201-422 is a 2×2 dual optical switch module for the AQ8200 series optical test and measurement platform. It enables high-performance optical path routing across the C-band and L-band spectrum, delivering exceptional isolation and low insertion loss for DWDM component characterization. The module mounts directly into AQ8200 series mainframes and integrates with light sources, attenuators, and power meters to form complete measurement systems for research, development, and manufacturing applications.
## Technical Specifications
• **Switch Configuration:** 2×2
• **Wavelength Range:** 1480 nm to 1620 nm
• **Fiber Type:** Singlemode 9/125 µm
• **Connector Type:** FC/APC
• **Insertion Loss:** 1.7 dB (general); Channel A 0.0049 dBm average; Channel B 0.0024 dBm average
• **Return Loss:** 50 dB or greater
• **Optical Isolation:** 60 dB or greater
• **Polarization Dependent Loss (PDL):** Channel A 0.0135 dBm average; Channel B 0.0158 dBm average
• **Repeatability:** ±0.02 dB
• **Input Ports:** 2 bulkhead connectors (front)
• **Output Ports:** 2 bulkhead connectors (front)
## Key Features
• Ultra-low insertion loss and high crosstalk rejection support precision DWDM measurements
• Consistent switch performance across C- and L-band wavelengths
• FC/APC connectors minimize back-reflection in critical optical paths
• Tight repeatability enables reliable switching in automated test sequences
## Typical Applications
The AQ8201-422 is designed for characterization of wavelength-division multiplexed components including MUX/DEMUX devices, arrayed waveguide gratings (AWG), and optical amplifiers (EDFA).
## Compatibility & Integration
The module plugs into AQ8200 series mainframes including the AQ8202, AQ8203, and AQ8204. These mainframes support 3-module or 10-module configurations and provide GPIB control interfaces for system automation. Compatible source and measurement modules include WDM DFB lasers, variable optical attenuators, and optical power meters.
