The Agilent HP 11896A Polarization Controller with Option 25 is a precision instrument for manipulating polarization states across optical systems. Built on a four-stage optical fiber loop design with individual stepper motor control, it delivers sub-degree resolution adjustment and minimal insertion loss variation. Each of the four quarter-wave fiber coils rotates independently, enabling both manual and automatic polarization state synthesis. Tested and verified operational, this controller integrates into optical test benches for PDL measurements, component characterization, and PMD emulation.
– Technical Specifications
• Operating wavelength range: 1250 to 1640 nm
• Maximum input power: +23 dBm
• Optical insertion loss: <1.5 dB typical; 55 dB
• Extinction ratio: >40 dB
• Polarization adjustment resolution: 0.18° (1000 steps over 180° range)
• Rotation rate: 360° in <0.5 seconds
• Power supply: 47 to 63 Hz
• Weight: 4.5 kg
– Key Features
• Four quarter-wave fiber coils with independent stepper motor control
• FC/PC connectors; Option 25 includes one-meter pigtail with FC/PC termination
• HP-IB interface for remote operation and settings interrogation
• Fiber loop design minimizes power loss variation during adjustment
• Fast automated polarization cycling for high-throughput measurements
– Typical Applications
• Polarization-dependent loss (PDL) characterization
• Polarization state of polarization (SOP) synthesis and generation
• EDFA, single-mode fiber, and polarization-maintaining fiber testing
• Optical isolators, switches, modulators, and coupler evaluation
• Polarization mode dispersion (PMD) statistical behavior emulation
• DWDM component validation
– Compatibility & Integration
Integrates into optical test systems via HP-IB control. FC/PC connector interfaces supported; 81000 series adapter interfaces may be required for alternate connector types. Suitable for applications requiring precise, repeatable polarization control with minimal signal degradation.
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