The Agilent/Keysight 8169A is a precision polarization controller designed to synthesize and manipulate arbitrary polarization states in optical systems with high accuracy and repeatability. It enables deterministic control of light polarization across the C-band and extended wavelength ranges, making it essential for polarization-dependent testing of optical components, fiber systems, and research applications.
Technical Specifications
Wavelength Performance
• Operating range: 1400 nm to 1640 nm (characteristic); guaranteed 1470 nm to 1570 nm
• Insertion loss: 45 dB (1530–1560 nm); > 40 dB (1470–1570 nm); > 30 dB (1400–1640 nm)
• Return loss: > 60 dB (individual reflections); > 55 dB (total reflection, characteristic)
• Output accuracy and repeatability: ±0.09° on Poincaré Sphere
• Angular repeatability after Save/Recall: ±0.09°
• Wavelength dependence: ±0.1°/nm (guaranteed 1470–1570 nm)
• Adjustment resolution: 0.18° (360°/2048 encoder positions)
Optical Architecture
• Linear polarizer (LP) followed by independently rotatable quarter-waveplate (QWP) and half-waveplate (HWP)
• Zero-order waveplate mechanical positioning for deterministic polarization synthesis
• Predeterministic algorithms for controlled state transitions on Poincaré Sphere
– Key Features
• Single-mode fiber input/output with optional pigtailed configuration (Option 020)
• Connector options: SC, ST, FC/PC, D4, DIN, and angled/straight contact variants
• Fine angular adjustment accuracy: minimum step size > ±0.09°
• Low wavelength-dependent drift enables stable operation across broad spectral ranges
– Typical Applications
• Optical component testing and characterization
• Fiber optic system validation
• Polarization-dependent loss and gain measurements
• Research and development in photonics
– Compatibility & Integration
Dimensions: 10 cm × 42.6 cm × 44.5 cm (3.9 in × 16.8 in × 17.5 in); Weight: 9 kg (20 lbs). Multiple connector and pigtail configurations enable integration into diverse test benches and automated systems.
