Gezhi Photonics PM Manual Variable Optical Attenuator (PM VOA) covers broad wavelength from 532nm to 2050nm, built with PM panda fiber design. It is a high-precision manually adjustable fiber attenuator engineered for accurate optical power attenuation control. With ultra-low insertion loss, wide attenuation tuning range and superior polarization extinction ratio, this manual PM VOA is widely deployed in optical communication testing platforms and photonics laboratory measurement systems.

• High Adjustment Precision: 0.02dB fine tuning for ultra-accurate power control
• Wide Attenuation Range: 0.6~60dB / 0.8~60dB optional for all wavebands
• Low Max Insertion Loss: Minimum IL down to 0.6dB (bare fiber version)
• High Extinction Ratio & Return Loss: Min ER up to 20dB, RL ≥50dB
• Wide Working Wavelength: 532nm ~ 2050nm multi-waveband coverage
• High Power Handling: Up to 500mW optical input power
• Rugged Compact Package: Mini 26×18×8mm metal housing
• Stable Temperature Performance: 0~+70℃ operating, -40~+85℃ storage
• Standard PM Panda Fiber Pigtail, customizable connector & fiber length

• Optical Communication System Test & Calibration
• Photonics Laboratory Optical Measurement
• Polarization Maintaining Fiber Test Bench
• Laser Power Attenuation Control (532/1064/1550/2000nm lasers)
• Fiber Sensor & Polarization Experiment Platform

Model Code Format: PMMVOA-1111-2-333-4-5-6-77

• Custom center wavelength & operating bandwidth
• Fast axis blocked / dual axis working polarization design
• Bare fiber, 900μm loose tube pigtail optional
• Multiple fiber length from 0.8m to custom meters
• FC/SC UPC/APC fiber connectors, customized key alignment
• Non-standard package dimension on reques

Gezhi Photonics Co.,Ltd is a professional manufacturer of polarization maintaining fiber components, fused couplers, fiber splitters and passive optical devices. All PM couplers are strictly tested before delivery, stable performance for industrial, lab and communication global customers.