HomeOptical PassivesPolarization-Maintaining (PM)PM Planar Lightwave Circuit Module (PLC Module) PM Planar Lightwave Circuit Module (PLC Module) Product Highlights: Polarization-Maintaining Low Excess Loss Wide Operating Temperature Range Excellent Uniformity Low PDL Telcordia GR‐1221‐Core Compliant Categories: Optical Passives, Polarization-Maintaining (PM) Product ID: 1692 Related products PM DWDM Read more CWDM Read more PM WDM Read more