PM Dense WDM

The Polarization Maintaining Dense Wavelength Division Multiplexer series is designed and manufactured to Telcordial standard and ITU standard, the PM DWDM can preserve the polarization of optical signals. The devices use environmentally stable Thin Film Filters and advanced packaging technology to achieve a wide passband, low insertion loss, high channel isolation, excellent environmental stability and high extinction ratio. The Polarization Maintaining Dense WDM  can be used individually to perform a single channel add or drop function or it can be used in DWDM systems and sensor systems.