PRODUCTS HOME FBT Based  - FBT Couplers - Single Window Wideband Coupler - Dual Window Wideband Coupler - Three Window Wideband Coupler - Ultra Flat DWC 50/50 - Compact Size SWC - Compact & Ultra High Performance SWC - Compact Size DWC - 1x3 Single Window Windeband Splitter - 1x4 Single Fused Single Window Wideband Splitter - 1x4 Single Fused Dual Window Wideband Splitter - Ultralow PDL Single Window Wideband Coupler - Multimode Coupler - Polarization Maintaining Coupler  - FBT WDMs - Wavelength Division Multiplexer (980/1030 nm) - Wavelength Division Multiplexer (980/1060 nm) - Wavelength Division Multiplexer (1060/1550 nm) - Wavelength Division Multiplexer (980/1550 nm) - Wavelength Division Multiplexer (1310/1550 nm) - Wavelength Division Multiplexer (1480/1550 nm) Micro-Optics Based  - Optical Add/Drop Multiplexer - 50GHz Optical Add/Drop Multiplexer (1x2) - 50GHz Optical Add/Drop Multiplexer (2x2) - 50GHz Optical Add/Drop Multiplexer (3x3) - 100GHz Optical Add/Drop Multiplexer (1x2) - 100GHz Optical Add/Drop Multiplexer (2x2) - 100GHz Optical Add/Drop Multiplexer (3x3) - 200GHz Optical Add/Drop Multiplexer (1x2) - 200GHz Optical Add/Drop Multiplexer (2x2) - 200GHz Optical Add/Drop Multiplexer (3x3)  - Micro-Optics Modules - 8 Channel DWDM Module - 4 & 8 Channel CWDM Module - Pump / Signal WDM - 1310/1550 WDM - High Isolation 1310/1550 WDM - 1310+1490/1550nm Filtered WDM - Hi Isolation 1310+1490/1550nm Filtered WDM - C Band and L Band WDM - C Band Red/Blue Pass WDM - L Band Red/Blue Pass WDM - L Band Supervisory Channel WDM  - Isolators - Polarization Insensitive Isolator (Single Stage) - Polarization Insensitive Isolator (Dual Stage) - Faraday Rotator Mirrors - Tap/Isolator Hybrid - WDM/Isolator Hybrid - Gain Flattening Filter - Gain Flattening Filter and Isolator Hybrid - 3-ports Polarization Insensitive Circulator PM Micro-Optics - Polarization Maintaining Coupler - PM DWDM Add/Drop - PM Isolator - PM Patch Cord High Power - Pump Combiner - HIgh Power Isolator (HPISO) - High Power PM Isolator - High Power Collimator Equipment - ViewConn: Fiber Optic Connector End Face Inspection & Cleaning - ViewConn: VC6-OPM Power Meter - CI-1000 Fiber-Optic Connector VIdeo Inspector Chiral Photonics - Helica™ Polarizer - Helica™ Coupler - Helica™ Sensor - Microfabrication       Address: Photonics-USA 21815 3rd Dr. SE Bothell, WA 98021 United States of America Phone: +1 (970) 372-5954 Fax: +1 (303) 223-3417 Email: sales@photonics-usa.com		Micro-Optics Based Components > Overviews In fiber optics, polarization-maintaining optical fiber (PMF or PM fiber) is optical fiber in which the polarization of linearly-polarized light waves launched into the fiber is maintained during propagation, with little or no cross-coupling of optical power between the polarization modes. Maintaining polarization is important in modern telecommunication systems and in various other special applications of fiber optics. Polarization-maintaining optical fibers are used in special applications, such as in fiber optic sensing, interferometry and quantum key distribution. They are also commonly used in telecommunications for the connection between a source laser and a modulator, since the modulator requires polarized light as input. They are rarely used for long-distance transmission, because PM fiber is expensive and has higher attenuation than singlemode fiber. PM DWDM Add/Drop PM Isolator PM Patch Cord     Applications: Broadband telecommunication systems, DWDM multiplexing, CATV system; Features: 50/100/200 GHz channel spacing are available; low insertion loss and PDL; high channel isolation; high stability and reliability without temperaturn control; optical path epoxy free. [... more] Applications: EDFA, CATV fiber optic link, WDM and DWDM system, Fiber optic instruments, Transmitters and fiber laser Features:High isolation, low insertion loss, wide operating wavelength, environmental stability and reliability, wide operating temperature [... more] PM patch cord with choices of wavelengths, lengths, packaging, and connectors. Fiber type Nufem PM fiber otherwise specified. [... more]
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