Optical Fiber Family Maintains Polarization August 2001 Issue Published Date: August 01, 2001
Superb control over the transmission of polarized light signals as they are guided and managed by opto components is claimed for a new family of optical fibers. The TruePhase family of polarization-maintaining optical fibers come in three versions. The TruePhase 14-Raman fibers are designed specifically for Raman pump lasers used in next-generation, 40-Gbps systems. The TruePhase 1480 is designed for 1480 pump lasers used in erbium-doped fiber amplifiers. With a cutoff of 1,380 to 1,470 nm, this application-specific design is said to ensure optimal performance at 1,480 nm. And the TruePhase 1550 is said to guide light from the coherent source lasers into external modulators. When combined with a phase-sensitive detection system, receiver sensitivity is said to be greatly improved and longer transmission distances permitted. LUCENT TECHNOLOGIES, Norcross, GA. (800) 372-2447.
