Accession Number : ADD015756

Title :   Method and Apparatus For Polarization-Maintaining Fiber Optical Amplification With Orthogonal Polarization Output.

Descriptive Note : Patent Application, Filed 15 Mar 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Duling, Irl N ; Esman, Ronald D

Report Date : 15 Mar 1993

Pagination or Media Count : 38

Abstract : A single-polarization fiber optical amplifier and corresponding method is provided capable of amplifying an optical input signal by a fiber optic amplifier constructed of fiber which may be non-polarization-maintaining. The single-polarization fiber optical amplifier provides a direction-selective coupler which receives an optical input at a first port and outputs an optical output at a second port. A fiber optic amplifier is operatively connected to the direction-selective coupler at a bidirectional port for amplifying the optical input. A retro-reflecting orthogonal polarization converter is operatively connected to the fiber optic amplifier, reflecting the amplified optical input from the fiber optic amplifier in a return direction through the fiber optic amplifier and in an orthogonal polarization to the amplified optical input. The direction-selective coupler outputs the reflected amplified orthogonal optical input at the second port as the optical output of the direction-selective coupler

Descriptors :   *AMPLIFIERS, *FIBER OPTICS, *PATENT APPLICATIONS, CONVERTERS, COUPLERS, INPUT, OPTICS, OUTPUT, POLARIZATION, SIGNALS

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE