Accession Number : ADA132908

Title :   Multiwavelength Bidirectional Coupler-Decouplers.

Descriptive Note : Interim rept. no. 2, 1 Nov 82-30 Apr 83,

Corporate Author : HUGHES RESEARCH LABS MALIBU CA

Personal Author(s) : Myer,Jon ; Yen,H W

PDF Url : ADA132908

Report Date : May 1983

Pagination or Media Count : 27

Abstract : This ia an exploratory program to develop, fabricate and test a family of active and passive, single and two-fiber, fiber optic multiwavelength, bidirectional, coupler-decoupler modules. The goal of the contract is to have each member of the coupler-decoupler (multiplexer-demultiplexer) family be capable of coupling energy into, and decoupling energy out of, a single optical transmission line, using a minimum of four wavelengths for the simultaneous full duplex transmission of a minimum of four optical channels. The coupler-decoupler will be designed for low throughput loss ( 5 dB per channel, per single pass) and minimum crosstalk (no more than -35 dB of the received optical signal). The modules fabricated during the program will be evaluated for their ability to meet military environmental requirements, particularly with respect to temperature. The approach uses the miniature planar Rowland spectrometer configuration recently developed at Hughes Laboratories (HRL) for NASA as the basic building block for constructing the coupler-decoupler required for this program, eliminating the need for collimating optics, prisms, or thin-film filters. (Author)

Descriptors :   *Coupling(Interaction), *Multichannel communications, *Infrared communications, *Fiber optics transmission lines, *Multiplexing, *Gratings(Spectra), Duplexers, Light transmission, Optical properties, Etching, Infrared filters, Multiple operation, Replicas, Quartz, Thin films, Single crystals, Energy, Low loss, Research facilities, Crosstalk, Modular construction, Prisms(Optics), Collimators, Transmission lines, Channels, Grooving, Silicon

Subject Categories : Fiber Optics and Integrated Optics
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE