Optical switch and LD devices for future optical subscriber loop systems

Author

Matsumoto, Takao ; Nawata, Kiyoshi ; Kikushima, Koji ; Koga, Masafumi

Author_Institution

Transmission Syst. Lab., NTT, Kanagawa, Japan

fYear

1988

fDate

12-15 Jun 1988

Firstpage

6

Abstract

Introduction of optical switches and laser diodes (LDs) to optical subscriber loop systems is discussed. An optical switch for fault testing is presented for upcoming subscriber loop systems. It can connect a pair of probe fibers to any one of 48-channel subscriber-line fibers. Insertion loss in a normal state is 0.79 dB. An LD optical amplifier and LD wavelength selector are discussed as elements for future subscriber loop systems. Characteristics of the devices for wavelength-division-multiplexing transmission are reported

Keywords

frequency division multiplexing; optical communication equipment; optical fibres; optical links; semiconductor junction lasers; subscriber loops; switches; LD devices; fault testing; laser diodes; optical amplifier; optical subscriber loop systems; optical switches; probe fibres; subscriber line fibres; wavelength selector; wavelength-division-multiplexing transmission; Diode lasers; Optical devices; Optical fiber devices; Optical fiber subscriber loops; Optical fiber testing; Optical switches; Probes; Stimulated emission; Subscriber loops; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on

Conference_Location

Philadelphia, PA

Type

conf

DOI

10.1109/ICC.1988.13525

Filename

13525