Characteristics of optical fiber WDM with high isolation

Author

Chang, Jin Hyeon ; Jeon, Byung Goo ; Kang, Jae Kwang ; Jung, Jin Ho ; Kim, Yung Kwon

Author_Institution

Dewell Elecom Inc., Seoul, South Korea

Volume

1

fYear

1999

fDate

1999

Firstpage

43

Abstract

A high isolation optical fiber WDM (wavelength division multiplexer) with isolation better than 40 dB was obtained by cascading fused biconic tapered (FBT) optical fiber. The fabricated multiplexer was compared with WDMs produced by a dielectric thin film interference method. The values of isolation and bandwidth for the cascading FBT were calculated analytically. In practice, a coiling method was employed to reduce the number of WDM components. The optical fiber WDM was optimized by calculating the insertion loss and isolation according to the diameter and wind number of the coil. The fabricated optical fiber WDM showed a 40.5 and 41.2 dB of isolation and 0.7 and 0.6 dB of insertion loss for 1310 nm and 1550 nm, respectively

Keywords

multiplexing equipment; optical communication equipment; optical fibre fabrication; wavelength division multiplexing; 0.65 dB; 0.7 dB; 1310 nm; 1550 nm; bandwidth; coiling method; diameter; dielectric thin film interference method; fused biconic tapered optical fiber; high isolation; insertion loss; isolation; optical fiber WDM; wavelength division multiplexer; Bandwidth; Coils; Dielectric thin films; Flyback transformers; Insertion loss; Interference; Optical device fabrication; Optical fibers; Optical losses; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818344

Filename

818344