Incoherent bidirectional fiber-optic code division multiple access networks

Author

Kim, Sangin ; Kang, Minjeong ; Park, Soojin ; Choi, Youngbok ; Han, Sangpil

Author_Institution

Access Network Lab., Korea Telecom, Taejeon, South Korea

Volume

12

Issue

7

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

921

Lastpage

923

Abstract

We propose bidirectional fiber-optic code division multiple access networks based on the multiwavelength optical code, and the feasibility of the network is demonstrated experimentally. Encoders/decoders are implemented with AWG routers and fiber delay lines, and incoherent light sources are used. Due to the loop-back configuration of the AWG router-based encoder/decoder, bidirectional transmission is possible in the proposed access network. Decoding of broad-spectrum encoded signals (/spl Delta/f=1.6 THz, /spl Delta//spl lambda/=12.8 nm at 1550 nm) after transmission over a 40-km fiber link was performed with dispersion compensation.

Keywords

code division multiple access; compensation; decoding; diffraction gratings; encoding; optical arrays; optical fibre dispersion; optical fibre subscriber loops; optical waveguides; telecommunication network routing; 1550 nm; 40 km; AWG router-based encoder; AWG routers; access network; bidirectional transmission; broad-spectrum encoded signal decoding; decoders; dispersion compensation; encoders; fiber delay lines; incoherent bidirectional fiber-optic code division multiple access networks; incoherent light sources; loop-back configuration; multiwavelength optical code; Arrayed waveguide gratings; Decoding; Delay lines; Encoding; Light sources; Multiaccess communication; Optical fiber networks; Optical receivers; Optical transmitters; Optical waveguides;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.853555

Filename

853555