A bidirectional optical add-drop multiplexer with gain using multiport circulators, fiber Bragg gratings, and a single unidirectional optical amplifier

Author

Tran, An Vu ; Chae, Chang-Joon ; Tucker, Rodney S.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Vic., Australia

Volume

15

Issue

7

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

975

Lastpage

977

Abstract

We propose and demonstrate a new bidirectional optical add-drop multiplexer (BOADM) with gain based on multiport optical circulators and fiber Bragg gratings. The BOADM incorporates a single unidirectional optical amplifier and can flexibly accommodate asymmetric traffic. The device achieves more than 13 dB of bidirectional gain and has low in-band crosstalk (below -45 dB) and low out-of-band crosstalk (below -30 dB). Moreover, the device removes Rayleigh backscattered light and out-of-band amplified spontaneous emission noise. The power penalty is negligible for all through and add-drop channels in both directions when the BOADM is used in a 6 /spl times/ 10 Gb/s bidirectional wavelength-division-multiplexing transmission system over 80 km of standard single-mode fiber.

Keywords

Bragg gratings; optical circulators; optical communication equipment; optical crosstalk; optical fibre communication; semiconductor optical amplifiers; telecommunication traffic; wavelength division multiplexing; 10 Gbit/s; 60 Gbit/s; 80 km; add-drop channels; asymmetric traffic; bidirectional gain; bidirectional optical add-drop multiplexer; bidirectional transmission system; fiber Bragg gratings; low in-band crosstalk; low out-of-band crosstalk; multiport circulators; optical circulators; out-of-band amplified spontaneous emission noise; single unidirectional optical amplifier; standard single-mode fiber; unidirectional optical amplifier; wavelength-division-multiplexing transmission system; Circulators; Gain; Optical add-drop multiplexers; Optical amplifiers; Optical crosstalk; Optical fiber amplifiers; Optical noise; Semiconductor optical amplifiers; Spontaneous emission; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.813427

Filename

1206780