A 100-channel optical FM six-stage in-line amplifier system employing tunable gain equalizers

Author

Toba, Hiromu ; Nakanishi, Kenji ; Oda, Kazuhiro ; Inoue, Kyo ; Kominato, Toshimi

Author_Institution

NTT Transmission Syst. Lab., Kanagawa, Japan

Volume

5

Issue

2

fYear

1993

Firstpage

248

Lastpage

251

Abstract

A six-cascade in-line amplifier system that utilizes gain equalizers to successfully transmit 100 optical frequency-division-multiplexed (FDM) signals is described. Total net gain of 98 dB is obtained with a gain imbalance of 2.3 dB by employing the Mach-Zehnder filter based tunable gain equalizers; the gain imbalance is 19.3 dB without the equalizers. Bit-error-rate performance of 100-channel FSK signals at 622 Mb/s also confirms the feasibility of the gain equalizers.<>

Keywords

fibre lasers; frequency division multiplexing; frequency shift keying; integrated optics; laser tuning; optical filters; optical links; optical modulation; 100-channel FSK signals; 2.3 dB; 622 Mbit/s; EDFA; Er-doped fibre amplifiers; Mach-Zehnder filter; bit-error-rate performance; gain imbalance; in-line amplifier; net gain; optical FM; optical frequency-division-multiplexed; planar waveguide filters; six-cascade; six-stage; tunable gain equalizers; Equalizers; Frequency shift keying; OFDM; Optical amplifiers; Optical attenuators; Optical filters; Optical transmitters; Semiconductor optical amplifiers; Stimulated emission; Tunable circuits and devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.196020

Filename

196020