Reduced intermodulation distortion in 1300 nm gain-clamped MQW laser amplifiers

Author

Tiemeijer, L.F. ; Thijs, P.J.A. ; Dongen, T.v. ; Binsma, J.J.M. ; Jansen, E.J. ; van Helleputte, H.R.J.R.

Author_Institution

Philips Optoelectron. Centr, Eindhoven, Netherlands

Volume

7

Issue

3

fYear

1995

fDate

3/1/1995 12:00:00 AM

Firstpage

284

Lastpage

286

Abstract

A 1300 nm gain-clamped DFB multiple quantum well laser amplifier with negligible pass band ripple, 20 dB fiber to fiber gain, and 10 dB reduction in gain saturation is demonstrated. The remaining gain saturation is attributed to longitudinal hole burning. After some modifications the reduction in gain saturation is improved to more than 30 dB for an input signal having the same polarization state as the lasing mode. From these experiments and a theoretical analysis it is concluded that there is a potential for realizing highly linear 1300 nm CATV semiconductor laser amplifiers using gain-clamping with less intermodulation distortion than today´s directly modulated linear semiconductor lasers.<>

Keywords

cable television; distributed feedback lasers; infrared sources; intermodulation distortion; laser modes; optical communication equipment; optical fibre communication; optical fibre polarisation; optical hole burning; optical modulation; optical noise; optical saturation; quantum well lasers; 1300 nm; 20 dB; fiber to fiber gain; gain saturation; gain-clamped DFB multiple quantum well laser amplifier; gain-clamped MQW laser amplifiers; gain-clamping; highly linear 1300 nm CATV semiconductor laser amplifiers; input signal; lasing mode; negligible pass band ripple; polarization state; reduced intermodulation distortion; Fiber lasers; Gain; Intermodulation distortion; Laser modes; Laser noise; Laser theory; Optical fiber polarization; Quantum well devices; Quantum well lasers; Semiconductor lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.372747

Filename

372747