Intensity noise in mode-locked external cavity laser

Author

Dogru, Nuran ; Ozyazici, M. Sadettin

Author_Institution

Dept. of Electr. & Electron., Gaziantep Univ., Turkey

fYear

2004

fDate

6-9 Sept. 2004

Firstpage

115

Lastpage

118

Abstract

Effect of spontaneous and carrier noise on mode-locked HSPS utilizing linearly chirped fiber Bragg grating is investigated by using coupled mode-equations. It is found that transform-limited pulses are generated over a wide tuning range without noise and with low noise level. However, mode-locking is difficult to achieve for large value of spontaneous coupling factor and some value of rf and dc currents because of increasing noise. High noise introduce noise peak in the relative intensity noise (RIN) spectrum making transform-limited pulses unobtainable. Hence, proper mode-locking range that transform-limited pulses are generated reduces.

Keywords

Bragg gratings; chirp modulation; coupled mode analysis; laser cavity resonators; laser mode locking; laser noise; optical pulse generation; optical solitons; quantum well lasers; semiconductor device noise; HSPS; carrier noise; coupled mode-equations; hybrid soliton pulse source; linearly chirped fiber Bragg grating; mode-locked external cavity laser; relative intensity noise; spontaneous coupling factor; spontaneous noise; transform-limited pulse generation; Fiber lasers; Frequency; Laser mode locking; Laser noise; Laser tuning; Noise level; Optical noise; Optical pulses; Semiconductor device noise; Solitons;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser and Fiber-Optical Networks Modeling, 2004. Proceedings of LFNM 2004. 6th International Conference on

Print_ISBN

0-7803-8429-6

Type

conf

DOI

10.1109/LFNM.2004.1382438

Filename

1382438