Title :
Intensity noise in mode-locked external cavity laser
Author :
Dogru, Nuran ; Ozyazici, M. Sadettin
Author_Institution :
Dept. of Electr. & Electron., Gaziantep Univ., Turkey
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;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling, 2004. Proceedings of LFNM 2004. 6th International Conference on
Print_ISBN :
0-7803-8429-6
DOI :
10.1109/LFNM.2004.1382438
