Title :
Spontaneous noise effect on mode-locked external cavity lasers with chirped grating
Author :
Dogru, Nuran ; Ozyazici, M. Sadettin
Author_Institution :
Dept. of Electr. & Electron., Gaziantep Univ., Gazientep, Turkey
Abstract :
The noise of mode-locked hybrid soliton pulse source (HSPS) is analyzed by couple-mode equations including spontaneous emission noise. Relative intensity noise (RIN) is calculated using numerical solutions of these equations. It is found that a noise peak in the RlN spectrum locates at the fundamental frequency and this peak is a little broader. In this range high noise affects the operation of device, so transform limited pulses are not obtained. It is also found that RIN of chirped gratings is low compared to unchirped gratings.
Keywords :
Bragg gratings; chirp modulation; coupled mode analysis; laser cavity resonators; laser mode locking; laser noise; optical solitons; quantum well lasers; semiconductor device models; semiconductor device noise; chirped grating; couple-mode equations; hybrid soliton pulse source; mode-locked external cavity lasers; relative intensity noise; spontaneous noise effect; Bragg gratings; Chirp; Equations; Fiber gratings; Frequency; Laser mode locking; Laser noise; Optical noise; Optical pulses; Semiconductor device noise;
Conference_Titel :
Advanced Optoelectronics and Lasers, 2003. Proceedings of CAOL 2003. First International Conference on
Print_ISBN :
0-7803-7948-9
DOI :
10.1109/CAOL.2003.1250570
