Title :
Self-pulsation in multisection laser diodes with a DFB reflector
Author :
Leem, Young Ahn ; Yee, Dae-Su ; Sim, Eundeok ; Kim, Sung-Bock ; Kim, Dong Churl ; Park, Kyung Hyun
Author_Institution :
Opt. Devices Res. Dept., Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
A novel self-pulsation regime is observed in multisection laser diodes which consist of a loss-coupled distributed-feedback (DFB) section, a phase control section, and gain sections, where 10-GHz self-pulsation due to compound cavity mode beating has been reported with the DFB section operated as a single-mode laser. When the DFB section is below threshold current, the devices give the self-pulsation in a very wide operating range. We attribute the pulsation to passive mode-locking and also confirm that this structure is applicable to 40-GHz operation
Keywords :
distributed feedback lasers; laser cavity resonators; laser mode locking; laser modes; optical pulse generation; phase control; semiconductor lasers; 40 GHz; DFB reflector; cavity mode beating; distributed-feedback section; gain section; multisection laser diodes; passive mode-locking; phase control section; self-pulsation; single-mode laser; threshold current; Diode lasers; Distributed Bragg reflectors; Distributed feedback devices; Holographic optical components; Holography; Laser mode locking; Optical variables control; Optical waveguides; Phase control; Waveguide lasers; Distributed-feedback (DFB) reflector; optical pulse generation; passive mode-locking; self-pulsation; semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.870186
