Title :
Novel self-hybrid mode-locking of semiconductor lasers in an external cavity
Author :
Lee, Bor-Lin ; Lin, Ching-Fuh
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A new mode-locking method called self-hybrid mode-locking is explored. This method uses RF modulation at the sub-harmonic of pulse repetition frequency so that both active and passive mode-locking mechanisms operate in the same gain region without the necessity of additional integrated absorbers. With the same cavity configuration, self-hybrid mode-locking can generate pulses about 2/spl times/ shorter than the traditional active mode-locking.
Keywords :
laser cavity resonators; laser mode locking; optical saturable absorption; semiconductor lasers; RF modulation; active mode-locking; active mode-locking mechanisms; cavity configuration; external cavity; gain region; integrated absorbers; mode-locking method; optical pulse generation; passive mode-locking mechanisms; pulse repetition frequency; self-hybrid mode-locking; semiconductor lasers; sub-harmonic; Absorption; Charge carrier density; Frequency modulation; Laser mode locking; Optical modulation; Optical pulse generation; Pulse modulation; Radio frequency; Semiconductor lasers; Superluminescent diodes;
Journal_Title :
Photonics Technology Letters, IEEE
