Title :
Simulation of high-power pulse generation due to modelocking in long multisection lasers
Author :
Hasler, K. -H ; Klehr, A. ; Wenzel, H. ; Erbert, G.
Author_Institution :
Ferdinand-Braun-Inst. fur Hochstfrequenztechnik, Berlin, Germany
fDate :
4/8/2005 12:00:00 AM
Abstract :
The dynamic behaviour of long monolithic modelocked lasers for the emission wavelength 1.06 μm containing an active gain section and a passive cavity section was simulated. Numerical tools have been used to solve the travelling wave and carrier rate equations taking into account the effect of gain dispersion. Different configurations and arrangements including an absorber section and a section with a DBR were studied and compared. Best pulses are achieved with a configuration having a saturable-absorber section at the front facet. Peak powers of more than 5 W, pulse energies greater then 15 pJ and time-bandwidth products less than 0.5 are obtained by optimising the resonator configuration.
Keywords :
distributed Bragg reflector lasers; laser cavity resonators; laser mode locking; optical pulse generation; optical saturable absorption; quantum well lasers; semiconductor device models; 1.06 micron; InGaAs; absorber section; active gain section; carrier rate equations; dynamic behaviour; gain dispersion; high-power pulse generation; long monolithic modelocked lasers; long multisection laser modelocking; passive cavity section; resonator configuration; saturable-absorber section; time-bandwidth products; travelling wave;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:20045038
