Title :
Picosecond pulse generation in multisection diode lasers by gain-switching and Q-switching
Author :
White, I.H. ; Williams, K.A. ; Burns, D. ; Sibbett, W. ; Vasil, P.P. ; Fice, M.J.
Author_Institution :
Sch. of Phys., Bath Univ., Claverton Down, UK
fDate :
11/3/1993 12:00:00 AM
Abstract :
The authors review methods of picosecond pulse generation by Q-switching and gain-switching in multicontact diode lasers. For the case of gain-switching, it is shown that the use of multicontact lasers can allow the generation of gain switched pulses with reduced linewidth when compared with conventional devices. By using both direct radio frequency electrical drive and saturable loss in multicontact Q-switched devices, monomode picosecond pulses can be generated at very much higher optical powers with improved pulse shape and jitter
Keywords :
Q-switching; distributed feedback lasers; high-speed optical techniques; optical losses; optical saturable absorption; semiconductor lasers; spectral line breadth; Fabry-Perot laser diodes; Q-switching; direct RF electrical drive; gain-switching; improved jitter; improved pulse shape; monomode picosecond pulses; multicontact DFB lasers; multisection diode lasers; picosecond pulse generation; reduced linewidth; saturable loss; self-Q-switching;
Conference_Titel :
Ultra-Short Optical Pulses, IEE Colloquium on
Conference_Location :
London
