Title :
An investigation into femtosecond pulse formation in a continuously-pumped passively-mode-locked CPM ring dye laser
Author :
Williams, J.A.R. ; French, P.M.W. ; Taylor, J.R.
Author_Institution :
Imperial Coll., London, UK
fDate :
8/1/1990 12:00:00 AM
Abstract :
A detailed experimental investigation of the formation of ultrashort pulses in a CW-pumped passively mode-locked CPM dye laser is described. It is found that it takes ~104 round trips for the circulating energy in the cavity to reach the level at which the passive mode-locking process is initiated, and a subsequent ~103 round trips for the ultrashort pulse evolution to reach a steady state. Sequences of autocorrelation profiles and spectra are presented showing the dynamic pulse evolution, and the influence of intracavity group velocity dispersion on pulse formation is examined
Keywords :
dye lasers; high-speed optical techniques; laser mode locking; optical pumping; ring lasers; CW-pumped passively mode-locked CPM dye laser; autocorrelation profiles; circulating energy; dynamic pulse evolution; femtosecond pulse formation; intracavity group velocity dispersion; ring dye laser; spectra; steady state; ultrashort pulses; Autocorrelation; Laser excitation; Laser mode locking; Laser theory; Optical pulse generation; Optical pulses; Pump lasers; Ring lasers; Steady-state; Ultrafast optics;
Journal_Title :
Quantum Electronics, IEEE Journal of
