Title :
Cross-phase modulation in a semiconductor laser amplifier determined by a dispersive technique
Author :
Dijaili, Sol P. ; Wiesenfeld, Jay M. ; Raybon, Gregory ; Burrus, Charles A., Jr. ; Dienes, Andrew ; Smith, John Stephen ; Whinnery, John R.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
1/1/1992 12:00:00 AM
Abstract :
Cross-phase modulation in a semiconductor laser diode amplifier is reported. A simple expression for the chirp imparted on a weak signal pulse by the action of a strong pump pulse is derived. A novel dispersive technique for characterizing the resulting nonlinear chirp is introduced and used in the present experiment. A maximum frequency excursion of 16 GHz, due to the cross-phase modulation, was measured. A value of 6 was found for αxpm, which is a factor for characterizing the cross-phase modulation in a similar manner to the conventional linewidth enhancement factor α
Keywords :
nonlinear optics; optical dispersion; optical modulation; optical pumping; phase modulation; semiconductor junction lasers; cross-phase modulation; dispersive technique; maximum frequency excursion; nonlinear chirp; optical dispersion; optical modulation; semiconductor laser amplifier; semiconductor laser diode amplifier; strong pump pulse; weak signal pulse; Chirp modulation; Dispersion; Laser excitation; Optical modulation; Optical pulse generation; Pulse amplifiers; Pulse modulation; Semiconductor lasers; Semiconductor optical amplifiers; Solid lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
