Title :
Asymmetric modulation of a laser as a weak optical ratchet
Author :
Preda, C.E. ; Ségard, B. ; Glorieux, P.
Author_Institution :
Univ. de Lille 1, Lille
Abstract :
In the present experiments, a Nd3+:YVO4 diode-pumped laser below threshold is subjected to an asymmetric change of its excitation conditions, via a triangular time-periodic modulation of its pump parameter such that the average value of the pump is close to, but always below threshold. The asymmetry of the modulation has a dramatic influence on the system response: a slow up-rising sawtooth does trigger laser pulse emission, while a fast up-rising one does not.
Keywords :
semiconductor lasers; asymmetric modulation; diode-pumped laser; triangular time-periodic modulation; weak optical ratchet; Atom lasers; Atom optics; Delay; Fluctuations; Laser excitation; Optical modulation; Optical pulses; Pulse modulation; Pump lasers; Spontaneous emission;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386955
