摘要
By inversing the signal and idler in a two-stage noncollinear optical parametric amplifier which is,respectively,pumped by the second harmonic and fundamental wave of femtosecond Ti:sapphire laser at repetition rate of1 kHz,the carrier-envelope phase(CEP)passively stabilized pulses with a tunable wavelength from 1.1 to 1.6 lm are obtained with maximum energy of 95 lJ at 1.3 lm under the pump energy of 500 lJ.The CEP jitter of pulses is 108 mrad measured by an f-2f interferometer.This work demonstrates a new way to efficiently generate tunable near-infrared femtosecond laser pulses with self-stabilized CEP.
By inversing the signal and idler in a two-stagenoncollinear optical parametric amplifier which is, respec-tively, pumped by the second harmonic and fundamentalwave of femtosecond Ti：sapphire laser at repetition rate of1 kHz, the carrier-envelope phase （CEP） passively stabilizedpulses with a tunable wavelength from 1.1 to 1.6 μm areobtained with maximum energy of95 μJat 1.3 μm underthepump energy ofS00 μJ. The CEP jitter of pulses is 108 mradmeasured by anf-2finterferometer. This work demonstratesa new way to efficiently generate tunable near-infraredfemtosecond laser pulses with self-stabilized CEP.
基金
partly supported by the National Key Technology R&D Program of the Ministry of Science and Technology(2012BAC23B03)
National Key Basic Research Program of China(2013CB922401)
the National Natural Science Foundation of China(11074298,60878020)
