Carrier-envelope phase stabilized high temporal contrast femtosecond laser source at 1053 nm

Abstract

We demonstrate a carrier-envelope phase (CEP) stabilized high temporal contrast generator at 1053 nm for the first time. The device relies on a collinear optical parametric amplifier (OPA) followed by a frequency-doubling crystal. It is driven by a femtosecond laser source centered at 800 nm and finally generates CEP passively stabilized pulses with an energy of 130 µJ and a FWHM for the spectrum of 40 nm with 46 fs pulse duration at 1053 nm. The temporal contrast reaches >10 11 at a few picoseconds before the main pulse.

High amplified spontaneous emission contrast of 1011 in a Nd:glass laser based on a hybrid double chirped pulse amplification scheme

“…High amplified spontaneous emission contrast of 1011 in a Nd:glass laser based on a hybrid double chirped pulse amplification scheme the pump source [17]. This device shifts the wavelength of the pulse from 800 nm to 1053 nm, which matches with the gain spectrum of Nd:glass; further, the temporal contrast of the generated 1053 nm pulse is very high (better than 10 11 ).…”

High temporal contrast 1053 nm laser source based on optical parametric amplification and second-harmonic generation

“…As a seed source, the beam stability and quality are adequate. Compared to other works driven by 800 nm laser [ 22 , 23 ] , parasitic third-order nonlinear effects can be reduced because of the scaling of the critical power for self-focusing with λ 2[ 24 ] . Despite the narrow bandwidth of the Yb laser, spectral broadening and wavelength tuning can be achieved by OPA.…”

Generation of high-contrast, joule-level pulses based on Nd:glass chirped pulse amplification laser

“…In the past several years, we have developed a new pulse cleaning device which combines three cascaded fs-OPAs and a second harmonic generation (SHG) device to generate the high-contrast seed with sub-mJ energy [9, 10] . Based on the high-contrast seed pulses, we also have demonstrated high-contrast amplified outputs at the energy level of 100 mJ [10, 11] .…”