A dual-wavelength amplifier that enables the simultaneous chirped-pulse amplification of femtosecond 1562 nm pulses and continuous wave 1064 nm radiation for applications in difference frequency generation

作者：Krzempek Karol; Sobon Grzegorz; Sotor Jaroslaw; Abramski Krzysztof

来源：Laser Physics Letters, 2016, 13(10): 105107.

DOI：10.1088/1612-2011/13/10/105107

• fiber amplifier
• PPLN crystal
• difference frequency generation

We present the first demonstration of a chirped-pulse amplification system that enables the simultaneous amplification of femtosecond pulses from the erbium band and continuous wave radiation centered at 1064 nm. The setup generated 470 fs laser pulses, centered at 1562 nm, with an average output power of 590 mW. By exploiting the unique dual-wavelength design an additional gain of 18.08 dB was achieved for the auxiliary 1064 nm seed signal required in the frequency conversion part of the setup. The usability of the constructed source was verified by setting up a difference frequency generation experiment in which the unique characteristics of the mode-locked laser pulses were transferred into the mid-infrared wavelength region.

• 出版日期2016-10