New self-starting mode locked laser with active phase control

Anton Ryabtsev; Dmitry Pestov; Andrey Bordenyuk; Luke Goodman; Vadim V. Lozovoy; Igor Samartsev; Valentin Gapontsev

doi:10.1117/12.2511805

4 March 2019 New self-starting mode locked laser with active phase control

Anton Ryabtsev, Dmitry Pestov, Andrey Bordenyuk, Luke Goodman, Vadim V. Lozovoy, Igor Samartsev, Valentin Gapontsev

Proceedings Volume 10899, Components and Packaging for Laser Systems V; 108990T (2019) https://doi.org/10.1117/12.2511805
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

We report on a commercial laser system based on a Yb fiber oscillator with cross-filter mode lock (CFML) mechanism that is integrated with a programmable pulse shaper. The laser is self-starting and stable in a wide temperature range, 15- 50°C, resilient to vibrations and shock. It can serve as a seed for high-power femto- and pico- second systems or be implemented as a standalone unit, as illustrated in this paper. The master oscillator is outputting strongly chirped pulses, with the spectrum centered at 1030 nm and having the full bandwidth of up to 90 nm. It operates at 11 MHz repetition rate, with the pulse energy of at least 10 nJ at the output. When equipped with an additional power amplification module, the oscillator yields the same spectral output and repetition rate, but the pulse energy can be increased up to 400 nJ. The laser output is fully coherent, and pulses are compressible down to the transform limit (TL). For demanding femtosecond applications, the laser system is being configured with a static grating compressor and a compact spectral phase shaper. The pulse shaper utilizes a liquid-crystal spatial light modulator for active phase control which enables high-finesse pulse compression as well as arbitrary manipulation of the pulse waveform. With the use of the pulse shaper, the oscillator output is compressed down to 57 fs, which is within 7% from the TL pulse duration, 53 fs, calculated from the experimental laser spectrum.

Conference Presentation

Citation Download Citation

Anton Ryabtsev, Dmitry Pestov, Andrey Bordenyuk, Luke Goodman, Vadim V. Lozovoy, Igor Samartsev, and Valentin Gapontsev "New self-starting mode locked laser with active phase control", Proc. SPIE 10899, Components and Packaging for Laser Systems V, 108990T (4 March 2019); https://doi.org/10.1117/12.2511805

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