1050nm high-power single cavity dual comb femtosecond pulse laser at 1GHz 100fs 2W

1050nm high-power single cavity dual comb femtosecond pulse laser at 1GHz 100fs 2W

Overview

1050nm high-power single cavity dual comb femtosecond pulse laser at 1GHz 100fs 2W

This 1050nm high-power single cavity dual comb femtosecond pulse laser (1 GHz) is an ideal tool for testing dual comb spectra and ranging. The system generates a pair of mode-locked femtosecond lasers (optical frequency combs) with slightly different pulse repetition rates. In the time domain, optical delay rapidly sweeps through the range of 1 nanosecond at a very high speed. In the frequency domain, the beat sound between each pair of comb lines is generated through heterodyne detection. Due to the high repetition rate, high power per comb line was obtained. Through a novel shared cavity structure, our system can easily achieve ultra-low noise in free running operation. Moreover, laser pairs are passively stable and exhibit highly correlated intensity, timing, and phase noise between two comb like structures. Due to having only one laser cavity and no high-speed locking electronics or optical amplification, most of the complexity of traditional dual comb and ASOPS systems is eliminated, while providing small footprint and excellent performance.

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