Enhanced UV third-harmonic generation in microfibers by controlling nonlinear phase modulations
- 22 August 2019
- journal article
- research article
- Published by Optica Publishing Group in Optics Letters
- Vol. 44 (17) , 4191-4194
Abstract
The influence of nonlinear phase modulations on third-harmonic (TH) conversion in silica microfibers is experimentally demonstrated. By utilizing such influence, enhanced narrow-bandwidth ultraviolet TH is generated at a high signal-to-noise ratio (33 dB) and an average power of several hundred nanowatts. Detailed trends of TH power against input pump power were characterized with peak pump power up to 2.5 kW, and the results agree with predicted features, confirming that harmonic output could be optimized with adaptive control of the phase mismatch.Keywords
Funding Information
- China Scholarship Council (201308440325)
- Natural Science Foundation of Guangdong Province (2018A030313315)
- Royal Society (IE131732)
- Engineering and Physical Sciences Research Council (EP/L01243X/1)
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