Frequency comb with 100 GHz spacing generated by an asymmetric MQW passively mode-locked laser.
OPTICS LETTERS(2020)
Abstract
A L-band two-section AlGaInAs/InP asymmetric multiple quantum well (QW) passively mode-locked laser has been used to generate a frequency comb with a 100 GHz spacing at a central wavelength of 1610 nm. The comb contains 10 optical lines within a -3 dB bandwidth of 8.05 nm and 34 optical lines within a -20 dB bandwidth of 30 nm. The mode-locked pulse duration was 440 fs. To the best of our knowledge, this is the shortest pulse duration from any directly electrically pumped QW semiconductor mode-locked laser. (C) 2020 Optical Society of America
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Key words
ghz spacing,frequency,laser,asymmetric mqw,mode-locked
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