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arXiv · 1709.07954

1.8-THz-wide optical frequency comb emitted from monolithic passively mode-locked semiconductor quantum-well laser

Mu-Chieh Lo·Robinson Guzmán·Muhsin Ali·Rui Santos·Luc Augustin·Guillermo Carpintero
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Abstract

We report on an optical frequency comb with 14nm (~1.8 THz) spectral bandwidth at -3 dB level that is generated using a passively mode-locked quantum-well (QW) laser in photonic integrated circuits (PICs) fabricated through an InP generic photonic integration technology platform. This 21.5-GHz colliding-pulse mode-locked laser cavity is defined by on-chip reflectors incorporating intracavity phase modulators followed by an extra-cavity SOA as booster amplifier. A 1.8-THz-wide optical comb spectrum is presented with ultrafast pulse that is 0.35-ps-wide. The radio frequency beat note has a 3-dB linewidth of 450 kHz and 35-dB SNR.

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Mu-Chieh Lo, Robinson Guzmán, Muhsin Ali, Rui Santos, Luc Augustin, Guillermo Carpintero. 2017-09-22. 1.8-THz-wide optical frequency comb emitted from monolithic passively mode-locked semiconductor quantum-well laser. https://doi.org/10.1364/ol.42.003872

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