Journal
OPTICS LETTERS
Volume 42, Issue 12, Pages 2318-2321Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.42.002318
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Funding
- Regional Research DIFRAGEOS projects [CAM S2013/ICE-3004]
- DiDaCTIC: Desarrollo de un sistema de comunicaciones inalambrico en rango THz integrado de alta tasa de datos [TEC2013-47753-C3]
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A record low-repetition rate from an on-chip monolithic InP extended cavity colliding-pulse mode-locked laser is experimentally reported. The device, fabricated in generic InP-based active-passive integration technology, makes use of integrated mirrors to enable its use as a building block within a photonic integrated circuit. This structure allows us to generate an electrical frequency comb with mode spacing of 1 GHz, determined by the 40.5 mm long resonator. Passive and hybrid mode-locking regime conditions are experimentally demonstrated. In the passive regime, an electrical beat tone at the fundamental repetition rate with an electrical linewidth (LW) of 398 kHz and a signal-to-noise ratio (SNR) >30 dB is measured. In the hybrid regime, the optical comb is locked to a continuous wave signal source, improving the LW of the generated signal and the SNR > 40 dB. (C) 2017 Optical Society of America
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