Journal
OPTICS LETTERS
Volume 40, Issue 1, Pages 77-80Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.40.000077
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- IOP (Innovatiegerichte Onderzoeksprogramma's) Photonic Devices program, Rijksdienst voor Ondernemend Nederland, Dutch Ministry of Economic Affairs [IPD12015]
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A mode-locked extended cavity quantum well ring laser at 1.58 mu m with a repetition rate of 2.5 GHz in the form of a photonic integrated circuit is presented. The device is realized using InP-based active-passive integration technology. The 33 mm long cavity contains gain, saturable absorption, and passive waveguide sections as well as phase shifter sections to enable fine tuning of the spectral position of the lasing modes. Passive and hybrid mode-locked operation, along with the wavelength tuning of the laser modes, are experimentally demonstrated. In the passive mode-locking regime, a beat signal at the fundamental round trip frequency with a 3 dB bandwidth of 6.1 kHz is produced on a fast photo diode. (C) 2014 Optical Society of America
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