Dual-wavelength mode-locked quantum-dot laser, via ground and excited state transitions: Experimental and theoretical investigation

University of Dundee, School of Engineering, Physics and Mathematics, Dundee DD1 4HN, UK.
Optics Express (Impact Factor: 3.49). 06/2010; 18(12):12832-8. DOI: 10.1364/OE.18.012832
Source: PubMed


We report a dual-wavelength passive mode locking regime where picosecond pulses are generated from both ground (lambda = 1263 nm) and excited state transitions (lambda = 1180 nm), in a GaAs-based monolithic two-section quantum-dot laser. Moreover, these results are reproduced by numerical simulations which provide a better insight on the dual-wavelength mode-locked operation.

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Available from: Daniil Nikitichev, Jan 08, 2015
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    • "In this paper we consider the latter feature which appears to be of interest for a wide range of applications including THz generation [14], [15], two color mode-locking [16], [17] and all-optical processing, such as all-optical memory (as demonstrated with another type of twocolor laser diode [18], [19]). These two lasing state QD lasers might therefore provide a two-color source without the need of complex design or setup and with a large frequency splitting. "
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