Experimental analysis of the optical spectra of directionally bistable semiconductor ring lasers

Maria Jose Latorre Vidal; Sandor Furst; Gabor Mezosi; Marco Zanola; Marc Sorel; Antonio Perez; Alessandro Scirè; Salvador Balle; Guido Giuliani

doi:10.1117/12.783929

8 May 2008 Experimental analysis of the optical spectra of directionally bistable semiconductor ring lasers

Maria Jose Latorre Vidal, Sandor Furst, Gabor Mezosi, Marco Zanola, Marc Sorel, Antonio Perez, Alessandro Scirè, Salvador Balle, Guido Giuliani

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Proceedings Volume 6997, Semiconductor Lasers and Laser Dynamics III; 699725 (2008) https://doi.org/10.1117/12.783929
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

The optical spectrum of monolithic Semiconductor Ring Lasers (SRLs) is measured simultaneously for both lasing directions with a grating-based OSA, in the regimes of bidirectional and unidirectional operation. In the unidirectional operation regime the SMSR is larger than 25 dB, and the directional extinction ratio (i.e., the ratio of the power emitted in the two opposite directions) is larger than 20 dB. The influence of the current injected in the active output waveguides that act as SOAs is outlined. In the unidirectional regime the linewidth of the SRL is measured by an heterodyne technique, revealing linewidth values around 2 MHz.

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Maria Jose Latorre Vidal, Sandor Furst, Gabor Mezosi, Marco Zanola, Marc Sorel, Antonio Perez, Alessandro Scirè, Salvador Balle, and Guido Giuliani "Experimental analysis of the optical spectra of directionally bistable semiconductor ring lasers", Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 699725 (8 May 2008); https://doi.org/10.1117/12.783929

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KEYWORDS

Semiconductor lasers

Semiconductors

Waveguides

Optical fibers

Switching

Bistable lasers

Heterodyning

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