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

Autor:	Marc Sorel, Antonio Perez, Maria Jose Latorre Vidal, Gabor Mezosi, M. Zanola, Alessandro Scirè, Salvador Balle, Guido Giuliani, S. Furst
Rok vydání:	2008
Předmět:	Laser linewidth Heterodyne Materials science Extinction ratio Bistability business.industry Semiconductor ring laser Grating Semiconductor laser theory Laser dynamics Optics Laser mode Optoelectronics business Lasing threshold
Zdroj:	Digital.CSIC. Repositorio Institucional del CSIC instname
ISSN:	0277-786X
Popis:	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. This research was founded by he EU-FP6 ‘IOLOS’ project.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c09840427d1dad65281951aad9d6f17c https://doi.org/10.1117/12.783929 Zobrazit plný text záznamu