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Title

Linewidth of monolithic semiconductor ring lasers

AuthorsGiuliani, Guido; Scirè, Alessandro ; Sorel, Marc; Donati, Silvano
KeywordsSemiconductor ring laser
Laser linewidt
Laser dynamics
Spontaneous emission
Laser model
Issue Date2006
PublisherThe International Society for Optics and Photonics
CitationProceedings of SPIE 6184: 640-647 (2006)
AbstractIn this work we numerically calculate the linewidth of a single–mode monolithic Semiconductor Ring Laser (SRL) operating in the unidirectional regime. A new expression for the SRL linewidth is derived from the conventional Henry’s formula, and the importance of different physical parameters is discussed. In particular, the linewidth is mainly determined by the SRL diameter, because the waveguide bending loss have a very strong dependence on the diameter. We show that circular SRLs with diameter smaller than 180 µm are unlikely to be operated CW. As a general rule, the linewidth decreases for increasing SRL diameter, and it varies from 15 MHz for 200 µm diameter down to 1 MHz for 2000 µm diameter.
DescriptionEn: Semiconductor Lasers and Laser Dynamics II; Daan Lenstra, Markus Pessa, Ian H. White
URIhttp://hdl.handle.net/10261/47491
ISSN0277-786X
Appears in Collections:(IFISC) Artículos
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