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          Institute: MPI für Gravitationsphysik     Collection: Laser Interferometry & Gravitational Wave Astronomy     Display Documents



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ID: 59885.0, MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy
Grating Enhanced External Cavity Diode Laser
Authors:Wicht, A.; Rudolf, M.; Huke, P.; Rinkleff, Rolf-Hermann; Danzmann, Karsten
Language:English
Date of Publication (YYYY-MM-DD):2004-01
Title of Journal:Applied Physics B
Volume:78
Issue / Number:2
Start Page:137
End Page:144
Review Status:not specified
Audience:Not Specified
Abstract / Description:We describe a concept for diode lasers with optical feedback. It is based on the combination of two different diode laser concepts: the diode laser with (i) feedback from a grating and (ii) resonant optical feedback from a separate cavity. The goal of our work is to unite the excellent tunability and well known reliability of grating diode lasers with the narrow emission linewidth of diode lasers with resonant optical feedback. Our theoretical description shows that a proper cavity design is essential for this concept. It also provides the means to optimize the cavity geometry. Our setup is based on an AR-coated laser diode emitting at 852nm. It achieves an overall tuning range of 36.4nm and a continuous tuning range of 45.1GHz. A beat note measurement with a diode laser with resonant optical feedback demonstrates a short-term linewidth below 60kHz. Continuous tuning ranges on the order of nanometers and linewidth on the order of kHz seem feasible.
External Publication Status:published
Document Type:Article
Communicated by:Karsten Danzmann
Affiliations:MPI für Gravitationsphysik/Teilinstitut Hannover
MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
Identifiers:ISSN:1432-0649 [online]
DOI:10.1007/s00340-003-1304-6
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