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Broad area diode laser with on-chip transverse Bragg grating stabilized in an off-axis external cavity

  • The emission characteristics of a novel, specially designed broad area diode laser (BAL) with on-chip transversal Bragg resonance (TBR) grating in lateral direction were investigated in an off-axis external cavity setup. The internal TBR grating defines a low loss transversal mode at a specific angle of incidence and a certain wavelength. By providing feedback at this specific angle with an external mirror, it is possible to select this low loss transverse mode and stabilize the BAL. Near diffraction limited emission with an almost single lobed far field pattern could be realized, in contrast to the double lobed far field pattern of similar setups using standard BALs or phase-locked diode laser arrays. Furthermore, we could achieve a narrow bandwidth emission with a simplified setup without external frequency selective elements. (C) 2014 Optical Society of America

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Author:Christof Zink, Mario NiebuhrORCiDGND, Andreas Jechow, Axel Heuer, Ralf Menzel
ISSN:1094-4087 (print)
Pubmed Id:
Parent Title (English):Optics express : the international electronic journal of optics
Publisher:Optical Society of America
Place of publication:Washington
Document Type:Article
Year of first Publication:2014
Year of Completion:2014
Release Date:2017/03/27
First Page:14108
Last Page:14113
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Peer Review:Referiert
Publication Way:Open Access