Mode stabilization of a laterally structured broad area diode laser using an external volume Bragg grating
- An external volume Bragg grating (VBG) is used for transverse and longitudinal mode stabilization of a broad area diode laser (BAL) with an on-chip transverse Bragg resonance (TBR) grating. The internal TBR grating defines a transverse low-loss mode at a specific propagation angle inside the BAL. Selection of the TBR mode was realized via the angular geometry of an external resonator assembly consisting of the TBR BAL and a feedback element. A feedback mirror provides near diffraction limited and spectral narrow output in the TBR mode albeit requiring an intricate alignment procedure. If feedback is provided via a VBG, adjustment proves to be far less critical and higher output powers were achieved. Moreover, additional modulation in the far field distribution became discernible allowing for a better study of the TBR concept. (C) 2015 Optical Society of America
Author details: | Mario NiebuhrORCiDGND, Christof Zink, Andreas JechowORCiDGND, Axel HeuerORCiDGND, Leonid B. Glebov, Ralf Menzel |
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DOI: | https://doi.org/10.1364/OE.23.012394 |
ISSN: | 1094-4087 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/25969324 |
Title of parent work (English): | Optics express : the international electronic journal of optics |
Publisher: | Optical Society of America |
Place of publishing: | Washington |
Publication type: | Article |
Language: | English |
Year of first publication: | 2015 |
Publication year: | 2015 |
Release date: | 2017/03/27 |
Volume: | 23 |
Issue: | 9 |
Number of pages: | 7 |
First page: | 12394 |
Last Page: | 12400 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer review: | Referiert |
Publishing method: | Open Access |