Multi-wavelength, high spatial brightness operation of a phase-locked stripe-array diode laser
- Stable continuous wave multi-wavelength operation of a stripe-array diode laser with an externalcavity spectral beam combining geometry is presented. In this setup each emitter of the stripe-array is forced to operate at a different wavelength, which leads to a decoupling between the usually phase-locked emitters. With a reflective diffraction grating with a period of 300 lines per mm, 33 equidistant laser lines around a center wavelength of 978 nm were realized, spanning a spectral range of 26 nm. With this novel approach near-diffraction limited emission with a beam quality of M (2) < 1.2 and an output power of 450 mW was achieved. This laser light source can be used for applications requiring low temporal but high spatial coherence.
Author details: | Axel HeuerORCiDGND, A. Sagahti, Andreas JechowORCiDGND, D. Skoczowsky, Ralf Menzel |
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DOI: | https://doi.org/10.1134/S1054660X12010057 |
ISSN: | 1054-660X |
Title of parent work (English): | Laser physics |
Publisher: | Pleiades Publ. |
Place of publishing: | New York |
Publication type: | Article |
Language: | English |
Year of first publication: | 2012 |
Publication year: | 2012 |
Release date: | 2017/03/26 |
Volume: | 22 |
Issue: | 1 |
Number of pages: | 5 |
First page: | 160 |
Last Page: | 164 |
Funding institution: | BMWI |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer review: | Referiert |