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 |
|---|---|
| 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 |
