Multi-wavelength operation of a single broad area diode laser by spectral beam combining
- Stabilized multi-wavelength emission from a single emitter broad area diode laser (BAL) is realized by utilizing an external cavity with a spectral beam combining architecture. Self-organized emitters that are equidistantly spaced across the slow axis are enforced by the spatially distributed wavelength selectivity of the external cavity. This resulted in an array like near-field emission although the BAL is physically a single emitter without any epitaxial sub-structuring and only one electrical contact. Each of the self-organized emitters is operated at a different wavelength and the emission is multiplexed into one spatial mode with near-diffraction limited beam quality. With this setup, multi-line emission of 31 individual spectral lines centered around and a total spectral width of 3.6 nm is realized with a 1000 mu m wide BAL just above threshold. To the best of our knowledge, this is the first demonstration of such a self-organization of emitters by optical feedback utilizing a spectral beam combining architecture.
Verfasserangaben: | Christof Zink, Nils Werner, Andreas JechowORCiDGND, Axel HeuerORCiDGND, Ralf Menzel |
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DOI: | https://doi.org/10.1109/LPT.2013.2291963 |
ISSN: | 1041-1135 |
ISSN: | 1941-0174 |
Titel des übergeordneten Werks (Englisch): | IEEE photonics technology letters |
Verlag: | Inst. of Electr. and Electronics Engineers |
Verlagsort: | Piscataway |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2014 |
Erscheinungsjahr: | 2014 |
Datum der Freischaltung: | 27.03.2017 |
Freies Schlagwort / Tag: | Laser resonators; optical feedback; semiconductor lasers |
Band: | 26 |
Ausgabe: | 3 |
Seitenanzahl: | 4 |
Erste Seite: | 253 |
Letzte Seite: | 256 |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer Review: | Referiert |