Stripe-array diode-laser in an off-axis external cavity : theory and experiment
- Stripe-array diode lasers naturally operate in an anti-phase supermode. This produces a sharp double lobe far field at angles ña depending on the period of the array. In this paper a 40 emitter gain guided stripe-array laterally coupled by off-axis filtered feedback is investigated experimentally and numerically. We predict theoretically and confirm experimentally that at doubled feedback angle 2a a stable higher order supermode exists with twice the number of emitters per array period. The theoretical model is based on time domain traveling wave equations for optical fields coupled to the carrier density equation taking into account diffusion of carriers. Feedback from the external reflector is modeled using Fresnel integration.
| Author details: | Andreas JechowORCiDGND, Mark Lichtner, Ralf Menzel, Mindaugas Radziunas, Danilo Skoczowsky, Andrei G. Vladimirov |
|---|---|
| URL: | http://www.opticsinfobase.org/oe/Issue.cfm |
| DOI: | https://doi.org/10.1364/OE.17.019599 |
| ISSN: | 1094-4087 |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2009 |
| Publication year: | 2009 |
| Release date: | 2017/03/25 |
| Source: | Optics express. - ISSN 1094-4087. - 17 (2009), 22, S. 19599 - 19604 |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
| Publishing method: | Open Access |
