Compact, Watt-class 785 nm dual-wavelength master oscillator power amplifiers
dc.bibliographicCitation.firstPage | 125007 | |
dc.bibliographicCitation.issue | 12 | |
dc.bibliographicCitation.journalTitle | Journal of physics communications | eng |
dc.bibliographicCitation.volume | 6 | |
dc.contributor.author | Müller, André | |
dc.contributor.author | Maiwald, Martin | |
dc.contributor.author | Sumpf, Bernd | |
dc.date.accessioned | 2023-02-10T07:33:38Z | |
dc.date.available | 2023-02-10T07:33:38Z | |
dc.date.issued | 2022 | |
dc.description.abstract | 785 nm micro-integrated, dual-wavelength master oscillator power amplifiers with a footprint of 5 mm × 25 mm are presented. They are based on Y-branch distributed Bragg reflector ridge waveguide diode lasers and anti-reflection coated tapered amplifiers. In order to reduce the impact of potential optical feedback, devices with master oscillator front facet reflectivities of 5% and 30% as well as with an integrated miniaturized optical isolator have been realized. A comparison up to 1 W shows narrowband dual wavelength laser emission with a spectral distance of 0.6 nm (10 cm−1) and individual spectral widths <20 pm. As expected, a higher front facet reflectivity leads to a significant reduction of feedback related mode hops. Longitudinal modes corresponding to the master oscillator resonator length remain within spectral windows <0.15 nm (3 cm−1), suitable for applications such as Raman spectroscopy and especially shifted excitation Raman difference spectroscopy. Integrating a compact 30 dB optical isolator completely eliminates the observed optical feedback effects. Lateral beam propagation ratios of 1.2 (1/e2) enable easy beam shaping and fiber coupling. Outside of the experimental comparison, the developed MOPAs provide up to 2.7 W of optical output power available for applications. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/11376 | |
dc.identifier.uri | http://dx.doi.org/10.34657/10410 | |
dc.language.iso | eng | |
dc.publisher | Bristol ; Philadelphia, PA : IOP Publishing Ltd. | |
dc.relation.doi | https://doi.org/10.1088/2399-6528/acac6e | |
dc.relation.essn | 2399-6528 | |
dc.rights.license | CC BY 4.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | |
dc.subject.ddc | 530 | |
dc.subject.other | diode laser | eng |
dc.subject.other | distributed Bragg reflector | eng |
dc.subject.other | dual-wavelength | eng |
dc.subject.other | master oscillator power amplifier | eng |
dc.subject.other | Raman spectroscopy | eng |
dc.subject.other | tapered amplifier | eng |
dc.title | Compact, Watt-class 785 nm dual-wavelength master oscillator power amplifiers | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | |
wgl.contributor | FBH | |
wgl.subject | Physik | ger |
wgl.type | Zeitschriftenartikel | ger |
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