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Disorder mapping in VCSELs using frequency-selective feedback

Ackemann, Thorsten and Radwell, Neal Matthew and Noblet, Yoann and Jaeger, R. (2012) Disorder mapping in VCSELs using frequency-selective feedback. Optics Letters, 37 (6). pp. 1079-1081. ISSN 0146-9592

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We report on a simple method with a high spectral and spatial resolution for mapping variations in the cavity resonance of a plano-planar broad-area laser based on frequency-selective feedback. The demonstration experiment uses a vertical-cavity surface-emitting-laser (VCSEL), in which growth induced inhomogeneities are of particular importance. It relies only on a standalone laser with a narrow-bandwidth passive filter avoiding the need for an expensive tunable laser or high-resolution spectrometer.

Item type: Article
ID code: 38854
Keywords: disorder mapping, VCSEL , frequency-selective feedback, Optics. Light, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Depositing user: Pure Administrator
Date Deposited: 02 Apr 2012 09:06
Last modified: 24 Jul 2015 11:34
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