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10 items by relevance
1 PhD Thesis

Wavelength tunable MEMS VCSELs

Sahoo, Hitesh Kumar

DTU - Department of Photonics Engineering — 2017

. Thus the device is much more robust than the existing MEMS VCSELs. This design also enables either a two-way actuation on the MEMS or a smaller optical cavity (pull-away design), i.e. wider FSR (Free Spectral Range) to increase the wavelength sweep. Fabrication of the proposed device is outlined

Year: 2017

Language: English

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2 Conference paper

Wavelength tunable MEMS VCSELs for OCT imaging

Sahoo, Hitesh Kumar; Ansbæk, Thor; Ottaviano, Luisa; Semenova, Elizaveta; Hansen, Ole; Yvind, Kresten

Proceedings of Spie — 2018, Volume 10552, pp. 105520I-105520I-6

MEMS VCSELs are one of the most promising swept source (SS) lasers for optical coherence tomography (OCT) and one of the best candidates for future integration with endoscopes, surgical probes and achieving an integrated OCT system. However, the current MEMS-based SS are processed on the III-V

Year: 2018

Language: English

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3 Conference paper

Optically pumped 1550nm wavelength tunable MEMS VCSEL

Sahoo, Hitesh Kumar; Ansbæk, Thor; Ottaviano, Luisa; Semenova, Elizaveta; Hansen, Ole; Yvind, Kresten

Proceedings of Spie — 2016, Volume 9760, pp. 97600X-97600X-10

The paper presents the design and fabrication of an optically pumped 1550nm tunable MEMS VCSEL with anenclosed MEMS. The MEMS is defined in SOI and the active material, an InP wafer with quantum wells arebonded to the SOI and the last mirror is made from the deposition of dielectric materials

Year: 2016

Language: English

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