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Proceedings Paper

Non-contact fine positioning of optical components and circuits using femtosecond lasers (Conference Presentation)

Paper Abstract

In this work, we investigate non-contact tuning methods to re-align a beam of light in an optical circuit. We show that by combining flexures and femtosecond laser based exposure at low energy pulses, optical elements (a mirror in this case) can be repositioned remotely in a reversible manner, permanently and with unprecedented levels of accuracy down to sub-micro-radian levels. Due to the monolithic nature of these elements and our non-contact tuning approach, they occupy considerably less space and thus offer new possibilities in device miniaturization. Additionally, we show that such repositioning is permanent in nature – meaning – once the device is exposed to the laser and the optimal position is found, it does not fluctuate away from that position.

Paper Details

Date Published: 9 March 2020
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Proc. SPIE 11270, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX, 112700O (9 March 2020); doi: 10.1117/12.2542099
Show Author Affiliations
Saood Ibni Nazir, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Yves Bellouard, Ecole Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 11270:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX
Peter R. Herman; Michel Meunier; Roberto Osellame, Editor(s)

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