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Photo-Robotic Positioning for Integrated Optics | IEEE Journals & Magazine | IEEE Xplore

Photo-Robotic Positioning for Integrated Optics


Abstract:

High positioning accuracy is a crucial need to perform successfully complex tasks such as micromanipulation and microassembly. This especially enables to provide high per...Show More

Abstract:

High positioning accuracy is a crucial need to perform successfully complex tasks such as micromanipulation and microassembly. This especially enables to provide high performances or to propose new functionalities/products, notably for integrated optical devices. The objective of the letter is to align two optical structures in multi-DOF way with very high accuracy. The originality of the approach relies on robotic positioning associated with the use of interfered reflected light irradiance as a feedback signal rather than transmitted power. Fabry–Perot interference principle is especially used to provide a fast and high accurate measurement. An opto-mechanical model that relates the optical component poses with the interfered reflected light is proposed. Experimental results are investigated based on a robotic multi-DOF platform, used to relatively align an optical component to an optical fiber. The obtained results establish that the model fits with experiments with a standard deviation below 0.0281^{\circ }. This model associated with an automated positioning strategy shows that it is possible to maximize reflectivity within less than 6 s, including multi-DOF angular misalignments identification and compensation.
Published in: IEEE Robotics and Automation Letters ( Volume: 2, Issue: 1, January 2017)
Page(s): 217 - 222
Date of Publication: 09 July 2016

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