Design and Characterisation of a Fast Steering Mirror Compensation System Based on Double Porro Prisms by a Screw-Ray Tracing Method

This study proposes a novel FSM compensation system for four degrees of freedom (DOF) laser errors compensation, which has the advantage of shorter optical path length, fewer elements and an easier set-up process, meaning that it can be used at different locations. A commercial software, Zemax, is u...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2018-11, Vol.18 (11), p.4046
Main Authors: Chang, Yu-Hao, Liu, Chien-Sheng, Cheng, Chih-Chun
Format: Article
Language:English
Subjects:
Double Porro prisms
fast steer mirror
FSM
laser drift
skew-ray tracing method
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Summary:This study proposes a novel FSM compensation system for four degrees of freedom (DOF) laser errors compensation, which has the advantage of shorter optical path length, fewer elements and an easier set-up process, meaning that it can be used at different locations. A commercial software, Zemax, is used to evaluate the function of the proposed FSM compensation system and the mathematical modelling of the proposed FSM compensation system is established by using a skew-ray tracing method. Finally, the proposed FSM compensation system is then verified experimentally using a laboratory-built prototype and the result shows that the proposed FSM compensation system achieves the ability to compensate the 4 DOF of the laser source.
ISSN:1424-8220
1424-8220
DOI:10.3390/s18114046