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Model-free precision control of 808 nm laser pulses

Published online by Cambridge University Press:  01 February 2019

Brady T. Simon ,
Joshua Dupaty ,
Ei Ei Brown  and
Makhin Thitsa
Brady T. Simon
Affiliation:
Mercer University, Mercer University Drive, Macon, GA 31207, U.S.A
Joshua Dupaty
Affiliation:
Mercer University, Mercer University Drive, Macon, GA 31207, U.S.A
Ei Ei Brown
Affiliation:
Army Research Laboratory, Powder Mill Rd, Adelphi, MD20783, U.S.A
Makhin Thitsa*
Affiliation:
Mercer University, Mercer University Drive, Macon, GA 31207, U.S.A
*
*(Email: thitsa_m@mercer.edu)
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Abstract

We propose a method for precision control of the temporal pulse shape in 808 nm emission from Er-doped fluoroindate glasses. Previously, authors have reported the model based controller design, in which the controller varies and controls the pump rate in real time through the pump power. In model-based design, the performance of the resultant controller depends on the accuracy of the mathematical model used to represent the device in the design process. In this paper a more robust control scheme using model-free approach is presented. Specifically, the controller design is independent of the mathematical model and hence any modeling error has no effect on the device performance. This robustness against modeling error is critical for control purposes in optical materials where various up-conversion parameters are unknown or hard to determine with certainty.

Keywords

rare-earthslaserinfrared (IR) spectroscopyphotonic
Type
Articles
Information
MRS Advances , Volume 4 , Issue 11-12: Electronic, Photonic and Magnetic Materials , 2019 , pp. 683 - 688
Copyright
Copyright © Materials Research Society 2019 

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References

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