Nonlinear control of the optical delay line pathlength

Boris J. Lurie; John J. Hench; Asif Ahmed; Fred Y. Hadaegh

doi:10.1117/12.352856

15 July 1999 Nonlinear control of the optical delay line pathlength

Boris J. Lurie, John J. Hench, Asif Ahmed, Fred Y. Hadaegh

Proceedings Volume 3692, Acquisition, Tracking, and Pointing XIII; (1999) https://doi.org/10.1117/12.352856
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

This paper discusses the problem of designing a control system for an interferometer delay line which contains coarse-vernier loops. The vernier loop compensator has nonlinear dynamics and includes a local feedback path containing a deadzone. This accomplishes two objectives: global stability and good transient response to large signals. In addition, by ensuring global stability in the vernier loop, the gain of the coarse loop may be increased thus providing greater disturbance rejection in the overall loop.

Citation Download Citation

Boris J. Lurie, John J. Hench, Asif Ahmed, and Fred Y. Hadaegh "Nonlinear control of the optical delay line pathlength", Proc. SPIE 3692, Acquisition, Tracking, and Pointing XIII, (15 July 1999); https://doi.org/10.1117/12.352856

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