A system has been developed to accurately detect phase produced in optical interferometric sensors. The system employs optical heterodyning and synchronously detects optical phase by feeding back an error signal to a phase modulator in the reference leg of the interferometer. This system is seen to have properties similar to a phase-locked loop used for the demodulation of FM signals. The system is modeled and found to be of second order and nonlinear. A linear approximation to the original model serves to accurately describe the system in synchronous operation and is corroborated with well matched empirical data. The nonlinear model is simulated via computer techniques and is used to describe the system's parameters that lead to loss and reacquisition of synchronization.
| Identifer | oai:union.ndltd.org:ucf.edu/oai:stars.library.ucf.edu:rtd-1541 |
| Date | 01 October 1981 |
| Creators | Bush, Ira J. |
| Publisher | STARS |
| Source Sets | University of Central Florida |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Retrospective Theses and Dissertations |
| Rights | Public Domain |
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