OSE Dissertation Defense by Mr. Luke Jameson Horstman on Intracavity Phase Interferometry Based Fiber Sensors

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Dr. Luke Emmert 225 x 300

Posted: November 24, 2021

Date: Tuesday, December 7th, 2021 

Time: 1:30pm

Location:  CHTM, Rm. 148 and via Zoom

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Meeting ID: 982 0377 1235

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Committee members:
Dr. Jean-Claude Diels (Chair)
Dr. Steven R.J. Brueck
Dr. Tara Drake
Dr. R. Jason Jones



Intracavity Phase Interferometry (IPI) is a detection technique that exploits the inherent sensitivity of a laser’s frequency to the parameters of its cavity. Intracavity interferometry is orders of magnitude more sensitive than its extracavity alternatives. This dissertation improves on previous free-space proof-of-concept designs. By implementing the technique in fiber optics, using optical parametric oscillation, and investigating non-Hermitian quantum mechanics and dispersion tailoring enhancement techniques, IPI has become more applicable and sensitive. 
Ring and linear IPI configurations were realized in this work, both operating as bidirectional fiber optical parametric oscillators. The benefit of using externally pumped synchronous optical parametric oscillation is the removal of the sensor dead band region and simplification of the sensing cavity. These two lasers, along with the theoretical work found in this Dissertation, galvanize future fundamental studies of sensor noise and sensitivity enhancement.