Ponomarev, R.S.; Shevtsov, D.I.; Karnaushkin, P.V. “Shutdown” of the Proton Exchange Channel Waveguide in the Phase Modulator under the Influence of the Pyroelectric Effect. Appl. Sci.2019, 9, 4585.
Ponomarev, R.S.; Shevtsov, D.I.; Karnaushkin, P.V. “Shutdown” of the Proton Exchange Channel Waveguide in the Phase Modulator under the Influence of the Pyroelectric Effect. Appl. Sci. 2019, 9, 4585.
Ponomarev, R.S.; Shevtsov, D.I.; Karnaushkin, P.V. “Shutdown” of the Proton Exchange Channel Waveguide in the Phase Modulator under the Influence of the Pyroelectric Effect. Appl. Sci.2019, 9, 4585.
Ponomarev, R.S.; Shevtsov, D.I.; Karnaushkin, P.V. “Shutdown” of the Proton Exchange Channel Waveguide in the Phase Modulator under the Influence of the Pyroelectric Effect. Appl. Sci. 2019, 9, 4585.
Abstract
It is shown that the termination of the channeling of the fundamental radiation mode in the waveguide can be observed upon heating of an optical integrated circuit based on proton exchange channel waveguides formed in a lithium niobate single crystal. This process is reversible, but restoration of waveguide performance takes tens of minutes. The effect of the waveguide disappearance is observed upon rapid heating (5 °C/min) from a low temperature (minus 40 °C). This effect can lead to a temporary failure of navigation systems using fiber optic gyroscopes with modulators based on a lithium niobate crystal
Keywords
channel waveguide; proton exchange; fundamental mode; pyroelectric effect; mobile charge; fiber optic gyroscope; phase modulator
Subject
Physical Sciences, Optics and Photonics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
