LiNbO/sub 3/ integrated optical chip for fiber optical gyroscope fabricated by high temperature proton exchange

The main fiber optical gyroscope's components is a multifunctional integrated optical chip (MIOC). Optolink's MIOC is a solid state waveguide device on X-cut LiNbO/sub 3/ substrate fabricated by high-temperature proton exchange method (HTPE). A very important advantage of proton exchange (...

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Bibliographic Details
Main Authors: Korkishko, Yu.N., Fedorov, V.A., Kostritskii, S.M., Alkaev, A.N., Paderin, E.M., Maslennikov, E.I., Kritzak, V.S., Apraksin, D.V.
Format: Conference Proceeding
Language:English
Subjects:
Gyroscopes
Integrated optics
Optical devices
Optical fiber devices
Optical fiber polarization
Optical propagation
Optical refraction
Optical waveguides
Protons
Solid state circuits
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Summary:The main fiber optical gyroscope's components is a multifunctional integrated optical chip (MIOC). Optolink's MIOC is a solid state waveguide device on X-cut LiNbO/sub 3/ substrate fabricated by high-temperature proton exchange method (HTPE). A very important advantage of proton exchange (PE) waveguides is the following. In such waveguides the extraordinary refraction index is increasing, while refraction index of ordinary ray is decreasing. As a result, proton exchanged waveguides support propagation only extraordinary polarization modes (TE in our case). Therefore, it is not necessary to use in the fiber optical gyroscope a polarizer, which brings additional loss.
DOI:10.1109/LFNM.2003.1246149