Integrated three-waveguide directional coupler functions as polarizer and splitter. Designed with transverse electric (TE) polarization in bar state (two coupling lengths) and transverse magnetic (TM) polarization in cross state (one coupling length). Intended for eventual fabrication as in mass-producible integrated optical circuit that provides advantages including low drive voltage, large-bandwidth phase modulation, preservation of polarization in transmission between devices on same substrate, and low cost.
Interferometric Fiber-Optic Gyroscope
NASA Tech Briefs ; 14 , 4
1990-04-01
Miscellaneous
No indication
English
Strategic Interferometric Fiber-Optic Gyroscope for Ballistic Missile Inertial Guidance
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