HIGH-PERFORMANCE INTEGRATED-OPTICAL CHIP FOR A BROAD RANGE OF FIBEROPTIC GYRO APPLICATIONS

被引:18
作者
FINDAKLY, T
BRAMSON, M
机构
[1] UNITED TECHNOL RES CTR,E HARTFORD,CT 06108
[2] USN,CTR WEAP,CHINA LAKE,CA 93555
关键词
D O I
10.1364/OL.15.000673
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A high-performance integrated-optical device for a broad range of fiber-optic gyro applications is reported. The circuit contains four directional couplers and six phase modulators that form the fiber-loop coupler, the bias and serrodyne phase modulators, and an on-chip interferometric serrodyne phase detector. The chip was fabricated by the annealed-proton-exchange method in X-cut LiNbO3, which yielded a highly polarizing guided circuit with a polarization extinction ratio of at least 60 dB. Other performance parameters include low half-wave voltages (3.5–5.5 V) at 1.3μm and splitting and tapping directional coupler parameters well within the design needs required by application. © 1990 Optical Society of America.
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页码:673 / 675
页数:3
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