Resonator Fiber-Optic Gyro Using LiNbO[sub]3[/sub] Integrated Optics At 1.5-µm Wavelength

G. A. Sanders; G. F. Rouse; L. K. Strandjord; N. A. Demma.; K. A. Miesel; Q. Y. Chen

doi:10.1117/12.948857

1 February 1989 Resonator Fiber-Optic Gyro Using LiNbO₃ Integrated Optics At 1.5-µm Wavelength

G. A. Sanders, G. F. Rouse, L. K. Strandjord, N. A. Demma., K. A. Miesel, Q. Y. Chen

Proceedings Volume 0985, Fiber Optic and Laser Sensors VI; (1989) https://doi.org/10.1117/12.948857
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

Fiber-optic gyros are being developed as attractive devices for many navigation and guidance applications. These all solid-state devices promise to have many advantages such as light weight, long life, no moving arts, and low voltage power. One class of fiber-optic gyros, the resonator fiber-optic gyro (RFOG), has been investigated primarily as a means of realizing these advantages while significantly reducing the length of the fiber coil. One of the key developments for interferometer fiber gyros was the use of all-guided-wave single-mode components to achieve a rugged, stable device.5 More recently the incorporation of integrated optics has allowed the use of closed loop schemes to achieve good scale factor performance over high dynamic range and has made low cost practical devices possible.6 On the other hand, while significant progress has been achieved towards the incorporation of semiconductor sources in RFOGs,7 all-guided-wave RFOGs have not yet been reported. In particular, little data yet exists on the use of integrated optics in RFOGs to achieve the necessary frequency shifting and loop closure. In this paper, we present data on a nearly all guided-wave RFOG experimental system, employing a 20m fiber resonator, lithium niobate (LiNbO₃) integrated optics, and a 1.5-μm helium-neon (HeNe) laser. Frequency shifting is achieved by the use of serrodyne phase ramp techniques.8, The gyro is packaged, with the exception of the source and its associated beamsplitter.

Citation Download Citation

G. A. Sanders, G. F. Rouse, L. K. Strandjord, N. A. Demma., K. A. Miesel, and Q. Y. Chen "Resonator Fiber-Optic Gyro Using LiNbO₃ Integrated Optics At 1.5-µm Wavelength", Proc. SPIE 0985, Fiber Optic and Laser Sensors VI, (1 February 1989); https://doi.org/10.1117/12.948857

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