Crisel Instruments fiber-optic gyroscope offers polarization extinction up to >30 dB

This 1550 nm fiber-optic gyroscope (FOG) device from Selex Sistemi Integrati is based on proton exchange waveguides on a LiNbO₃ substrate. The device includes a polarizing optical waveguide and a dual-phase modulator, and offers both low insertion loss and driving voltage. High polarization extinction up to >30 dB in fiber is possible.
Crisel Instruments S.r.l.
Rome, Italy
www.crisel-instruments.it

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PRESS RELEASE

Fiber Optic Gyroscope (FOG) chips

The fiber-optic gyro (FOG) exploited the technology of low loss, single mode, optical fibers in the mid 70s. As compared to the previous generation of ring laser or mechanical gyro systems, the FOG navigation systems offer significantly smaller size, much lower weight, lower power consumption, vast improvement in life and reliability, all at the same or better level of accuracy and reliability.

Selex Sistemi Integrati manufactures a 1550nm FOG device based on Proton Exchange waveguides on LiNbO3 substrate, which includes high performance polarizing optical waveguide and dual Phase Modulator. This technology allows a high polarization extinction in fiber up to >30dB, low insertion losses and low driving voltage.

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