LUNA’s PM coils can be wound with different winding patterns such as quadrupole, octupole, or other types to minimize the Shupe effect, which degrades the performance of a fiber gyro under temperature-varying conditions. In addition, special Shupe effect mitigation techniques are offered as a special service to customers with special requirements for superior coil performance in the most demanding temperature and vibration environments.
Figure 1 : FC series Fiber Gyro Coils
Unlike other commercial coils on the market that come with only rudimentary specifications such as insertion loss and PER, which are insufficient to guarantee coil performance in a real world gyroscope, LUNA offers the most comprehensive testing data on the market. Such data guarantees that the coils received are trouble free, which ultimately reduces troubleshooting, cost, and integration time. Comprehensive test data include polarization crosstalk vs. distance along the fiber at specified temperatures, with resolution of a few cm; PER, IL, etc. Our standard coils are frameless, held together with our specially formulated potting adhesives.
Figure 2 : octupole / quadrupole and modified quadrupole dispositions
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Figure 3 : crosstalk phenomena for LUNA's coil (right) and competiiton's coil
KEY FEATURES :
• High Performance
• Fully Specified
• Low Polarization x-talk (PM)
• Low Temperature Sensitivity
• Low Vibration Sensitivity
• Highly Symmetric
• Available Frameless or Framed
APPLICATIONS :
• Fiber Optic Gyroscope (FOG)
• Autonomous vehicles