A new intensity-noise-subtraction scheme for an interferometric fiber-optic gyroscope is demonstrated. Together with the light circulating through the gyro coil, an appropriately attenuated light beam from the source coupler dead end of the gyro is directed to the gyro photodetector. When the gyro is unmodulated, or modulated with a square wave at the proper frequency, the intensity noises of the two beams bear opposite phases and interfere destructively on the detector. For an unmodulated gyro, we demonstrate an intensity noise-reduction factor of ∼35, and for the same gyro modulated with a square wave at the proper frequency, we demonstrate a reduction factor of ∼15.

© 2000 Optical Society of America

[Optical Society of America ]

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

Related Journal Articles

• Modulational instability in a transmission system with semiconductor optical amplifiers and in-line filters (OL)
• Fabrication and characteristics of character-1 shaped reduced diameter polarization-maintaining optical fiber (COL)
• Improved silica fiber with enhanced ultraviolet transmission (COL)
• A novel method for determining and improving the quality of a quadrupolar fiber gyro coil under temperature variations (OE)
• Unidirectional fiber optic sensor for angular acceleration measurement (OL)

Related Conference Papers

• Slow-Light Waveguides with Mode Degeneracy: Rotation-Induced Superstructures and Optical Gyroscopes
• Sagnac Effect in Rotating Photonic Crystal Micro-Cavities and Miniature Optical Gyroscopes
• A Birefringent Fiber Frequency-Modulated Continuous-Wave Interferometric Gyroscope
• Effect of modulational mnstability on broadband wavelength conversion using four wave mixing in optical fiber
• Effect of modulational mnstability on broadband wavelength conversion using four wave mixing in optical fiber
• Single-Mode Fiber Frequency-Modulated Continuous-Wave Sagnac Gyroscope with Long-Term Stability