Novel Polarization-Rotating Fiber Resonator For Rotation Sensing Applications

Sanders, Glen A.; Smith, Robert B.; Rouse, Gordon F.

doi:10.1117/12.963055

Cited by 41 publications

(11 citation statements)

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“…Several papers proposed to suppress one ESOP using either polarizing fibers [14] or an anisotropic coupler [9], but the ESOP's orthogonality is removed and their differential round-trip loss must be at least of 10 dB [9]. The best way is to make the ESOP's immune to variation of the birefringence by introducing in the ring a rotational splice at 90 with respect to the fiber axis [15], [16]. The adjacent resonances are thus always separated by a phase shift and will never coincide in the frequency domain.…”

Section: Linearly Birefringent Fiber Ring Resonatorsmentioning

confidence: 99%

“…1) For where is an integer, the eigenvalues are (7) (8) and the associated eigenvectors are circular (9) (10) 2) For where is an integer, the eigenvalues are (11) (12) and the associate eigenvectors are linear (13) (14) Under this latter condition the eigenvalues are related by (15) This means that the phase difference between adjacent resonances is fixed to independently of the change in the circular birefringence due to temperature fluctuations, as shown in [10].…”

Section: Theoretical Analysis Of a Circularly Birefringent Fibermentioning

confidence: 99%

See 1 more Smart Citation

Polarization analysis of Brillouin scattering in a circularly birefringent fiber ring resonator

Küng

Thévenaz

Robert

1997

J. Lightwave Technol.

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Abstract-A complete analysis of the eigenstate of polarization (ESOP's) in a Brillouin fiber ring laser using fibers with a high circular birefringence is proposed in this paper. Conditions to obtain circular ESOP's for application in a Brillouin fiber optic current sensor are highlighted as well as conditions to have stable ESOP's for applications in other passive or active sensors. Measurements are performed on a Brillouin laser using a mechanically twisted fiber ring resonator confirming the theoretical predictions. Ring resonator configurations using linearly birefringent fibers are compared to configurations using circularly birefringent fibers.Index Terms-Brillouin scattering, optical fiber birefringence, optical fiber devices, optical fiber lasers, optical fiber polarization, optical resonators, optical scattering.

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Section: Linearly Birefringent Fiber Ring Resonatorsmentioning

confidence: 99%

Section: Theoretical Analysis Of a Circularly Birefringent Fibermentioning

confidence: 99%

Polarization analysis of Brillouin scattering in a circularly birefringent fiber ring resonator

Küng

Thévenaz

Robert

1997

J. Lightwave Technol.

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“…In a polarization-maintaining fiber (PMF) resonator, two eigen-states of polarizations (ESOPs) are excited [4]. The phase difference between the desired ESOP and the unwanted ESOP drifts rapidly as the temperature changes, which causes large detection errors [5].…”

Section: Introductionmentioning

confidence: 99%

In-line polarizer used in all-0°-splice resonator fiber-optic gyro

Liu

Wang

et al. 2013

Appl. Opt.

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A method to suppress the polarization-fluctuation-induced drift in a resonator fiber-optic gyro is proposed in this paper. By inserting one in-line polarizer whose polarization extinction ratio is 30 dB into a polarization-maintaining fiber resonator with 0° polarization-axis splices, the unwanted resonance is introduced to high loss and therefore the ratio of the resonance height of the desired eigen-states of polarization (ESOP) to the unwanted ESOP is 74 dB theoretically; thus the polarization-fluctuation-induced drift is adequately suppressed. The new scheme has excellent operability and high temperature stability simultaneously. Compared to the resonator with twin 90° polarization-axis rotated splices, this scheme does not need precise length difference control. This work is of great importance in the research on resonator integrated optic gyros.

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“…Such a problem can be solved if we use a polarizationmaintaining Er doped fiber to form a fiber ring resonator. A fiber ring structure with a 90 degree rotated splice between two birefringent axes has been studied in detail for the passive application in optical fiber gyros [5] [6], and it can certainly be used for the Er doped fiber ring laser. However, the polarization-maintaining Er doped fiber is still special one.…”

Section: Introductionmentioning

confidence: 99%