Statistical analysis on the optical axis perturbation in nonplanar ring resonators

Liu, Dong; Wen, Dandan; Zhao, Jianlin

doi:10.1117/12.905002

Cited by 4 publications

(1 citation statement)

References 14 publications

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“…Of Western firms, only Northrop Grumman (after acquired Litton) [20,23] realized an approach with a magneto-optic biasing, but its disadvantage is the introduction of a magneto-optic element (Faraday cell) inside the resonator, which complicates the design and creates a thermosensitive, scattering-added, optically inhomogeneous zone in the path of the laser beam. Some papers were published on development of fourmode LG [4] and LG with nonplanar resonator in China [12].…”

mentioning

confidence: 99%

Computer simulation of the Zeeman laser gyros resonator length control system behavior

Sinelnikov

Kuznetsov²,

Golyaev³

et al. 2022

Optical Technology and Measurement for Industrial Applications Conference 2022

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Laser strapdown inertial navigation system has become the mainstream of the medium and high precision inertial navigation systems, and its core component is a laser gyro (LG) [20,23].The LG have the advantages of high precision, large dynamic range, fast starting, super stable scale factor, strong environmental adaptability, high reliability and long working life [1,13,18].Apart from Russia, only four countriesthe United States, France, China and Israelhave been able to master the complex knowledge-intensive technology of laser gyros production [13,23,24].Even though the new types of gyros appeared, but the LGs still keep the highest market share and are largely used in navigation and guidance systems. As it is seen in Fig. 1 [24], LGs occupy the highest accuracy zone with bias instability about 0.01 °/h and much less.

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mentioning

confidence: 99%

Computer simulation of the Zeeman laser gyros resonator length control system behavior

Sinelnikov

Kuznetsov²,

Golyaev³

et al. 2022

Optical Technology and Measurement for Industrial Applications Conference 2022

View full text Add to dashboard Cite

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Characterization of the eigenmode frequency spectrum influenced by the polarization states and light field distribution in a nonplanar ring resonator

Zhao

2016

Appl. Opt.

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We present the evolution of the eigenmode frequency spectrum in a nonplanar ring resonator based on the Jones matrix and the Fresnel-Kirchhoff diffraction integral. Taking the modes TEM_(q+1)01 and TEM_q10 with different polarization states as examples, we numerically derive the frequency difference between them versus the folding angles of the resonator by considering the polarization and the light field distribution of the eigenmodes synchronously. It can be found that the extreme values of frequency difference between TEM_(q+1)01 and TEM_q10 are particularly affected by the polarization states of the eigenmode, and the locations of these consecutive extreme values correspond to the total image rotation angle with values of the integer multiple of 90°. Moreover, the influence of the resonator structure on the frequency difference of eigenmodes with the identical polarization state is also analyzed. The results prove that the frequency difference between the fundamental mode and higher order modes declines with the increase of the spherical mirrors' radius of curvature but increases with the augmentation of the resonator's total length. These interesting findings are important for the mode selection in high-accuracy ring laser gyroscopes with nonplanar structure by modulating the polarization states and the light field distribution of the eigenmodes to control the frequency difference between them.

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Analysis on the characteristic of the optical axis perturbation in a total reflection prismring resonator

Liu

Jiang

et al. 2018

Appl. Opt.

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The deduction of the augmented 5×5 matrix describing all the possible angular and decentration misalignment perturbation sources on a spherical prism plane during the refraction is presented in detail for the first time. Combining the augmented matrices and the condition of eigenmode self-consistency, the optical axis perturbation properties (described with the optical axis perturbation sensitivity factor SD1, ST1, SD2, and ST2) in a total reflection prism ring resonator are also analyzed. The singular points of the optical axis perturbation sensitivity factor are found at L/R=0.417 for the cases where the misalignments may originate from distinguished type of prisms P and P in the resonator, respectively. It is shown that the small errors of the prism can cause large optical axis disturbance in the position of the perturbed singular point and its nearby area, and the disturbance for the case where the misalignments originate from prism P is more violent than that of prism P. With some upgrades to find and avoid the singularity of the optical axis in the total reflection prism ring resonator structure successfully, we expect this work will have great potential for designing and optimizing the structure of super-high-precision ring laser gyroscopes.

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Statistical analysis on the optical axis perturbation in nonplanar ring resonators

Cited by 4 publications

References 14 publications

Computer simulation of the Zeeman laser gyros resonator length control system behavior

Computer simulation of the Zeeman laser gyros resonator length control system behavior

Characterization of the eigenmode frequency spectrum influenced by the polarization states and light field distribution in a nonplanar ring resonator

Analysis on the characteristic of the optical axis perturbation in a total reflection prismring resonator

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