Navigation-grade resonant fiber-optic gyroscope using ultra-simple white-light multibeam interferometry

Zhao, Shuangxiang; Liu, Qingwen; Liu, Yuanyuan; Ma, Huilian; He, Zuyuan

doi:10.1364/prj.443496

Cited by 41 publications

(26 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [11], an experimental prototype of a fiber ring resonator interrogated with broadband light was proposed and several benefits of this new configuration were highlighted. One benefit is that since the broadband light interrogates many ring resonances at once, there is no need to lock to a single resonance, unlike in the laser-driven case.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…As discussed earlier, our experimental setup is shown in Fig. 6 and was inspired by the setup described in [11], the important difference being that we replaced the 100-m fiber coil with our 37-mm-length high-finesse racetrack gyro.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…The comb frequencies carry very little total power, specifically ~1/F, because they are attenuated by the low transmission of the ring on or near resonance. For a ring made of fiber as in [11], it is unknown what the main contribution to the noise of these components is. But since the light under each resonance is fairly broad (~2.1 MHz as estimated above), it is reasonable to assume that these components are limited by either backscattering or RIN.…”

Section: Theoretical Prediction Of the Gyroscope's Sensitivity And Noisementioning

confidence: 99%

See 2 more Smart Citations

High-Q silicon nitride resonator gyroscope interrogated with broadband light

Zawada

Feshali²,

Jin³

et al. 2023

Quantum Sensing, Imaging, and Precision Metrology

View full text Add to dashboard Cite

Advancements in silicon photonics technology have resulted in significant progress toward tactical-grade chip-scale optical gyroscopes for applications such as inertial navigation for a range of self-driving vehicles. Our first generation of gyro, reported a year ago, was a resonant ring gyro fabricated with an ultra-low-loss silicon-nitride waveguide in a racetrack shape with a perimeter of 37 mm and a finesse of 1270. When the laser frequency was tuned to interrogate the resonance with the lowest backscattering coefficient, and balanced detection was implemented to reduce common noise in the two output signals, the angular random walk (ARW) was measured to be 80 deg/h/√Hz, and the gyro output was dominated by backscattering noise. The second-generation reported here utilizes a longer ring to further reduce backscattering noise. The ring resonator is a circular spiral with 33 turns, a length of 1.2 m, and a finesse of 29. When interrogated with a narrow-linewidth laser like the racetrack gyro, it has a measured ARW of 210 deg/h/√Hz dominated by laser-frequency noise. The ARW is higher than that of the racetrack gyro because the balanced detection was not as effective (13.2 dB of common noise rejection compared to 18 dB in the racetrack gyro). Tests in a vacuum indicate that environmental fluctuations do not contribute to the noise, and that most of the measured drift (3,500 deg/h) has an optical and/or electronic origin. We also report the noise performance of the racetrack gyro interrogated in a Sagnac interferometer probed with broadband light. This configuration was inspired by a recent publication from Shanghai Jiao Tong University that reports a resonant fiber optic gyroscope interrogated with broadband light with a measured ARW that meets tactical-grade requirements. The advantages of this interrogation technique are that it eliminates the need to stabilize the resonator, it reduces the component count, and by making use of incoherent light, it reduces the backscattering noise. The measured ARW of the racetrack gyro interrogated with broadband light was dominated by excess noise at large detected powers, and it was a factor of ~900 larger than the ARW of the same racetrack gyro interrogated with the laser. The reason for this increase in ARW is that the advantage of having a high-finesse resonator is lost when the ring is interrogated with broadband light, and the sensitivity is reduced by a factor of the finesse compared to the same ring resonator interrogated with a laser. This reduction in sensitivity is demonstrated experimentally. Achieving tactical-grade requirements will require returning to a laser interrogation, improving the balanced detection scheme to achieve a noise cancellation of 25 dB or better, and optimizing the laser linewidth to minimize both laser frequency noise and backscattering noise.

show abstract

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Theoretical Prediction Of the Gyroscope's Sensitivity And Noisementioning

confidence: 99%

See 1 more Smart Citation

High-Q silicon nitride resonator gyroscope interrogated with broadband light

Zawada

Feshali²,

Jin³

et al. 2023

Quantum Sensing, Imaging, and Precision Metrology

View full text Add to dashboard Cite

show abstract

“…A decrease in the overall dimensions of the RLG entails an increase in the dead zone of the gyroscope. A resonant contour of optical gyroscopes is a new step in the development of optical gyroscopy, as is evidenced by recent research and the development of resonant gyroscopes [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…A potential configuration for a simple assembly of a gyroscope is a signal detection method using multipath white light interference and the correlation of two resonant spectra [ 5 ]. In the proposed configuration, the authors use phase modulation, which helps to achieve record performance for the resonant gyroscope, such as a bias instability of 0.009°/h and an ARW of 0.0093°/√h [ 6 ]. We have proposed a scheme for a completely passive and fiber resonant gyroscope by applying a constant phase shift, using a 3 × 3 directional coupler instead of a phase modulator.…”

Section: Introductionmentioning

confidence: 99%

A Prototype for a Passive Resonant Interferometric Fiber Optic Gyroscope with a 3 × 3 Directional Coupler

Ovchinnikov

Gilev

Криштоп

et al. 2023

Sensors

View full text Add to dashboard Cite

Reducing the dimensions of optical gyroscopes is a crucial task and resonant fiber optic gyroscopes are promising candidates for its solution. The paper presents a prototype of a miniature resonant interferometric gyroscope of a strategic accuracy class. Due to the use of passive optical elements in this gyroscope, it has a great potential for miniaturization, alongside a low production cost and ease of implementation, since it does not require many feedback loops. The presented prototype shows results on a zero instability of 20°/h and an angle random walk of 0.16°/√h. A theoretical model explaining the nature of the multipath interference of resonant spectra and establishing the relationship between the resonator parameters and the output parameters of the presented prototype is proposed. The results predicted are in agreement with the experimental data. The prototype gyroscope demonstrates a scale factor instability and a change in the average signal level, which is due to the presence of polarization non-reciprocity, occurring due to the induced birefringence in the single-mode fiber of the contour. This problem requires further investigation to be performed.

show abstract

Toward atom interferometer gyroscope built on an atom chip

Kim²,

Kim

2023

J. Korean Phys. Soc.

View full text Add to dashboard Cite

Navigation-grade resonant fiber-optic gyroscope using ultra-simple white-light multibeam interferometry

Cited by 41 publications

References 35 publications

High-Q silicon nitride resonator gyroscope interrogated with broadband light

High-Q silicon nitride resonator gyroscope interrogated with broadband light

A Prototype for a Passive Resonant Interferometric Fiber Optic Gyroscope with a 3 × 3 Directional Coupler

Toward atom interferometer gyroscope built on an atom chip

Contact Info

Product

Resources

About