Topic
Ring laser gyroscope
About: Ring laser gyroscope is a research topic. Over the lifetime, 2070 publications have been published within this topic receiving 18609 citations. The topic is also known as: Sagnac interferometer.
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02 Nov 2016
TL;DR: In this article, a novel method is proposed to improve the scale factor of the resonant fiber optical gyroscope by using erbium-doped fiber splicing into the fiber ring resonator, forming active resonator to increase the depth of transmission.
Abstract: A novel method is proposed to improve the scale factor of the resonant fiber optical gyroscope. By using erbium-doped fiber splicing into the fiber ring resonator, forming active resonator to increase the depth of transmission.
10 May 2020
TL;DR: In this article, a non-Hermitian He-Ne ring laser gyroscope (RLG) that operates at an exceptional point is proposed and experimentally realized. Compared to a standard RLG, the device exhibits more than an order of magnitude enhancement in sensitivity.
Abstract: A non-Hermitian He-Ne ring laser gyroscope (RLG) that operates at an exceptional point is proposed and experimentally realized. Compared to a standard RLG, the device exhibits more than an order of magnitude enhancement in sensitivity.
Patent•
10 Jan 1972
TL;DR: A gyroscope for generating a drift rate for an optical lead computing gun sight including a particular flexure plate for mounting the gyro-scope eddy-current disc and a four pole permanent magnet of a particular configuration which provides a fail-safe function in the device as discussed by the authors.
Abstract: A gyroscope for generating a drift rate for an optical lead computing gun sight including a particular flexure plate for mounting the gyroscope eddy-current disc and a four pole permanent magnet of a particular configuration which provides a fail-safe function in the device.
29 Jun 2017
TL;DR: In this paper, an all-fibre implementation of the ultrafast laser gyroscope is presented, and the gyroscopic shift in the time domain is further measured, which results in an order of magnitude improvement in the sensitivity over conventional mode-locked laser gyroscopes.
Abstract: The prior art of the ultrafast laser gyroscopes goes back to 1981 when R.L. Fork et. al demonstrated colliding-pulse mode-locking [1] and the further discovery of the temporal overlapping of these pulses in 1990 [2]. Direct rotation measurements using laser gyroscopes are known to be more precise compared to the passive fibre optic devices, where the relative phase shift between the beams is retrieved from their interference after propagating in external passive fibre interferometer [3]. The principal limitation of the laser gyroscope sensitivity is the frequency lock-in effect, caused by residual backscattering in the cavity [4]. Ultrafast laser gyroscopes circumvent this effect since the counter-propagating ultrashort pulses interact only in two positions in the cavity and backscattering is reduced by the ultrashort width of the pulse. Here, we present an all-fibre implementation of the ultrafast laser gyroscope, and further propose measuring the gyroscopic shift in the time domain, which results in an order of magnitude improvement in the sensitivity over conventional mode-locked laser gyroscope.
TL;DR: In this paper , a double-phase modulation scheme was proposed to suppress the optical Kerr noise generated by the front end by compensating the optical power difference while suppressing the backscattered noise.