Journal ArticleDOI
Ultrahigh enhancement in absolute and relative rotation sensing using fast and slow light
Reads0
Chats0
TLDR
In this paper, the authors describe a resonator-based optical gyroscope whose sensitivity for measuring absolute rotation is enhanced via use of the anomalous dispersion characteristic of superluminal light propagation.Abstract:
We describe a resonator-based optical gyroscope whose sensitivity for measuring absolute rotation is enhanced via use of the anomalous dispersion characteristic of superluminal light propagation. The enhancement is given by the inverse of the group index, saturating to a bound determined by the group velocity dispersion. We also show how the offsetting effect of the concomitant broadening of the resonator linewidth may be circumvented by using an active cavity. For realistic conditions, the enhancement factor is as high as ${10}^{6}$. We also show how normal dispersion used for slow light can enhance relative rotation sensing in a specially designed Sagnac interferometer, with the enhancement given by the slowing factor.read more
Citations
More filters
Journal ArticleDOI
Tunable phase control of rotary photon drag by superposition of three probes coherence in atomic medium
TL;DR: In this article, the rotary photon drag in the region positive and negative group velocity regions was investigated with the phases and strength of applied fields and superposition states, and the significant tunability of photon drag from positive to negative values in micro-radians showed potential application in the spacial modes imaging coding.
Journal ArticleDOI
Performance of a resonator-based interferometric fiber-optic gyroscope under the square wave phase bias modulation
TL;DR: In this article, the modulation period and amplitude of the typical square wave phase bias modulation (SWPBM) were proposed for a resonator-based interferometric fiber-optic gyroscope (R-IFOG).
Journal ArticleDOI
Strong coupling of an optomechanical system to an anomalously dispersive atomic medium
Haibin Wu,Min Xiao,Min Xiao +2 more
TL;DR: In this paper, a hybrid optomechanical system in which a membrane oscillator is coupled to a collective spin of ground states of an intracavity Λ-type three-level atomic medium is investigated.
Proceedings ArticleDOI
Tunable lossless slow and fast light in a four-level N-system
TL;DR: In this article, the authors investigate the propagation of a weak probe laser field in a medium of warm Rb atoms, controlled with two strong resonant pump fields tuned to the D1 and D2 optical transitions to form an N-scheme arrangement.
Journal ArticleDOI
The effect of broadened linewidth induced by dispersion on the performance of resonant optical gyroscope
Hao Zhang,Wenxiu Li,Peng Han,Xiaoyang Chang,Jiaming Liu,Jian Lin,Xia Xue,Fang Zhu,Yang Yang,Xiaojing Liu,Xiaofu Zhang,Anping Huang,Zhisong Xiao,Jiancheng Fang +13 more
TL;DR: In this article, the effect of linewidth broadening induced by anomalous dispersion on the sensitivity of ROG is discussed, and three kinds of definitions of minimum detectable angular rate of resonance optical gyroscope (ROG) are compared and the relations among them are investigated.
References
More filters
Journal ArticleDOI
Light speed reduction to 17 metres per second in an ultracold atomic gas
Lene Vestergaard Hau,Lene Vestergaard Hau,Stephen E. Harris,Zachary Dutton,Zachary Dutton,Cyrus H. Behroozi,Cyrus H. Behroozi +6 more
TL;DR: In this paper, an experimental demonstration of electromagnetically induced transparency in an ultracold gas of sodium atoms, in which the optical pulses propagate at twenty million times slower than the speed of light in a vacuum, is presented.
Journal ArticleDOI
Gain-assisted superluminal light propagation
TL;DR: Gain-assisted linear anomalous dispersion is used to demonstrate superluminal light propagation in atomic caesium gas and is observed to be a direct consequence of classical interference between its different frequency components in an anomalously dispersion region.
Journal ArticleDOI
Observation of ultraslow and stored light pulses in a solid.
A.V. Turukhin,V. S. Sudarshanam,M. S. Shahriar,Joseph A. Musser,Byoung S. Ham,Philip R. Hemmer +5 more
TL;DR: Low group velocities of light in an optically dense crystal of Pr doped Y2SiO5 are reported by using a sharp spectral feature in absorption and dispersion that is produced by resonance Raman excitation of a ground-state spin coherence.
Journal ArticleDOI
Superluminal and Slow Light Propagation in a Room-Temperature Solid
TL;DR: It is observed that ions in mirror sites are inversely saturable and cause superluminal light propagation, whereas ions in inversion sites experience conventional saturable absorption and produce slow light.