Impact of resonant dispersion on the sensitivity of intracavity phase interferometry and laser gyros

Hendrie, James; Lenzner, M.; Afkhamiardakani, Hanieh; Diels, J.‐C.; Arissian, Ladan

doi:10.1364/oe.24.030402

Cited by 18 publications

(13 citation statements)

References 20 publications

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“…For instance, in 1981, A. Kaplan and P. Meystre proposed the implementation of a nonlinearly induced non-reciprocity [ 33 ]. Other works applied the concept of a ’slow light’ [ 34 ] by introducing a giant dispersion to increase the Sagnac effect [ 24 , 35 , 36 , 37 , 38 , 39 ].…”

Section: Sagnac Effectmentioning

confidence: 99%

“…Later in the same year, two groups demonstrated independent studies of the Sagnac effect in bidirectional mode-locked dye laser [ 21 ] and bidirectional picosecond diode ring laser [ 22 ]. The latest works on gyroscopic measurements in bidirectional mode-locked laser showed a sensitivity of 10

rad [ 23 , 24 ]. These works confirm a significant reduction of the dead-band zone, which induced significant research and development interest in ultrafast lasers as a platform for gyroscopic measurements.…”

Section: Introductionmentioning

confidence: 99%

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Rotation Active Sensors Based on Ultrafast Fibre Lasers

Kudelin

Sugavanam

Chernysheva

2021

Sensors

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Gyroscopes merit an undeniable role in inertial navigation systems, geodesy and seismology. By employing the optical Sagnac effect, ring laser gyroscopes provide exceptionally accurate measurements of even ultraslow angular velocity with a resolution up to 10−11 rad/s. With the recent advancement of ultrafast fibre lasers and, particularly, enabling effective bidirectional generation, their applications have been expanded to the areas of dual-comb spectroscopy and gyroscopy. Exceptional compactness, maintenance-free operation and rather low cost make ultrafast fibre lasers attractive for sensing applications. Remarkably, laser gyroscope operation in the ultrashort pulse generation regime presents a promising approach for eliminating sensing limitations caused by the synchronisation of counter-propagating channels, the most critical of which is frequency lock-in. In this work, we overview the fundamentals of gyroscopic sensing and ultrafast fibre lasers to bridge the gap between tools development and their real-world applications. This article provides a historical outline, highlights the most recent advancements and discusses perspectives for the expanding field of ultrafast fibre laser gyroscopes. We acknowledge the bottlenecks and deficiencies of the presented ultrafast laser gyroscope concepts due to intrinsic physical effects or currently available measurement methodology. Finally, the current work outlines solutions for further ultrafast laser technology development to translate to future commercial gyroscopes.

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Section: Sagnac Effectmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Kudelin

Sugavanam

Chernysheva

2021

Sensors

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“…Rotation sensors or laser gyroscopes are of great interest to develop modern navigation systems. Although gyroscopic response was successfully realized in discrete element bidirectional mode-locked dye lasers [1][2][3], it is impractical in commercial systems. Fiber lasers are the most promising laser media to implement IPI owing to the possibility of producing ultrashort pulses with a compact and low-cost design [4][5][6][7].…”

Section: Implementing Ipi In Laser Gyroscopsmentioning

confidence: 99%

Colliding pulse mode-locked all polarization maintaining fiber gyrolaser

Afkhamiardakani¹,

Diels²

2019

Preprint

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A bidirectional all polarization maintaining fiber laser as a highly sensitive sensor for rotation is presented. This sensor is based on intracavity phase interferometry with application in inertial sensing, magnetometry, displacements and nonlinear index. The bios beat note of this gyroscopic laser is lowered to 166 KHz implementing a symmetric configuration including two parts of Er-doped fibers.

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“…One reason EPs have been of recent interest is because the sensitivity of the frequency difference between the eigenstates to an external perturbation, i.e., the scale factor, has been shown to diverge at an EP [16][17][18][19][20][21][22]. The boost in scale-factor sensitivity has now been demonstrated experimentally in passive and active fast-light cavities [21][22][23][24][25][26][27], optomechanical and nanoparticle detection schemes [30,31], and CRs including RLGs [32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Non-Hermitian gyroscopes: Can exceptional points increase sensor precision?

Smith

Chang

Shahriar³

2022

Optical and Quantum Sensing and Precision Metrology II

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We show that exceptional-point (EP) sensors are fundamentally limited by excess noise owing to eigenmode nonorthogonality, to the extent that the enhancement in precision (the magnitude of the scale-factor enhancement divided by the square-root of the linewidth-enhancement factor 1/2 | | / SK ) is never greater than unity. Indeed, in the vicinity of an EP a hole of reduced precision opens up in parameter space, where the precision drops rapidly to zero within regions of deadband or unbroken PT-symmetry. Outside of these zero-sensitivity regions the precision is nonzero, approaching its maximum value of1 SK  at the EP. EPs, therefore, represent discontinuous transitions between these two regimes. We find that this behavior is universal, with the hole appearing regardless of the type of EP. Therefore, EPs should generally be avoided for sensors that utilize laser cavities. Moreover, we illustrate that a laser containing a medium at the critical anomalous dispersion is simply operating at an EP. Therefore, this limitation also applies to laser sensors based on fast light.

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Impact of resonant dispersion on the sensitivity of intracavity phase interferometry and laser gyros

Cited by 18 publications

References 20 publications

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Rotation Active Sensors Based on Ultrafast Fibre Lasers

Colliding pulse mode-locked all polarization maintaining fiber gyrolaser

Non-Hermitian gyroscopes: Can exceptional points increase sensor precision?

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