Fiber optic gyro development at Honeywell

Sanders, Glen A.; Sanders, S. J.; Strandjord, Lee K.; Qiu, Tiequn; Wu, Jianfeng; Smiciklas, Marc; Mead, Derek; Mosor, S.; Arrizon, Alejo; Ho, Waymon; Salit, M.

doi:10.1117/12.2228893

Cited by 70 publications

(22 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We can see from this formula the phase sensitivity is inversely proportional to the square of propagation velocity. The phase sensitivity between the acoustic and fiber-optic gyros can be calculated as

where f optic is the light frequency using 193 THz [ 16 , 17 , 18 ], and f acoustic is the sound frequency as 10 MHz which can propagated in air [ 19 , 20 ]. In this calculation we assumed the same ring radius R and angular velocity Ω for both devices.…”

Section: Methodsmentioning

confidence: 99%

MEMS Gyroscopes Based on Acoustic Sagnac Effect

Luo

Chen

et al. 2016

Micromachines

View full text Add to dashboard Cite

This paper reports on the design, fabrication and preliminary test results of a novel microelectromechanical systems (MEMS) device—the acoustic gyroscope. The unique operating mechanism is based on the “acoustic version” of the Sagnac effect in fiber-optic gyros. The device measures the phase difference between two sound waves traveling in opposite directions, and correlates the signal to the angular velocity of the hosting frame. As sound travels significantly slower than light and develops a larger phase change within the same path length, the acoustic gyro can potentially outperform fiber-optic gyros in sensitivity and form factor. It also promises superior stability compared to vibratory MEMS gyros as the design contains no moving parts and is largely insensitive to mechanical stress or temperature. We have carried out systematic simulations and experiments, and developed a series of processes and design rules to implement the device.

show abstract

Section: Methodsmentioning

confidence: 99%

MEMS Gyroscopes Based on Acoustic Sagnac Effect

Luo

Chen

et al. 2016

Micromachines

View full text Add to dashboard Cite

show abstract

“…En laboratoire, 10 µdeg/h (un tour en 4000 ans !) de stabilité sur un mois ont même été démontrés par iXblue [5] et par Honeywell [6], ce qui amène au nanoradian et à 10 -20 ! Si la réciprocité a été essentielle au succès du gyrofibre, elle n'aurait cependant pas été suffisante, et les différents problèmes ont pu être résolus par des solutions si efficaces que le terme « serendipity » a été utilisé pour les décrire.…”

Section: à Quoi Sert Un Gyro ?unclassified

“…Sa centrale LN 200 tactique (donc au deg/h) s'est vendue à 30 000 exemplaires [10]. Le leader incontesté de l'inertiel est Honeywell mais, archi-dominant en gyrolaser (75 % du marché), il ne propose le gyrofibre que pour les très hautes performances [6]. iXblue est aussi positionnée sur ce créneau « high end », avec 6000 centrales livrées, et ses succès en spatial (en collaboration avec Airbus Defense & Space) et en marine militaire confirment la performance de classe largement stratégique (100 µdeg/h) de la technologie.…”

Section: Les Grands Acteurs Du Domaineunclassified

Comprendre et apprécier le gyrofibre : le gyro aux performances ultimes ?

Lefèvre

2016

Photoniques

View full text Add to dashboard Cite

“…Ultra-high Q resonators play a critical role across a wide range of applications including ultranarrow linewidth lasers [1][2][3] , optical frequency combs [4][5][6] , optical gyroscopes 7 , optical atomic clocks 8 and quantum communications and computation [9][10][11][12][13] . These resonators, typically used for laser linewidth narrowing and frequency stabilization, have been relegated to benchtop and bulk-optic implementations.…”

Section: Introductionmentioning

confidence: 99%

422 Million Q Planar Integrated All-Waveguide Resonator with a 3.4 Billion Absorption Limited Q, Sub-MHz Linewidth and 3005 Finesse

Puckett

Liu

Chauhan

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

High Q optical resonators that are a key component for ultra-narrow linewidth lasers, frequency stabilization, precision spectroscopy and quantum applications. Integration of these resonators in a photonic waveguide wafer-scale platform is key to reducing their cost, size and power as well as sensitivity to environmental disturbances. However, to date, the intrinsic Q of integrated all-waveguide resonators has been relegated to below 150 Million for a non-etched waveguide resonator and 230 Million for a waveguide-coupled etched silica microresonator. Here, we report an all-waveguide Si3N4 resonator with an intrinsic Q of 422 Million and a 3.4 Billion absorption loss limited Q. The resonator linewidth measures at 453 kHz intrinsic linewidth, 906 kHz loaded linewidth with finesse of 3005. The corresponding linear loss of 0.060 dB/m is the lowest reported to date for an all-waveguide design with deposited upper cladding oxide. These are the highest intrinsic and absorption loss limited Q factors and lowest linewidth reported to date for a photonic integrated all-waveguide resonator. This level of performance is achieved through a careful reduction of scattering and absorption loss components and redeposition of a thin nitride layer. We quantify, simulate and measure the various loss contributions including scattering and absorption and describe a surface-state dangling bond absorption that we believe is passivated by the redeposited layer. In addition to the ultra-high Q and narrow linewidth, the resonator has a large optical mode area and volume, both critical for ultra-low laser linewidths and ultra-stable, ultra-low frequency noise reference cavities. These results demonstrate the performance of bulk optic and etched resonators can be realized in a photonic integrated solution, paving the way towards photonic integration compatible Billion Q cavities for precision scientific systems and applications such as nonlinear optics, atomic clocks, quantum photonics and high-capacity fiber communications systems on-chip.

show abstract

Fiber optic gyro development at Honeywell

Cited by 70 publications

References 10 publications

MEMS Gyroscopes Based on Acoustic Sagnac Effect

MEMS Gyroscopes Based on Acoustic Sagnac Effect

Comprendre et apprécier le gyrofibre : le gyro aux performances ultimes ?

422 Million Q Planar Integrated All-Waveguide Resonator with a 3.4 Billion Absorption Limited Q, Sub-MHz Linewidth and 3005 Finesse

Contact Info

Product

Resources

About