Structure optimization of small-diameter polarization-maintaining photonic crystal fiber for mini coil of spaceborne miniature fiber-optic gyroscope

Song, Ningfang; Cai, Wei; Song, Jingming; Jin, Jing; Wu, Chongqing

doi:10.1364/ao.54.009831

Cited by 42 publications

(15 citation statements)

References 11 publications

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“…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

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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.

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Section: Methodsmentioning

confidence: 99%

MEMS Gyroscopes Based on Acoustic Sagnac Effect

Luo

Chen

et al. 2016

Micromachines

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“…Numerical simulations were conducted to investigate the value of the asymmetry degree χ with the perfect match layer (PML) boundary condition. The scanning electron micrographs of the PANDA fiber (PM1550B-80/135, FiberHome Telecommunication Technologies Co., Ltd.) and a kind of small diameter PM-PCF designed for miniature FOGs (FiberHome Telecommunication Technologies Co., Ltd.) [15] are shown in Fig. 4.…”

Section: Numerical Simulationmentioning

confidence: 99%

Transverse Magneto-Optic Error of a Miniature Solid-Core Photonic-Crystal Fiber Optic Gyroscope

Cai

Song

et al. 2019

IEEE Access

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The transverse magneto-optic error is a significant nonreciprocal error of fiber optic gyroscopes, particularly for the miniature fiber optic gyroscope. In this paper, the transverse magneto-optic error of a solid-core photonic-crystal fiber optic gyroscope is theoretically analyzed and experimentally measured, as well as compared with that of the conventional fiber optic gyroscopes. The results show that the transverse magneto-optic error per turn of the miniature photonic-crystal fiber optic gyroscope is ∼ 3.5 times smaller than that of the conventional fiber optic gyroscopes. A thinner µ-metal shield can be used in a miniature photonic-crystal fiber optic gyroscope, resulting in less cost and weight. Meanwhile, the experimental and the calculated results agree well with each other, which illustrates that the transverse magneto-optic error derives mainly from the bend-induced asymmetry distribution of the refractive index in fiber. Considering the remarkable properties of the solid-core photonic-crystal fibers, they are the good candidates for the future miniature fiber optic gyroscopes.

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“…Based on the type of sensor, diversity of designs and parameters can be optimized: adjustable cavity length, structure modification [25][26][27][28], as well as metrological properties, such as: resolution, precision, sensitivity, accuracy [29,30]. Many researchers contribute to determining the properties and parameters of various materials and structures [31,32].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the ZnO ALD Coating of a Photonic Microsphere-Based Temperature Sensor

Listewnik¹,

Bechelany²,

Jędrzejewska‐Szczerska³

2021

Preprint

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This study presents of the microsphere-based fiber-optic sensor with the ZnO ALD coating thickness of 100 nm and 200 nm for temperature measurements. Metrological properties of the sensor were investigated over the temperature range of 100°C to 300°C, with a 10°C step. The interferometric signal is used to control whether the microstructure is intact. Spectrum shift of a reflected signal is used to conclude changes in measured parameter for the sensor with a 100 nm coating, while the reflected signal intensity is an indicator during measurements executed by a sensor with a 200 nm coating. With changing temperature, the peak position or intensity of a reflected signal also changes. The R2 coefficient of the presented sensors indicates a linear fit of over 0.99 to the obtained data. The sensitivity of the sensors, investigated in this study, equals 103.5 nW/°C and 0.019 nm/°C for ZnO thickness of 200 nm and 100 nm, respectively.

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Structure optimization of small-diameter polarization-maintaining photonic crystal fiber for mini coil of spaceborne miniature fiber-optic gyroscope

Cited by 42 publications

References 11 publications

MEMS Gyroscopes Based on Acoustic Sagnac Effect

MEMS Gyroscopes Based on Acoustic Sagnac Effect

Transverse Magneto-Optic Error of a Miniature Solid-Core Photonic-Crystal Fiber Optic Gyroscope

Optimization of the ZnO ALD Coating of a Photonic Microsphere-Based Temperature Sensor

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