Highest bias stability fiber-optic gyroscope SRS-5000

Korkishko, Yu. N.; Fedorov, V. A.; Prilutskiy, V. E.; Ponomarev, V. G.; Fedorov, I. V.; Кострицкий, С. М.; Morev, I. V.; Obuhovich, D. V.; Prilutskiy, S. V.; Zuev, A.I.; Varnakov, V. K.

doi:10.1109/inertialsensors.2017.8171490

Cited by 25 publications

(7 citation statements)

References 3 publications

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“…Companies like Exalos AG in Zurich, Switzerland, have made significant strides in this regard by developing SLDs that exhibit reduced susceptibility to wavelength shifts due to temperature or aging. Also, FOG products equipped with broadband SLDs are under popular investigation 185 . These SLDs are ideal optical sources in FOGs due to their low cost, small size, reliability, stability, and low power consumption 184,186 .…”

Section: Optical Gyroscopesmentioning

confidence: 99%

Low-coherence semiconductor light sources: devices and applications

Lu,

Alkhazragi,

Wang

et al. 2024

npj Nanophoton.

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Since the invention of the laser, there have been countless applications that were made possible or improved through exploiting its multitude of unique advantages. Most of these advantages are mainly due to the high degree of coherence of the laser light, which makes it directional and spectrally pure. Nevertheless, many fields require a moderate degree of temporal or spatial coherence, making conventional lasers unsuitable for these applications. This has brought about a great interest in partially coherent light sources, especially those based on semiconductor devices, given their efficiency, compactness, and high-speed operation. Here, we review the development of low-coherence semiconductor light sources, including superluminescent diodes, highly multimode lasers, and random lasers, and the wide range of applications in which they have been deployed. We highlight how each of these applications benefsits from a lower degree of coherence in space and/or time. We then discuss future potential applications that can be enabled using new types of low-coherence light.

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Section: Optical Gyroscopesmentioning

confidence: 99%

Low-coherence semiconductor light sources: devices and applications

Lu,

Alkhazragi,

Wang

et al. 2024

npj Nanophoton.

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“…In FOG, the angle random walk (ARW) is a measure of random phase noise, such as thermal noise, photo shot noise in the detector, electronic and relative intensity noises. All the main noise factors under the auxiliary modulation depth π/2 can be evaluated according to the following equation [12]:…”

Section: Structure and Operation Principlementioning

confidence: 99%

Low-Noise Closed-Loop FOG Driven by Two Broadband Sources

Yang

Yan

et al. 2019

J. Lightwave Technol.

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We propose and demonstrate experimentally a low noise closed-loop fiber optic gyroscope (FOG) driven by two broadband sources simultaneously. The basic characteristic of built-up super broadband light source (SBLS) consists of two superluminescent diodes (SLDs) with different wavelengths was designed and analyzed. The dispersion characteristic of half-wave voltage of multifunction integrated optical circuit (MIOC) was investigated theoretically and experimentally. The tested results agree well with the theoretical model and confirm that the customized MIOC can operate well over a large spectral bandwidth. An experimental FOG driven by the SBLS was built with a solid-core polarization maintaining photonic crystal fiber coil and the closed-loop operation was realized well. Its bias drift and scale factor were tested preliminarily and high performance is achieved compared with the FOGs with single SLD source.

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“…A N interferometric fiber-optic gyroscope (FOG) is a device that measures the rotation rate by making use of the Sagnac effect, which induces a phase difference between two counterpropagating light waves traveling in the same fiber coil [1]- [3]. Because of their high precision and stability, FOGs have been widely used in numerous applications, such as satellite stabilization, inertial navigation, and rotational seismometers [4]- [6].…”

Section: Introductionmentioning

confidence: 99%