An overview of fiber-optic gyroscopes

Bergh, Ralph A.; Lefèvre, H. C.; Shaw, H. J.

doi:10.1109/jlt.1984.1073580

Cited by 308 publications

(80 citation statements)

References 84 publications

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“…For an IFOG, the detected power PD could be written with the terms of the optical power of the surviving portions of two interfering waves as follows (Bergh et al 1984):…”

Section: Silica On Silicon Waveguide Ring Resonatormentioning

confidence: 99%

Direct-Coupled Large-Diameter Silica on Silicon Waveguide Ring Resonator Used in Microoptic Gyro

Guo

Shi

Zhao

et al. 2011

International Journal of Optomechatronics

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A kind of direct-coupled large-diameter silica on silicon waveguide ring resonator used in microoptic gyro with 4 cm diameter was presented. An optical and electromechanical test platform was designed to investigate the performance of the ring resonator. The resonance curve, demodulation curve and three relative important resonator parameters were obtained. The free spectral range of the resonator, the full width at half maximum of the resonance curve and the finesse of the resonator, are 3 GHz, 73 MHz and 41, respectively. Open-loop experiments of resonator are set up using the acousto-optic frequency modulation spectroscopy technique. The output of MOG is investigated by the platform rotate and equivalent gyro rotate. The slope of the linear fit is about 3.154 mV/( /s) based on the À50$50 /s rotating rates and 0.330 mV/( /s) based on the À900$900 KHz equivalent frequency shift, respectively. The demodulation curve shows a strongly nonlinear and the linear approximation has a great limitation.

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“…For an IFOG, the detected power PD could be written with the terms of the optical power of the surviving portions of two interfering waves as follows (Bergh et al 1984):…”

Section: Silica On Silicon Waveguide Ring Resonatormentioning

confidence: 99%

Direct-Coupled Large-Diameter Silica on Silicon Waveguide Ring Resonator Used in Microoptic Gyro

Guo

Shi

Zhao

et al. 2011

International Journal of Optomechatronics

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“…±ÓË ÐÂÎËÚËË ÄÓÂÜÇÐËâ ÊÂ ÄÓÇÏâ t AEÇÎËÕÇÎßÐÑÇ ÊÇÓÍÂÎÑ ÔÏÇÔÕËÕÔâ ÐÂ ÓÂÔÔÕÑâÐËÇ [36,126]). ¥ÂÐÐÑÇ ÖÕÄÇÓÉAEÇÐËÇ ÍÂÍ ÑAEÐÂ ËÊ ÄÑÊÏÑÉÐÑÔÕÇÌ ÑÃÝâÔÐÇÐËâ à××ÇÍÕÂ ³ÂÐßâÍÂ ÒÓËÄÑAEËÕÔâ Ä ÓÂÃÑÕÂØ [18,80], Ä ÑÃÊÑÓÂØ [36,74,126,239,253], Ä ÑÃÊÑÓÐÑÌ ÚÂÔÕË ÓÂÃÑÕÞ [9], Ä ÏÑÐÑÅÓÂ×ËË ÒÑ ÄÑÎÑÍÑÐÐÑÌ ÅËÓÑÔÍÑÒËË [75], Ä ÍÖÓÔÇ ÄÑÎÐÑÄÑÌ ÑÒÕËÍË [254], Ä AEÄÖØ ÒÑÔÎÇAEÐËØ ËÊAEÂÐËâØ ×ËÊËÚÇÔÍÑÌ àÐÙËÍÎÑÒÇAEËË [248,249] Ë Ä ÓâAEÇ AEÓÖÅËØ ÓÂÃÑÕ (ÔÏ., ÐÂÒÓËÏÇÓ, [117,126] …”

Section: £äçAeçðëçmentioning

confidence: 99%

The Sagnac effect: correct and incorrect explanations

Malykin¹

2000

Usp. Fiz. Nauk

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ªÊÄÇÔÕÐÑ, ÚÕÑ à××ÇÍÕ ³ÂÐßâÍÂ ÕÂÍÉÇ ÐÂØÑAEËÕ ÂAEÇÍ-ÄÂÕÐÑÇ ÑÃÝâÔÐÇÐËÇ Ä ÓÂÏÍÂØ ÑÃÜÇÌ ÕÇÑÓËË ÑÕÐÑÔËÕÇÎßÐÑ-ÔÕË (°´°) (ÔÏ., ÐÂÒÓËÏÇÓ, [34,35] ²ÂÊÐÑÔÕß ×ÂÊ ÄÔÕÓÇÚÐÞØ ÄÑÎÐ ÐÂ ÄÞØÑAEÇ ÍÑÎßÙÂ, ÑÃÖÔ-ÎÑÄÎÇÐÐÂâ à××ÇÍÕÑÏ ³ÂÐßâÍÂ, ÔÑÔÕÂÄÎâÇÕ 4. ªÐÕÇÓ×ÇÓÑÏÇÕÓ ÐÇÒÑAEÄËÉÇÐ, ÔÓÇAEÂ ÔÑÄÇÓÛÂÇÕ ÒÑ-ÔÕÖÒÂÕÇÎßÐÑÇ AEÄËÉÇÐËÇ, ÒÓË àÕÑÏ ÇÇ ÅÓÂÐËÙÞ ÒÇÓÇÏÇ-ÜÂáÕÔâ: £ÞÓÂÉÇÐËÇ (14) [5,6,36,38,74,75,91,126,128,245 ÅAEÇ n cal ì ÚÂÔÕÑÕÂ ÔÄÇÕÂ. ¥ÂÉÇ Ä ÔÎÖÚÂÇ ÑÕÔÖÕÔÕÄËâ ÑÒÕËÚÇÔÍÑÌ ÔÓÇAEÞ Ä ËÐÕÇÓ-×ÇÓÑÏÇÕÓÇ ÏÞ ÒÑÎÖÚËÎË ÊÂÄÞÛÇÐÐÞÌ Ä AEÄÂ ÓÂÊÂ ÒÑ ÔÓÂÄÐÇÐËá Ô ÄÞÓÂÉÇÐËÇÏ (7) ÓÇÊÖÎßÕÂÕ, ÍÓÑÏÇ ÕÑÅÑ, ÄÇÎËÚËÐÂ F S Ä ÄÞÓÂÉÇÐËË (30) ÒÓÑÒÑÓÙËÑÐÂÎßÐÂ n 2 . ¥Îâ ÒÑÎÖÚÇÐËâ "ÒÓÂÄËÎßÐÑÅÑ" ÄÞÓÂÉÇÐËâ ÂÄÕÑÓÞ, ËÔÒÑÎß-ÊÖáÜËÇ AEÂÐÐÞÌ ÏÇÕÑAE ÄÞÚËÔÎÇÐËâ ÄÇÎËÚËÐÞ à××ÇÍÕÂ ³ÂÐßâÍÂ, ÒÓËÐËÏÂáÕ AEÎËÐÞ ÑÒÕËÚÇÔÍËØ ÒÖÕÇÌ AEÎâ ÄÔÕÓÇÚÐÞØ ÄÑÎÐ ÓÂÄÐÞÏË: ÓÂÔÒÓÑÔÕÓÂÐÇÐËâ ÄÑÎÐÑÄÑÅÑ ÒÂÍÇÕÂ). £ÑÎÐÑÄÞÇ ÚËÔÎÂ Ë AEÎËÐÞ ÒÖÕÇÌ AEÎâ ÄÔÕÓÇÚÐÞØ ÄÑÎÐ Ä ÔËÔÕÇÏÇ ÑÕÔÚÇÕÂ K ÔÑÔÕÂÄâÕ ÔÑÑÕÄÇÕÔÕÄÇÐÐÑ ÂÒÑÏÐËÏ, ÚÕÑ ÕÂÍÑÌ ÉÇ ÑÛËÃÑÚÐÞÌ ÓÇÊÖÎßÕÂÕ ÃÞÎ ÒÑÎÖÚÇÐ Ä ÓÂÃÑÕÂØ [111,112,114,124,125,140] Different explanations of the Sagnac effect are discussed. It is shown that this effect is a consequence of the composition of velocities law of relativity theory and that it can also be explained adequately within the framework of general relativity. When certain rotation velocity restrictions are imposed, the Sagnac effect can be attributed to the difference in the time retardation (phase shift) of material particle wave functions in the scalar (vector) gravity potential of the inertial forces in a rotating reference frame for counter-propagating waves. It is also shown that all the non-relativistic interpretations of the Sagnac effect, which unfortunately are sometimes found in scientiéc papers, monographs and textbooks, are wrong in principle, even though the results they yield are accurate up to relativistic corrections in some special cases.

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“…The interferometric fiber-optic gyroscope (IFOG) is a representative fiber-optic sensor based on the Sagnac effect to measure absolute rotation rates in inertial reference frames [1][2]. IFOGs have many advantages over conventional gyroscopes, such as long life, high reliability, light weight, low cost, and so on.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Temperature Dependence of Thermally Induced Transient Effect in Interferometric Fiber-optic Gyroscopes

Choi¹

2011

Journal of the Optical Society of Korea

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Thermal characteristics, such as diffusivity and temperature induced change in the fiber mode index of rotation sensing fiber coil are critical factors which determine the time varying, thermo-optically induced bias drift of interferometric fiber-optic gyroscopes (IFOGs). In this study, temperature dependence of the transient effect is analyzed in terms of the thermal characteristics of the fiber coil at three different temperatures. By applying an analytic model to the measured bias in the experiments, comprehensive thermal factors of the fiber coil could be extracted effectively. The validity of the model was confirmed by the fact that the extracted values are reasonable results in comparison with well known properties of the materials of the fiber coil. Temperature induced changes in the critical factors were confirmed to be essential in compensating the transient effect over a wide temperature range.

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An overview of fiber-optic gyroscopes

Cited by 308 publications

References 84 publications

Direct-Coupled Large-Diameter Silica on Silicon Waveguide Ring Resonator Used in Microoptic Gyro

Direct-Coupled Large-Diameter Silica on Silicon Waveguide Ring Resonator Used in Microoptic Gyro

The Sagnac effect: correct and incorrect explanations

Analysis of Temperature Dependence of Thermally Induced Transient Effect in Interferometric Fiber-optic Gyroscopes

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