Chinese Optics Letters, Volume. 18, Issue 12, 120601(2020)
Near-navigation-grade interferometric fiber optic gyroscope with an integrated optical chip
Figures & Tables(6)
Fig. 1. (a) Schematic illustration of the IFOG based on an IOC. IOC, integrated optical chip; IOMC, integrated optical modulator chip; SDC, signal detection circuit; SLD, superluminescent diode; PD, photodiode; Y1/Y2, Y-branch; P, polarizer; PM, phase modulator; ADC/DAC, analog-to-digital/digital-to-analog converter; FPGA, field-programmable gate array. (b) Configuration of the IOC layout and (c) IOC package structure.
Fig. 3. Bias instabilities of IFOGs with IOC and discrete optical components.
Table 1. Measured Results of the IOC
View tableView in ArticleTable 1. Measured Results of the IOC
IOC Performances Values SLD Optical power (μW) 149 Central wavelength (nm) 1300.21 Linewidth (nm) 41 Extinction ratio (dB) 0.3 PD Responsivity (A/W) 0.88 3 dB bandwidth (MHz) 6 Noise voltage (mV) 0.49 Coupler Splitting ratio 50.6:49.4 Power consumption (W, to ) 1.26
Table 2. Measured Results of the IFOGs Based on an IOC
View tableView in ArticleTable 2. Measured Results of the IFOGs Based on an IOC
IFOG #1 #2 #3 Average diameter (cm) 3.8 4.5 4.5 Fiber length (m) 270 500 500 Measured scale factor 17,000 37,000 37,000 Measured in-run bias instability (deg/h) 0.13 0.018 0.0073 ARW ( ) 0.1 0.014 0.0033
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Kejun Shang, Ming Lei, Qiang Xiang, Yonglin Na, Lizhe Zhang, Huaiyong Yu, "Near-navigation-grade interferometric fiber optic gyroscope with an integrated optical chip," Chin. Opt. Lett. 18, 120601 (2020)
Paper Information
Category: Fiber Optics and Optical Communications
Received: Jun. 7, 2020
Accepted: Aug. 11, 2020
Published Online: Sep. 27, 2020
The Author Email: Ming Lei (leiming1998@yeah.net)
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