• Infrared and Laser Engineering
  • Vol. 50, Issue 8, 20210044 (2021)
Jingtong Geng, Liu Yang*, Shuhua Zhao, and Yonggang Zhang
Author Affiliations
  • College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin 150001, China
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    DOI: 10.3788/IRLA20210044 Cite this Article
    Jingtong Geng, Liu Yang, Shuhua Zhao, Yonggang Zhang. Recent development of resonant micro cavity in resonant micro-optical gyro[J]. Infrared and Laser Engineering, 2021, 50(8): 20210044 Copy Citation Text show less
    Resonator structure based on MZI
    Fig. 1. Resonator structure based on MZI
    Experimental device diagram
    Fig. 2. Experimental device diagram
    Three ring CROW resonator
    Fig. 3. Three ring CROW resonator
    Spiral resonator based on InP substrate
    Fig. 4. Spiral resonator based on InP substrate
    Hybrid resonator based on waveguide coupler and fiber
    Fig. 5. Hybrid resonator based on waveguide coupler and fiber
    Silicon based SiO2 ring resonator with grating
    Fig. 6. Silicon based SiO2 ring resonator with grating
    Polymer resonator structure
    Fig. 7. Polymer resonator structure
    Cross section of the waveguide
    Fig. 8. Cross section of the waveguide
    Resonator typeIntegration difficultySize
    Monolithic optical waveguide ring resonator[12]EasyCentimeter
    Echo Wall mode resonator[14]EasyMicron
    Multi ring optical waveguide ring resonator[16]EasyCentimeter
    Spiral coil resonator[20]ModerateMillimeter
    Short fiber hybrid integrated resonator[21]ModerateCentimeter
    Table 1. Structural characteristics of resonators
    MaterialsTransmission loss/ dB·cm−1Q
    SiO2[23]10−2109
    Polymer[25]10−2105
    Si3N4[27]10−4108
    CaF2[29]10−41011
    SOI[32]10−2107
    Table 2. Performance parameters of materials
    Jingtong Geng, Liu Yang, Shuhua Zhao, Yonggang Zhang. Recent development of resonant micro cavity in resonant micro-optical gyro[J]. Infrared and Laser Engineering, 2021, 50(8): 20210044
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