Laser & Optoelectronics Progress, Volume. 57, Issue 23, 230004(2020)
Research Progress of Mid-Infrared Micro-Ring Resonator and Its Application
Fig. 3. SEM images of each micro-ring resonator based on different material platforms. (a) SEM image of Ge ring resonator based on GeOI material platform[21]; (b) SEM image of GaAs ring resonator on top of a Al0.2Ga0.8As buffer layer[43]; (c)(d) SEM image of Ge ring resonator with air cladding and its quality factor value at operating wavelength[
Fig. 5. Schematic of cascaded micro-ring resonator based on Vernier effect for sensing field[47]
Fig. 6. Experimental results. (a) Transmission spectrum of filtering and sensing micro-ring; (b) wavelength shift of transmission spectrum of sensing micro-ring in the presence of detected substance; (c) total transmission spectrum of the cascaded micro-ring resonator based on Vernier effect; (d) wavelength shift of transmission spectrum of cascaded micro-ring resonator in the presence of detected substance
Fig. 7. Schematic of optical frequency comb generation based on micro-ring resonator[66]
Fig. 8. Experimental results of mid-infrared Kerr optical frequency comb. (a) Kerr optical frequency comb based on Si3N4 ring resonator[65]; (b) Kerr optical frequency comb based on non-etched silicon ring resonator[15]; (c) coherent mid-infrared optical frequency comb based on four-wave mixing and Raman effect interaction in silicon ring resonator[
Fig. 9. Property results of Ge strip waveguide. (a) Schematic of Ge-on-Si strip waveguide; (b) Schematic of Ge strip waveguide mode field(@3.5 μm); (c) dispersion of Ge strip waveguide
Fig. 10. Simulation results at 3.5 μm wavelength pump. (a) Input the pump light(@3.5 μm, pump power is 80 mW ); (b) output the Kerr optical frequency comb
Fig. 11. Simulation results at 4 μm wavelength pump. (a) Input the pump light(@4 μm, pump power is 112 mW ); (b) output the Kerr optical frequency comb
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Yujie Hu, Shuxiao Wang, Dawei Wang, Mingbin Yu, Yan Cai. Research Progress of Mid-Infrared Micro-Ring Resonator and Its Application[J]. Laser & Optoelectronics Progress, 2020, 57(23): 230004
Category: Reviews
Received: Feb. 19, 2020
Accepted: Apr. 13, 2020
Published Online: Nov. 26, 2020
The Author Email: Cai Yan (yan.cai@mail.sim.ac.cn)