Single-waveguide-based microresonators for optical sensing

Zhuoran Wang; Lei Guan; Yuren Chen; Li Dong; Guohui Yuan

doi:doi:10.3788/COL201715.010006

Chinese Optics Letters, 2017, 15 (1): 010006, Published Online: Jul. 26, 2018

Single-waveguide-based microresonators for optical sensing Download： 917次

Zhuoran Wang Lei Guan Yuren Chen Li Dong Guohui Yuan ^*

Author Affiliations

School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China

Figures & Tables

Fig. 1. Illustration of the DSR resonator.

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Fig. 2. Illustrations of equivalent structures of DSRs. The MZI structure is highlighted in the gray area and the black waveguide forms the microring resonator structure.

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Fig. 3. (a) Variation of ER and (b) the variation of the Q factor by changing mR and α0.

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Fig. 4. Schematic of (a) the variation of ER and (b) the variation of the Q factor by changing K1 and K2.

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Fig. 5. Optimal transmission spectrum of the DSR device (Solid line) and the dash line represents the transmission spectrum of the MZI structure. The inset shows the enlarged resonance peak at 1.55 μm.

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Fig. 6. Schematic of (a) the variations of the transmission spectra with change of effective refractive index and (b) the relationship between the resonant wavelength drift and the change of effective refractive index.

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Fig. 7. Illustration of the T-DSR.

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Fig. 8. Spectrum of the T-DSR.

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Table1. Geometry Parameters for DSR Devices

Symbol	Value (μm)
$R_{1}$	5
$R_{2}$	6.8
$R_{3}$	6.9
$R_{4}$	7.0
$L_{1}$	15
$L_{2}$	20
$L_{S 1}$	5
$L_{S 2}$	4.6

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Table2. Sensing Performance Comparisons of Microring, Microdisk Resonator and DSR Device

Performance Parameter	Microring Resonator	Microdisk Resonator	DSR
$Q$	$2.22 \times 10^{4}$	$1.52 \times 10^{4}$	$1.23 \times 10^{5}$
FSR (nm)	22.3	18.8	120
ER (dB)	18.9	6.9	62.1
$S$ (nm/RIU)	38.7	63.4	698.5

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Zhuoran Wang, Lei Guan, Yuren Chen, Li Dong, Guohui Yuan. Single-waveguide-based microresonators for optical sensing[J]. Chinese Optics Letters, 2017, 15(1): 010006.

Single-waveguide-based microresonators for optical sensing Download： 917次

Fig. 1. Illustration of the DSR resonator.

Fig. 2. Illustrations of equivalent structures of DSRs. The MZI structure is highlighted in the gray area and the black waveguide forms the microring resonator structure.

Fig. 3. (a) Variation of ER and (b) the variation of the Q factor by changing mR and α0.

Fig. 4. Schematic of (a) the variation of ER and (b) the variation of the Q factor by changing K1 and K2.

Fig. 5. Optimal transmission spectrum of the DSR device (Solid line) and the dash line represents the transmission spectrum of the MZI structure. The inset shows the enlarged resonance peak at 1.55 μm.

Fig. 6. Schematic of (a) the variations of the transmission spectra with change of effective refractive index and (b) the relationship between the resonant wavelength drift and the change of effective refractive index.

Fig. 7. Illustration of the T-DSR.

Fig. 8. Spectrum of the T-DSR.

Table1. Geometry Parameters for DSR Devices

Table2. Sensing Performance Comparisons of Microring, Microdisk Resonator and DSR Device

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Single-waveguide-based microresonators for optical sensing Download： 917次

Fig. 1. Illustration of the DSR resonator.

Fig. 2. Illustrations of equivalent structures of DSRs. The MZI structure is highlighted in the gray area and the black waveguide forms the microring resonator structure.

Fig. 3. (a) Variation of ER and (b) the variation of the Q factor by changing mR and α0.

Fig. 4. Schematic of (a) the variation of ER and (b) the variation of the Q factor by changing K1 and K2.

Fig. 5. Optimal transmission spectrum of the DSR device (Solid line) and the dash line represents the transmission spectrum of the MZI structure. The inset shows the enlarged resonance peak at 1.55 μm.

Fig. 6. Schematic of (a) the variations of the transmission spectra with change of effective refractive index and (b) the relationship between the resonant wavelength drift and the change of effective refractive index.

Fig. 7. Illustration of the T-DSR.

Fig. 8. Spectrum of the T-DSR.

Table1. Geometry Parameters for DSR Devices

Table2. Sensing Performance Comparisons of Microring, Microdisk Resonator and DSR Device

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