scholarly journals Optically-controlled extinction ratio and Q-factor tunable silicon microring resonators based on optical forces

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Yun Long ◽  
Jian Wang
Keyword(s):  
Extinction Ratio ◽  
Microring Resonators ◽  
Q Factor ◽  
Optical Forces

scholarly journals High-Q-Factor Tunable Silica-Based Microring Resonators

Photonics ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 256
Author(s):  
Yue-Xin Yin ◽  
Xiao-Pei Zhang ◽  
Xiao-Jie Yin ◽  
Yue Li ◽  
Xin-Ru Xu ◽  
...  
Keyword(s):  
Optical Communications ◽  
Microring Resonator ◽  
Microring Resonators ◽  
Q Factor ◽  
Notch Depth ◽  
Critical Coupling ◽  
Practical Application ◽  
Coupling Condition ◽  
High Q ◽  
Racetrack Resonator

A high-Q-factor tunable silica-based microring resonator (MRR) is demonstrated. To meet the critical-coupling condition, a Mach–Zehnder interferometer (MZI) as the tunable coupler was integrated with a racetrack resonator. Then, 40 mW electronic power was applied on the microheater on the arm of MZI, and a maximal notch depth of about 13.84 dB and a loaded Q factor of 4.47 × 106 were obtained. The proposed MRR shows great potential in practical application for optical communications and integrated optics.

scholarly journals High-Q-Factor Silica-Based Racetrack Microring Resonators

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 43
Author(s):  
Yue-Xin Yin ◽  
Xiao-Jie Yin ◽  
Xiao-Pei Zhang ◽  
Guan-Wen Yan ◽  
Yue Wang ◽  
...  
Keyword(s):  
Optical Communications ◽  
External Cavity ◽  
Microring Resonators ◽  
Q Factor ◽  
Notch Depth ◽  
Planar Lightwave Circuits ◽  
High Q ◽  
External Cavity Lasers ◽  
Planar Lightwave ◽  
Cavity Lasers

In this paper, ultrahigh-Q factor racetrack microring resonators (MRRs) are demonstrated based on silica planar lightwave circuits (PLCs) platform. A loaded ultrahigh-Q factor Qload of 1.83 × 106 is obtained. The MRRs are packaged with fiber-to-fiber loss of ~5 dB. A notch depth of 3 dB and ~137 pm FSR are observed. These MRRs show great potential in optical communications as filters. Moreover, the devices are suitable used in monolithic integration and hybrid integration with other devices, especially in external cavity lasers (ECLs) to realize ultranarrow linewidths.

Controlling the Extinction Ratio of Microring Resonators by Perovskite Nonlinearity

2021 ◽  
Author(s):  
Feifan Wang ◽  
Lianfeng Zhao ◽  
Hwaseob Lee ◽  
Yahui Xiao ◽  
Tiantian Li ◽  
...  
Keyword(s):  
Extinction Ratio ◽  
Microring Resonators

The Influence of Glucose Concentration to Resonant Wavelength Shift of Polymer-Based Microring Resonators

2015 ◽  
Vol 1112 ◽  
pp. 32-36 ◽  
Author(s):  
Budi Mulyanti ◽  
Lilik Hasanah ◽  
Tommi Hariyadi ◽  
Rischa Novitasari ◽  
Arjuni B. Pantjawati ◽  
...  
Keyword(s):  
Glucose Concentration ◽  
Free Spectral Range ◽  
Circular Waveguide ◽  
Glucose Sensing ◽  
Resonant Wavelength ◽  
Microring Resonators ◽  
Wavelength Shift ◽  
Q Factor ◽  
Incident Wavelength ◽  
Resonant Wavelength Shift

Microring resonators (MRRs) is a compact and multi-functioned device which is mainly characterized by free spectral range (FSR) and quality factor (Q-factor). In this paper, the influence of glucose concentration to the resonant wavelength shift of MRRs is presented. The calculation was carried out using semi-numerical method for different values of FSR and Q-factor. The parameters used in the calculation including incident wavelength, ring radii of circular waveguide, gap sizes between circular and straight waveguides, the dimension of both waveguides, and refractive index of polymer, SiO2 and glucoce solution. The results show that glucose affects the resonant wavelength shift for each values of FSR and Q-factor. The increase of the glucose concentration causes the increase of the resonant wavelength shift, therefore this polymer-based MRR’s can be used for glucose sensing application.

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