scholarly journals Nonstandard FDTD Simulation-Based Design of CROW Wavelength Splitters

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Naoki Okada ◽  
James B. Cole ◽  
Shigeki Yamada ◽  
Kensuke Ogawa ◽  
Yoshifumi Katayama
Keyword(s):  
Optical Waveguides ◽  
Optical Devices ◽  
Whispering Gallery Modes ◽  
Fdtd Simulation ◽  
High Q ◽  
Whispering Gallery ◽  
Simulation Based Design ◽  
Simulation Based ◽  
Fdtd Simulations ◽  
Difference Time

The finite-difference time-domain (FDTD) algorithm has been used in simulation-based designs of many optical devices, but it fails to reproduce high-Q whispering gallery modes (WGMs). On the other hand, the nonstandard (NS) FDTD algorithm can accurately compute WGMs and can be used to make simulation-based designs of WGM devices. Wavelength splitters using the coupled resonator optical waveguides (CROWs) based on WGM couplings have recently attracted attention because they are potentially ultracompact. In this paper, we design a CROW wavelength splitter using NS FDTD simulations and demonstrate high interchannel extinction ratios of over 20 dB.

scholarly journals A RESONANCE SYSTEM OF AN OPTOELECTRONIC OSCILLATOR BASED ON A TRANSMISSIONTYPE PLANAR OPTICAL DISK MICROCAVITY

2018 ◽  
Vol 42 (1) ◽  
pp. 60-66
Author(s):  
A. S. Zadorin ◽  
A. A. Lukina
Keyword(s):  
Traveling Wave ◽  
Optical Waveguides ◽  
Whispering Gallery Modes ◽  
Resonance System ◽  
Optoelectronic Oscillator ◽  
Disk Resonator ◽  
High Q ◽  
Optical Microresonators ◽  
Whispering Gallery ◽  
Planar Optical Waveguides

It is noted that the best technical characteristics of optoelectronic microwave self-oscillators (OESO) are reached in schemes employing high-Q optical microresonators (OMR) working in the traveling wave modes (TWM). A possibility of using disk OMRs excited by fundamental whispering gallery modes (WGM) has been considered. Multielement coupling devices (CD) for such resonators have been investigated. They are constructed on the basis of planar optical waveguides (POWG) located over the disk resonator surface in a region bounded by the outer and inner caustics of the WGM. Models of this device have been proposed. The corresponding calculations have been provided.

High-Q whispering gallery modes in pillar microcavities

2007 ◽  
Vol 32 (2-3) ◽  
pp. 123-126
Author(s):  
Y.-R. Nowicki-Bringuier ◽  
J. Claudon ◽  
C. Böckler ◽  
S. Reitzenstein ◽  
M. Kamp ◽  
...  
Keyword(s):  
Whispering Gallery Modes ◽  
High Q ◽  
Whispering Gallery

Selective excitation of whispering-gallery modes and Fano resonance in a high-Q micro-capillary resonator with cleaned-up spectrum

2019 ◽  
Vol 12 (6) ◽  
pp. 062003
Author(s):  
Mengyu Wang ◽  
Lingjun Meng ◽  
Xueying Jin ◽  
Bolin Cai ◽  
Yongchao Dong ◽  
...  
Keyword(s):  
Fano Resonance ◽  
Selective Excitation ◽  
Whispering Gallery Modes ◽  
High Q ◽  
Whispering Gallery

FDTD Simulation: Refractive Index and Single-Object Sensing Using a Whispering-Gallery-Modes Microring Resonator

2018 ◽  
Vol 36 (9) ◽  
pp. 1775-1781 ◽  
Author(s):  
Zhi-Hong Zhang ◽  
Si-Hui Shang ◽  
Mu-Neng Li ◽  
Shao-Yi Wu ◽  
Qin-Sheng Zhu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Microring Resonator ◽  
Whispering Gallery Modes ◽  
Fdtd Simulation ◽  
Single Object ◽  
Whispering Gallery

High-Q whispering gallery modes in a polymer microresonator with broad strain tuning

2015 ◽  
Vol 58 (11) ◽  
Author(s):  
ZhongHao Zhou ◽  
FangJie Shu ◽  
Zhen Shen ◽  
ChunHua Dong ◽  
GuangCan Guo
Keyword(s):  
Whispering Gallery Modes ◽  
High Q ◽  
Whispering Gallery

scholarly journals FDTD Simulation: Simultaneous Measurement of the Refractive Index and the Pressure Using Microdisk Resonator with Two Whispering-Gallery Modes

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3955
Author(s):  
Ping Zhang ◽  
Dongyue He ◽  
Chen Zhang ◽  
Zhiruo Yan
Keyword(s):  
Refractive Index ◽  
Second Order ◽  
Whispering Gallery Modes ◽  
Fdtd Simulation ◽  
Pressure Sensitivity ◽  
Sensitivity Matrix ◽  
Whispering Gallery ◽  
Sensing Applications ◽  
Novel Approach ◽  
Microdisk Resonator

In this paper, an approach to measure both the refractive index (RI) and the pressure simultaneously using two Whispering-Gallery Modes (WGMs) in a microdisk resonator is theoretically proposed. Due to the difference in the energy distribution of the first and second order WGMs, the sensitivity of two modes toward the variation of RI and pressure applied to the device show differences. An RI sensitivity of 29.07 nm/RIU and pressure sensitivity of 0.576 pm/kPa for WGM (1,36), and an RI sensitivity of 38.68 nm/RIU and a pressure sensitivity of 0.589 pm/kPa for WGM (2,28) are obtained through the 3D finite-difference time-domain (3D-FDTD) simulation. Dual parametric sensing can be achieved by solving the second-order inverse sensitivity matrix. Therefore, strain–optical coupling behavior is effectively eliminated. The dual sensing scheme we proposed provides a novel approach to overcome the difficulty of multi-sensing applications based on the flexible photonic device.

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