scholarly journals Simulation and Analysis of Single-Mode Microring Resonators in Lithium Niobate Thin Films

Crystals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 342 ◽  
Author(s):  
Huangpu Han ◽  
Bingxi Xiang ◽  
Jiali Zhang
Keyword(s):  
Thin Films ◽  
Lithium Niobate ◽  
Free Spectral Range ◽  
Single Mode ◽  
Design Parameters ◽  
Microring Resonators ◽  
Cladding Layer ◽  
Resonator Design ◽  
Key Issues ◽  
Difference Time

The single-mode microring resonators on lithium niobate thin films were designed and simulated using 2.5-D variational finite difference time domain mode simulations from Lumerical mode Solutions. The single-mode conditions and the propagation losses of lithium niobate planar waveguide with different SiO2 cladding layer thicknesses were studied and compared systematically. The optimization of design parameters such as radii of microrings and gap sizes between channel and ring waveguides were determined. The key issues affecting the resonator design such as free spectral range and Quality Factor were discussed. The microring resonators had radius R = 20 μm, and their transmission spectrum had been tuned using the electro-optical effect.

scholarly journals Design, Simulation, and Analysis of Optical Microring Resonators in Lithium Tantalate on Insulator

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 480
Author(s):  
Siyang Yao ◽  
Huangpu Han ◽  
Shangen Jiang ◽  
Bingxi Xiang ◽  
Guangyue Chai ◽  
...  
Keyword(s):  
Thin Films ◽  
Quality Factor ◽  
Free Spectral Range ◽  
Single Mode ◽  
Lithium Tantalate ◽  
Optical Modulation ◽  
Microring Resonators ◽  
Transmission Losses ◽  
Practical Applications ◽  
Integrated Devices

In this paper we design, simulate, and analyze single-mode microring resonators in thin films of z-cut lithium tantalate. They operate at wavelengths that are approximately equal to 1.55 μm. The single-mode conditions and transmission losses of lithium tantalate waveguides are simulated for different geometric parameters and silica thicknesses. An analysis is presented on the quality factor and free spectral range of the microring resonators in lithium tantalate at contrasting radii and gap sizes. The electro-optical modulation performance is analyzed for microring resonators with a radius of 20 μm. Since they have important practical applications, the filtering characteristics of the microring resonators that contain two straight waveguides are analyzed. This work enhances the knowledge of lithium tantalate microring structures and offers guidance on the salient parameters for the fabrication of highly efficient multifunctional photonic integrated devices, such as tunable filters and modulators.

DESIGN AND CHARACTERIZATION OF MULTIPLE COUPLED MICRORING BASED WAVELENGTH DEMULTIPLEXER IN SILICON–ON–INSULATOR (SOI)

2012 ◽  
Vol 21 (01) ◽  
pp. 1250004 ◽  
Author(s):  
HAZURA HAROON ◽  
SAHBUDIN SHAARI ◽  
P. S. MENON ◽  
B. MARDIANA ◽  
A. R. HANIM ◽  
...  
Keyword(s):  
Free Spectral Range ◽  
Single Mode ◽  
Silicon On Insulator ◽  
Optimized Design ◽  
Third Order ◽  
Wavelength Division ◽  
Wavelength Demultiplexer ◽  
Planar Lightwave ◽  
Difference Time

We report in this paper, an optimized design and characterization of SOI based single mode, four channels wavelength demultiplexer using microrings. The usage of silicon-on-insulator (SOI) allows a wide free spectral range (FSR) for the device that is crucial in developing ultra-compact integrations of planar lightwave circuits (PLCs). The characterizations are done using Finite-Difference Time-Domain (FDTD) mode simulations from RSOFT. Serially cascaded microring arrays up to the third order are presented to study the design trade-off among the FSR, Q-factor and optical losses of the laterally coupled wavelength demultiplexer. The demultiplexer is expected to be working at C-band region of Wavelength Division Multilplexing (WDM) for a wavelength around 1550 nm. Our proposed demultiplexer has low insertion loss (< 0.5 dB) and a crosstalk around 12 ~ 19 dB.

2x2 Optical Switch Based on Silicon-on-Insulator Microring Resonator

2011 ◽  
Vol 378-379 ◽  
pp. 531-534
Author(s):  
B. Mardiana ◽  
Hanim Abdul Razak ◽  
H. Hazura ◽  
S. Shaari ◽  
P. Susthitha Menon ◽  
...  
Keyword(s):  
Optical Switch ◽  
Free Spectral Range ◽  
Fdtd Method ◽  
Single Mode ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Electric Signal ◽  
Compact Size ◽  
Near Future ◽  
Difference Time

In near future, silicon-on-insulator (SOI) microring resonator are expected to be basic components for wavelength filtering and switching due to their compact size and wide free spectral range (FSR). In this paper, a 2X2 optical switch by using active microring resonator is proposed. The switch is consists of second order serially cascaded microring coupled to a pair of waveguide. The ON/OFF state of the design is control by electric signal which will vary the refractive index. The device is design to operate at 1.55µm wavelength. With a 500nm x 200nm rib dimensions, the design is proven to have single mode behaviour. Finite-Difference Time-Domain (FDTD) method simulation by RSOFT software is use to characterize the device performance. The results show that the 2X2 optical switch proposed can be an efficient device to be functioning in WDM application.

Performance of Optical Wavelength Demultiplexer Based on Silicon-on-Insulator (SOI) Microring Resonators (MRRs)

2011 ◽  
Vol 378-379 ◽  
pp. 549-552
Author(s):  
H. Hazura ◽  
A.R. Hanim ◽  
B. Mardiana ◽  
S. Shaari ◽  
B.Y. Majlis ◽  
...  
Keyword(s):  
Time Domain ◽  
Finite Difference Time Domain ◽  
Free Spectral Range ◽  
Silicon On Insulator ◽  
Microring Resonators ◽  
Third Order ◽  
Optical Wavelength ◽  
Wavelength Demultiplexer ◽  
The Third ◽  
Difference Time

In this paper, we presented the performance analysis of Silicon- on- Insulator (SOI) based, four channels optical wavelength demultiplexer using microrings. The characterizations are done employing Finite- Difference Time- Domain (FDTD) mode simulations from RSOFT. Serially cascaded microring arrays up to the third order are demonstrated to discuss the design issues of the laterally coupled wavelength demultiplexer. Characteristics like the Free Spectral Range (FSR), crosstalk and insertion loss losses are studied.

scholarly journals Design and Optimization of Proton Exchanged Integrated Electro-Optic Modulators in X-Cut Lithium Niobate Thin Film

Crystals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 549 ◽  
Author(s):  
Huangpu Han ◽  
Bingxi Xiang ◽  
Tao Lin ◽  
Guangyue Chai ◽  
Shuangchen Ruan
Keyword(s):  
Thin Film ◽  
Lithium Niobate ◽  
Power Distribution ◽  
Optical Power ◽  
Single Mode ◽  
Design Parameters ◽  
Design And Optimization ◽  
Half Wave Voltage ◽  
Half Wave ◽  
Electro Optic

In this study, we designed, simulated, and optimized proton exchanged integrated Mach-Zehnder modulators in a 0.5-μm-thick x-cut lithium niobate thin film. The single-mode conditions, the mode distributions, and the optical power distribution of the lithium niobate channel waveguides are discussed and compared in this study. The design parameters of the Y-branch and the separation distances between the electrodes were optimized. The relationship between the half-wave voltage length production of the electro-optic modulators and the thickness of the proton exchanged region was studied.

The Engagement of Hybrid Ultra High Space Division Multiplexing with Maximum Time Division Multiplexing Techniques for High-Speed Single-Mode Fiber Cable Systems

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
I. S. Amiri ◽  
P. G. Kuppusamy ◽  
Ahmed Nabih Zaki Rashed ◽  
P. Jayarajan ◽  
M. R. Thiyagupriyadharsan ◽  
...  
Keyword(s):  
Communication Systems ◽  
High Speed ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Design Parameters ◽  
Control Parameters ◽  
Data Rates ◽  
Fiber Optic Communication ◽  
High Space ◽  
Optic Communication

AbstractHigh-speed single-mode fiber-optic communication systems have been presented based on various hybrid multiplexing schemes. Refractive index step and silica-doped germanium percentage parameters are also preserved during their technological boundaries of attention. It is noticed that the connect design parameters suffer more nonlinearity with the number of connects. Two different propagation techniques have been used to investigate the transmitted data rates as a criterion to enhance system performance. The first technique is soliton propagation, where the control parameters lead to equilibrium between the pulse spreading due to dispersion and the pulse shrinking because of nonlinearity. The second technique is the MTDM technique where the parameters are adjusted to lead to minimum dispersion. Two cases are investigated: no dispersion cancellation and dispersion cancellation. The investigations are conducted over an enormous range of the set of control parameters. Thermal effects are considered through three basic quantities, namely the transmission data rates, the dispersion characteristics, and the spectral losses.

Third-order optical nonlinearity of niobium-rich lithium niobate thin films

2021 ◽  
Vol 114 ◽  
pp. 110914
Author(s):  
Luying Yin ◽  
Jie Jiang ◽  
Yanyan Huo ◽  
Shuyun Wang ◽  
Tingyin Ning
Keyword(s):  
Thin Films ◽  
Lithium Niobate ◽  
Optical Nonlinearity ◽  
Third Order

scholarly journals The thin film bulk acoustic wave resonator based on single-crystalline 43○Y-cut lithium niobate thin films

AIP Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 075002
Author(s):  
Xiaoyuan Bai ◽  
Yao Shuai ◽  
Lu Lv ◽  
Ying Xing ◽  
Jiaoling Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Lithium Niobate ◽  
Acoustic Wave ◽  
Bulk Acoustic Wave ◽  
Single Crystalline ◽  
Bulk Acoustic Wave Resonator ◽  
Wave Resonator ◽  
Film Bulk

Combinatorial Chemical Beam Epitaxy of Lithium Niobate Thin Films on Sapphire

2011 ◽  
Vol 158 (2) ◽  
pp. D72 ◽  
Author(s):  
Ali Dabirian ◽  
Scott Harada ◽  
Yury Kuzminykh ◽  
Silviu Cosmin Sandu ◽  
Estelle Wagner ◽  
...  
Keyword(s):  
Thin Films ◽  
Lithium Niobate ◽  
Chemical Beam Epitaxy
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