Models of waveguides combining gradient and nonlinear optical layers by S. E. Savotchenko

“…Theoretical studies of the waveguide properties of interfaces between nonlinear optical and graded-index media are important for application in optoelectronics. …”
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High-efficiency nonlinear frequency conversion enabled by optimizing the ferroelectric domain structure in x-cut LNOI ridge waveguide by Su Yawen, Zhang Xinyu, Chen Haiwei, Li Shifeng, Ma Jianan, Li Wei, Niu Yunfei, Qin Qi, Yang Shaoguang, Deng Yu, Zhang Yong, Hu Xiaopeng, Zhu Shining

“…In this work, we optimized the applied electric field distribution, and rectangular inverted domain structure was obtained in the ridge waveguide which is beneficial for efficient nonlinear frequency conversions. …”
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Highly Nonlinear Organic-Silicon Slot Waveguide for Ultrafast Multimode All-Optical Logic Operations by Yonghua Wang, Haofan Yang, Wenchan Dong, Lei Lei, Jing Xu, Xinliang Zhang, Ping Xu

“…Here, we propose a highly nonlinear multimode organic-silicon slot waveguide (HN-OSSW) whose nonlinearity is greatly improved by the intensive optical field confinement in the nano-gaps filled with highly nonlinear organic material. …”
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Ultra-large nonlinear parameters and all-optical modulation of a transition metal dichalcogenides on silicon waveguide by Tianyang Ding, Siqin Xu, Xianlong Sun

“…Abstract We integrate monolayer TMDCs into silicon-on-insulation (SOI) waveguides and dielectric-loaded surface plasmon polariton (DLSPP) waveguides to enhance nonlinear parameters ( $$\gamma$$ ) of silicon-based waveguides. …”
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Optical Phase Erasure and Wavelength Conversion Using Silicon Nonlinear Waveguide With Reverse Biased PIN Junctions by Guanyu Chen, Yu Yu, Xinliang Zhang

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Investigation of Hybrid Silicon-Nitride/Polymer Waveguides for Second-Harmonic Generation by Subrata Das, Brett R. Wenner, Jeffery W. Allen, Monica S. Allen, Michael Vasilyev

“…We explore and optimize two cases, single channel waveguide and slot waveguide, by varying the waveguide dimensions. …”
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Design of Partially Suspended Silicon Nitride Slot Waveguides for Efficient Forward Stimulated Brillouin Scattering by Kang Wang, Junqiang Sun, Ming Cheng

“…Based on the nonlinear coupled-mode equations, we compare the performance of Stokes amplification between the Si₃N₄ slot waveguides and the silicon nanowires. …”
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Exceptional points in a passive strip waveguide by Hasanli Shamkhal, Hasan Mehedi, Yoon Hyejin, Lee Seungyong, Kim Sangsik

“…These results demonstrate the realization of EPs in a widely applicable strip waveguide configuration, paving the way for advanced EP applications in nonlinear and ultrafast photonics, as well as advanced sensing technologies.…”
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Miniaturizable Phase-Sensitive Amplifier Based on Vector Dual-Pump Structure for Phase Regeneration of PDM Signal by Shuaiwei Jia, Zhuang Xie, Wen Shao, Xiaotian Han, Yulong Su, Jiacheng Meng, Duorui Gao, Wei Wang, Xiaoping Xie

“…We achieved a gain extinction ratio (GER) of ∼37.5 dB by using a 3-mm-long Si₇N₃ waveguide with a high nonlinear coefficient (∼279 /W/m). …”
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High-Precision and Low-Complexity Silicon Waveguide-Integrated Temperature Sensor System by Zhiming Zhang, Haole Kong, Yi Li

“…This paper proposes a high-sensitivity-integrated temperature sensor with low complexity based on a silicon waveguide. The waveguide layout is optimized through the finite-difference time-domain (FDTD) simulations, and a compressed taper structure improves the efficiency of speckle data collection while reducing the system complexity and cost. …”
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Tailoring the Structure of Multilayered Hybrid Silicon Vertical Waveguide to Achieve Anomalous Dispersion by Zengzhi Huang, Shuai Yuan, Yi Wang, Qingzhong Huang, Jinsong Xia

“…This multilayered waveguide has potential in on-chip nonlinear optical applications, such as in all-optical signal processing.…”
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Acoustic scattering and mode interaction in bifurcated circular waveguide structures with reacting liners and discontinuities. by Naif Alkuhayli, Aqsa Yaseen, Rab Nawaz, Hani Alahmadi

“…Acoustic scattering and nonlinear dispersion phenomena play a crucial role in the design and optimization of waveguide systems for noise control in engineering applications such as HVAC systems, aircraft engines, and industrial gas turbines. …”
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Waveguide-Assisted Magneto-Optical Effects in 1D Garnet/Co/Au Plasmonic Crystals by Tatiana Murzina, Andrey Dotsenko, Irina Kolmychek, Vladimir Novikov, Nikita Gusev, Ilya Fedotov, Sergei Gusev

“…Further perspectives regarding the optimization of this type of plasmonic crystal are discussed.…”
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Simultaneous Mid-Infrared Gas Sensing and Upconversion Based on Third Harmonic Generation in Cascaded Waveguides by Jianxing Pan, Zhenxing Chen, Tianye Huang, Shuwen Zeng, Zhuo Cheng, Pan Huang, Xiang Zhao, Perry Ping Shum, Gilberto Brambilla

“…In this paper, cascaded suspended waveguides are proposed and analyzed for mid-infrared gas sensing with enhanced detection limit. …”
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Crosstalk Suppressed High Efficient Mode-Selective Four-Wave Mixing Through Tailoring Waveguide Geometry by Jiabi Xiong, Yu Yu, Weili Yang, Chunlei Sun, Xinliang Zhang

“…A two-mode nonlinear circuit using asymmetric directional coupler based multiplexer/de-multiplexer and an optimized multimode waveguide is fabricated for demonstration, utilizing a silicon integrated platform. …”
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Effective electro-optical coefficient determination of low finesse periodically poled lithium niobate waveguide resonator by Nasrin Moeini, Rahman Nouroozi

“…The in situ characterization method developed in this work enables direct measurement of electro-optic coefficients in integrated photonic circuits, providing essential performance parameters for optimizing phase modulators, polarization converters, and nonlinear frequency mixing devices while maintaining device integrity.…”
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Air-Mode Photonic Crystal Micro-Ring Resonator With Enhanced Quality Factor for Refractive Index Sensing by Yameng Xu, Shubo Hu, Mei Kong

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All-optical memory based on surface plasmons and Kerr-type nonlinear cavity by Dariush Jafari, Mohammad Danaie

“…The proposed memory cell employs metal–insulator-metal (MIM) plasmonic waveguides integrated with Kerr-type nonlinear nanocavities to enable efficient all-optical switching. …”
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100-Gbps per-channel all-optical wavelength conversion without pre-amplifiers based on an integrated nanophotonic platform by Zhao Ping, He Zonglong, Shekhawat Vijay, Karlsson Magnus, Andrekson Peter A.

“…In this paper, we present the first optical translation of 32-GBaud 16QAM signals with an integrated Si3N4 nonlinear nanophotonic waveguide. An on-chip continuous-wave conversion efficiency of up to −0.6 dB from S band to C band is achieved in the dispersion-engineered low-loss Si3N4 nonlinear waveguide that is back-end compatible with complementary metal–oxide–semiconductor processes. …”
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Efficient Spectral Compression of Wavelength-Shifting Soliton and Its Application in Integratable All-Optical Quantization by Chao Mei, Jinhui Yuan, Feng Li, Binbin Yan, Xinzhu Sang, Qiang Wu, Xian Zhou, Kuiru Wang, Chongxiu Yu, Gerald Farrell

“…The geometric parameters of CSW are optimized to obtain the desired GVD and Kerr nonlinearity. …”
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