A Review of Silicon‐Based Integrated Optical Switches
Xiaojun Chen,Jiao Lin,Ke Wang +2 more
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TLDR
In this paper , the authors classified silicon-integrated optical switches with and without phase change materials (PCMs) and discussed the pros and cons of different types of integrated optical switches.Abstract:
Recently, silicon‐integrated optical circuits have attracted intensive interests, thanks to the compatibility with the complementary metal‐oxide‐semiconductor (CMOS) technology that enables mass production at low cost. The optical switch is an essential part of optical integrated circuits, with broad applications in optical communications and networks, optical computing, and sensing such as LiDAR. In general, the silicon‐integrated optical switch adopts thermo‐optic or carrier dispersion effect to realize reconfigurable signal routing. However, the use of thermo‐optic effect leads to high power consumption, and the carrier dispersion effect has the disadvantage of small refractive index change. In addition, both effects are non‐latching, and hence, continuous power consumption is required even when switching is not needed. For overcoming these drawbacks, phase‐change materials (PCMs) have been introduced into silicon‐integrated optical switches. In this paper, silicon‐integrated optical switches are classified according to the underlying structure and recent research is reviewed. Recent studies on silicon‐integrated optical switches incorporating PCMs are also reviewed. Furthermore, the pros and cons of different types of integrated optical switches with and without PCMs are compared and discussed.read more
Citations
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Matrix analysis for back reflection and mode conversion in silicon waveguide bend structure
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Optically Transparent and Thermally Efficient 2D MoS2 Heaters Integrated with Silicon Microring Resonators
Dor Oz,N. A. Suleymanov,Boris Minkovich,Vladislav Kostianovskii,Liron Gantz,Dmitry K. Polyushkin,Thomas Mueller,Ilya Goykhman +7 more
TL;DR: In this paper , a single-layer MoS2 heater with negligible optical absorption in the infrared can be placed in close proximity (only 30nm) to the waveguide and show the best-reported heating efficiency of 15 mW per FSR without sacrificing the optical insertion loss.
Sputter-deposited PZT-on-Silicon Optimization for C-band Electro-Optic Modulation
Suraj,Shankar Kumar Selvaraja +1 more
TL;DR: In this article , the authors demonstrate sputterdeposited PZT on silicon-on-insulator wafers, achieving the desired phase and film morphology through process and buffer layer engineering.
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A Controller for Si MZI-Based Spanke-Benes Optical Switch Fabric With Automatic Calibration Capability
TL;DR: In this article , an FPGA-based controller for Si MZI-based Spanke-Benes 4 × 4 optical switch fabric is presented, which can automatically calibrate each individual switching cell and select the desired routing configuration.
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Advances in Silicon-Based Integrated Lidar
Ming-Jhe Hu,Yajun Pang,Long Gao +2 more
TL;DR: In this paper , the authors mainly describe the research progress of silicon-based integrated Lidar, including siliconbased optical phased array LIDAR, silicon based optical switch array LidAR, and continuous frequency-modulated wave Lidars.
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