硅光子学

硅光子学有六个主要研究领域,包括产生光、在硅中选择地引导和传输光、编码光、探测光、包装器件和智能地控制这一切光子功能。综述了以上各领域的研究进展。     

Silicon Nanocrystals as an Enabling Material for Silicon Photonics

Silicon nanocrystals (Si-nc) is an enabling material for silicon photonics, which is no longer an emerging field of research but an available technology with the first commercial products available on the market. In this paper, properties and applications of Si-nc in silicon photonics are reviewed. After a brief history of silicon photonics, the limitations of silicon as a light emitter are discussed and the strategies to overcome them are briefly treated, with particular attention to the recent achievements. Emphasis is given to the visible optical gain properties of Si-nc and to its sensitization effect on Er ions to achieve infrared light amplification. The state of the art of Si-nc applied in a few photonic components is reviewed and discussed. The possibility to exploit Si-nc for solar cells is also presented. In addition, nonlinear optical effects, which enable fast all-optical switches, are described.     

A special issue on Silicon Photonics

The tremendous demand on low cost optoelectronic systems that may be used for high-density data communications,real time sensing/detection and high-speed control/actuation has heated up the research and development in silicon photonics,which studies the principles and technologies of merging electronics and photonics into the silicon platform.To make a silicon photonic system reality,the compatibility in device size and integration processing between the photonics and electronics is essential.Over the past years,unprecedented advancement on individual silicon photonic devices,such as waveguide,beam splitter,light source,modulator,and detector,have been reported,yet the progress in size and processing issues are still under development.     

Silicon Photonics: CMOS Going Optical

For almost 50 years, silicon microelectronics has been the engine of the modern information revolution. Complex microprocessors, dense memory circuits, and other digital and analog electronics produced by the $100 billion silicon industry mainly serve a single goal - to process more and more data faster and faster using smaller and smaller components. In this everlasting quest, the silicon industry has successfully overcome many critical issues that were initially considered to be impassible road blocks. Recent progress in silicon compatible photonics is driving high density integration of photonic and electronic components manufactured by CMOS-based technology on the same platform.This Special Issue presents a set of review papers addressing major challenges and summarizing recent progress in the several subfields of Si-based photonics.     

Fabrication of Silicon Nanostructures for Application in Photonics

Semiconductors - Silicon is the primary material of modern electronics. It also possesses bright potentials for applications in nanophotonics. At the same time optical properties of bulk silicon do...     

硅光子中波分复用技术研究

介绍了硅光子互连中4种波分复用器及相关单片集成发射接收芯片,其中硅纳米线阵列波导光栅及刻蚀衍射光栅波分复用器单个芯片就可以成倍扩展通道数,非常适合大通道数密集波分复用,马赫-曾德尔结构及微环谐振型波分复用器芯片通道数增大时需要多个单元级联,波长准确性及间隔不易控制,比较适合通道数少的芯片应用。同时,给出了自主设计和制备的硅纳米线阵列波导光栅和刻蚀衍射光栅,通过采用阵列波导展宽方法,有效抑制了阵列波导的串扰,实现串扰小于-15 d B;通过在刻蚀衍射光栅反射面引入二维光子晶体反射镜,降低了刻蚀衍射光栅的反射损耗,损耗比普通刻蚀衍射光栅减小了3 d B。     

A Two-Wafer Approach for Integration of Optical MEMS and Photonics on Silicon Substrate

This letter reports a novel two-wafer approach which demonstrates an integration of optical microelectromechanical system (MEMS) devices and photonics on a silicon substrate. The great advantage of this novel wafer bonding scheme is the ability to maintain the optical axis of the optical MEMS device at the same axis as the optical components. The bonded two wafers which are partially processed, which allows for further processing on the wafer after bonding. Thus, the critical alignment issue is resolved for devices requiring precise alignment in x-/y-/z-axis. Individual functionalities of optical MEMS device and optical coupling between silicon waveguide, fibers and ball lens are demonstrated. This technology shows the potential for integrating silicon photonics integrated circuit and MEMS components with reconfiguration functions on a single silicon substrate.      

半导体光子学

半导体光子学是基于在半导体内操纵和控制光子运动的一门新的科学与技术。它应用于信息的传输、开关、记忆、再生和处理等。吸引着众多科学家、工程师们的巨大兴趣。现代信息高科技要求光子学技术能够传输ＴＧｂ／ｓ超大信息流，并能实现实时与高速处理，因此光子学未来的发展要求集成化，按照系统功能设计的要求，将众多具有不同功能的光子器件通过光波导的互连集成在一个基片上，并具有分立器件所不及的更优化的功能，这便是当今正迅速发展着的半导体光子集成回路（ＰＩＣ）。虽然光子技术能够实现某些重要特殊功能，但是一个有实用意义的集成系统没有电子器件的参与是不现实的。因此，未来的集成必将是光子集成（ＰＩＣ）与微电子集成的融合，这便是光子、电子集成回路。     

Microwave Photonics

Broadband and low loss capability of photonics has led to an ever-increasing interest in its use for the generation, processing, control and distribution of microwave and millimeter-wave signals for applications such as broadband wireless access networks, sensor networks, radar, satellite communitarians, instrumentation and warfare systems. In this tutorial, techniques developed in the last few years in microwave photonics are reviewed with an emphasis on the systems architectures for photonic generation and processing of microwave signals, photonic true-time delay beamforming, radio-over-fiber systems, and photonic analog-to-digital conversion. Challenges in system implementation for practical applications and new areas of research in microwave photonics are also discussed.      

信息光子学

评述了光子学在光学纤维、半导体激光器、光纤放大器、纤维光学无源元件、纤维光学检测设备、光纤孤子通讯和量子通讯中的应用。     

RF Photonics

In parallel with the development of fiber optics for transmission of digital information, the 1970s and 1980s saw the development of techniques for the transmission of wide-bandwidth analog radio-frequency (RF) signals over optical fibers. The simultaneous need for high linearity and high signal-to-noise in RF photonic links spurred the development of lasers, modulators and detectors matched to the special needs of such links. RF photonics was also explored for the processing of RF signals by means of optically implemented filters and variable-delay lines. Commercial applications of RF photonics included cable television signal distribution and subcarrier-multiplexed digital signals.     

Microwave Photonics

The low-loss wide bandwidth capability of opto-electronic systems makes them attractive for the transmission and processing of microwave signals, while the development of high-capacity optical communication systems has required the use of microwave techniques in optical transmitters and receivers. These two strands have led to the development of the research area of microwave photonics. This paper reviews the development status of microwave photonic devices, describes their systems applications, and suggests some likely areas for future development     

光子技术展望

1　引　　言　　光子技术是 2 1世纪光学技术的重要组成部分。本文展望了与激光技术相关的光子技术的发展前景。 2 0世纪 6 0年代出现了被称之为激光的相干光源。从量子电子学或量子力学的原理上讲似乎难以解释 ,但激光本身如同其名称一样是光线。与自然光和其他人工光源相比 ,激光的使用更方便 ,且便于控制。激光所产生的相干光是我们在这个地球上前所未见的 ,而由此产生的非线性光子现象使我们进入了可以像电光效应、声光效应、光参量效应那样 ,像控制电一样控制光的时代。光子技术必将在 2 1世纪得到迅速发展。具有悠久历史的光学技术与…