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	A 400-Gb/s 64-QAM Optical Receiver with Monolithically Integrated TIA and Balanced-PD in 45-nm SOI CMOS 会议论文 OAI收割 Hefei, China, 2023-10-27 作者: Xiong, Yongliang; Yang, Yihao; Ma, Qianli; Ren, Yangming; Li, Leliang \| 收藏 \| 浏览/下载：23/0 \| 提交时间：2024/03/01 Differential transimpedance amplifier optical coherent receiver monolithic integration quadrature amplitude modulation
	Inductorless SiGe BiCMOS optical receiver frond end for 25 Gb/s optical links 会议论文 OAI收割成都, October 21-22, 2016 作者: Jingqiu Wang \| 收藏 \| 浏览/下载：35/0 \| 提交时间：2017/09/30 Sige Bicmos Optical Receiver Inductorless Zero-pole Canceling Negative Miller Capacitance
	Communication synchronization in wireless optical link (EI CONFERENCE) 会议论文 OAI收割 2012 International Conference on Control Engineering and Communication Technology, ICCECT 2012, December 7, 2012 - December 9, 2012, Shenyang, Liaoning, China 作者: Guo J.; Guo J.; Wang H.; Wang H.; Wang H. 收藏 \| 浏览/下载：36/0 \| 提交时间：2013/03/25 An FPGA based transceiving synchronization method is demonstrated for Free Space Optical (FSO) communication system which is discussed separately as the transmitting protocol and the receiving protocol. During the discussion of these two parts the co-operation of them is also discussed. The transmitting protocol interfaces the outer input data with a parallel port buffers the input data encodes the input data stream serializes the parallel data and outputs the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The receiving protocol filters and synchronizes the input serial data stream parallels the serial data stream decodes the input data checks received error handles transmission exception and interfaces the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces meaning that when interfacing the presented system to an outer system users don't have to consider what protocol the outer system transceiving data stream is under for example the TCP/IP protocol or anything else in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is a working solution at a certain bit rate scale. 2012 IEEE.
	Design of the real-time autofocusing system for collimator with long focus length and large aperture (EI CONFERENCE) 会议论文 OAI收割 2011 International Academic Conference on Numbers, Intelligence, Manufacturing Technology and Machinery Automation, MAMT 2011, December 24, 2011 - December 25, 2011, Wuhan, China 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：46/0 \| 提交时间：2013/03/25 Large aperture collimator which has been widely used for calibrating and testing various optical devices plays an essential role in correlative laboratories. As being the basic testing and calibration equipment the large aperture collimator's accuracy should be much higher than the device under testing in order to ensure the accuracy of the measurement. However the process of adjusting the collimator is extremely complicated due to the collimator's large aperture and long focal length. So it is difficult to ensure the measurement's quality and easy to cause the system being vulnerable to the surrounding environment. One of the most common problems is defocus. In order to solve the problem above this issue presents a new type of autocollimator autofocusing system which uses pentaprism instead of using large-aperture plane mirror semiconductor lasers as light source and CCD sensor as receiver. The system is smaller lighter and more convenient when using. The computer simulation shows that the autofocusing system's resolution could reach the accuracy of 40m. If we use the relevant algorithms to execute the sub-pixel scanning the resolution could reach the accuracy of 10m. It shows that the system could satisfy the required testing precision of testing large aperture optical device.
	A study on atmospheric turbulence effects in full-optical free-space communication systems (EI CONFERENCE) 会议论文 OAI收割 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010, September 23, 2010 - September 25, 2010, Chengdu, China 作者: Liu P. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 Next generation free-space optical communication systems have used fiber-optic technology as the seamless connection between free-space and optical fiber. The full-optical free-space optical communication systems use optical fiber as the receiver to get faster communication speed. The atmospheric turbulence deeply influenced on the optical wave propagated in terrestrial application. As the active receiving area of the full-optical free-space optical communication systems is very small it is important to research on the atmospheric turbulence effects on the full-optical free-space optical communication system. In this paper we discuss about both the turbulence-induced intensity fluctuations and the angle-of-arrival effects in full-optical free-space optical communication systems which are used in a few kilometers communication. We gave the numerical results of the atmosphere turbulence effects on the free-space optical communication systems. In order to minimize the atmospheric turbulence influence on the full-optical free-space optical communications system we also investigate the use of fine tracking system in the communication system. We have set up a full-optical free-space communication system in Tokyo and received useful data from the experiment. We compared the receiving power of the experiment when the fine tracking system is On and Off. From the experiment results we can see that the fine tracking system effectively mitigates the atmospheric turbulence and increases the receiving power of the communication system. 2010 IEEE.
	Low Noise Receivers at 1.6 THz and 2.5 THz Based on Niobium Nitride Hot Electron Bolometer Mixers 期刊论文 OAI收割 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2009, 卷号: 19, 期号: 3, 页码: 278-281 作者: Chen, J.; Liang, M.; Kang, L.; Jin, B. B.; Xu, W. W. 收藏 \| 浏览/下载：47/0 \| 提交时间：2011/12/08 Hot electron bolometer (HEB) mixer quasi-optical superconducting heterodyne detector receiver noise temperature terahertz (THz)
	Transceiving protocol designc for a free space optical communication system (EI CONFERENCE) 会议论文 OAI收割 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, November 16, 2008 - November 19, 2008, Beijing, China Hualong W.; Wanxin S.; Zhongbao X. 收藏 \| 浏览/下载：63/0 \| 提交时间：2013/03/25 A new transceiving protocol is demonstrated for a Free Space Optical (FSO) communication system and it's discussed in two parts: the transmitting protocol and the receiving protocol. During the discussion of these two parts the cooperation of them is also discussed. Different from wired communication an FSO system modulates the data on a narrow beam of laser transmitting through the free space or the atmosphere and the protocol presented in this paper is mainly optimized for terrestrial Free Space Optical links in which the signal channel of the system is mainly the atmosphere. Due to the complex composition and activity of the atmosphere this signal channel brings in great influence on the transmitting laser in it for example the absorption and scattering of the atmosphere molecules and aerosols the scintillation of received laser power caused by the turbulence of the atmosphere all of which results in a much higher Bit Error Rate (BER) of the communication system. Thus in designing a protocol for an FSO system more effort should be taken in the encoding of the data stream the synchronization of the data stream error checking and exception handling. The main function of the transmitting protocol includes interfacing the outer input data with a parallel port buffering the input data encoding the input data stream serializing the parallel data and output the serialized data. It also has an output management unit to manage the activity of each part of the transmitting protocol. The main function of the receiving protocol includes filtering and synchronizing the input serial data stream paralleling the serial data stream decoding the input data error checking exception handling and interfacing the outer receiver with a parallel port. The entire transceiving protocol could be programmed into a single FPGA chip to improve system integrity and reduce the system cost. The presented protocol could be taken as "protocol transparent" for outer interfaces meaning that when interfacing the presented system to an outer system you don't have to consider what protocol the outer system transceiving data stream is under for example the TCP/IP protocol or anything else in the case that its I/O interface is a parallel port. Simulation and final experiment prove that the protocol presented is working fine at a certain bit rate scale. 2009 SPIE.
	Improved optical heterodyne methods for measuring. frequency responses of photodetectors 期刊论文 OAI收割 ieee journal of quantum electronics, 2006, 卷号: 42, 期号: 3-4, 页码: 241-248 Zhu NH; Wen JM; San HS; Huang HP; Zhao LJ; Wang W 收藏 \| 浏览/下载：68/0 \| 提交时间：2010/04/11 frequency response optical heterodyne method photodetector tunable laser SELF-HOMODYNE TECHNIQUE BANDWIDTH MEASUREMENTS LINEWIDTH RECEIVER NOISE FIBER PHOTODIODE RESOLUTION LINESHAPE SYSTEM