中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共4条，第1-4条

帮助

条数/页：排序方式：
	Branch unit for seafloor observatory network 会议论文 OAI收割 3rd International Conference on Materials Science and Information Technology, MSIT 2013, Nanjing, Jiangsu, China, September 14-15, 2013 作者: Feng YB(冯迎宾); Li ZG(李智刚); Wang XH(王晓辉) 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/12/26 Dense wavelength division multiplexing Design Equipment Materials science Observatories Zener diodes
	Novel Mach-Zehnder interferometer structure for tunable optical interleaver 期刊论文 OAI收割 opt. eng., 2006, 卷号: 45, 期号: 4, 页码: 45003 Zhang J; Liu L 收藏 \| 浏览/下载：1090/180 \| 提交时间：2009/09/18 optical interleaver dense wavelength division multiplexing (DWDM) Mach-Zehnder interferometer center-frequency tunability
	Holographic polymer Bragg gratings for dense wavelength division multiplexing at 1550nm (EI CONFERENCE) 会议论文 OAI收割 Holography, Diffractive Optics, and Applications II, November 8, 2004 - November 11, 2004, Beijing, China 作者: Wang W.; Wang W. 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/03/25 Bragg grating has lots of use in many optical field. Especially in dense wavelength division multiplexing system and optical filters and so on. Holographic Bragg grating with 1800 line/mm is fabricated in this experiment. Performances of holographic Bragg gratings are measured in our lab. Results show that this holographic Bragg grating can resolve 0.26nm fine line spectrum. Diffraction efficiency of Bragg grating can get 76% in 1.55m wavelength. Results also show that this kind of holographic Bragg grating may use in DWDM device and can produce fine narrow width spectra.
	Packaging technology of polymer/Si arrayed waveguide grating and their environmental stability (EI CONFERENCE) 会议论文 OAI收割 2005 6th International Conference on Electronics Packaging Technology, August 30, 2005 - September 2, 2005, Dameisha, Shenzhen, China 作者: Zhang Y.; Zhang X.; Zhang X.; Zhang X.; Wang F. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 Future optical communication systems will use more of the exceptional high bandwidth of optical fiber. Wavelength division multiplexing (WDM) systems are well suited to transport terabits of information via the fiber[1]. Multiplexers/ demultiplexers (MUX/DEMUX) are essential components for dense WDM systems. Several different kinds of multiplexer types have been developed in the past: (a) interference filters (b) fiber gratings and (c) planar lightwave circuit (PLC) MUX/DEMUXers[2 3]. The planar fabrication process of the last mentioned PLCs allows the realization of high performance filters with a large number of wavelength channels. Further an integration with other optical elements seems to be possible. Arrayed waveguide gratings (AWG) are a special kind of PLC-MUX/DEMUXers which are very attractive components for WDM systems because of their great flexibility in filter design[4 5]. Basically an AWG is an optical spectrograph built in planar waveguide technique. Typically AWGs works in a high grating order (50-250). For AWG multiplexer applications in communications systems a precise wavelength controllability and wavelength stability with long term is demanded. Recently a polymeric (especially fluorinated polymer with low optical absorption loss in the infrared region) AWG has attracted much attention because of its easy fabrication low cost possibility and a potential of integration with other polymer devices[6]. Standard AWGs however show a change of center wavelength with temperature. A method to prevent this temperature drift is to package the AWG together with a temperature controller in order to tune and fix the desired filter-wavelength. In this paper a 32-channel AWG was fabricated using a cross-linkable fluorinated poly (ether ether ketone) (FPEEK) its package technology and environmental stability were also discussed. 2005 IEEE.