机构

• 半导体研究所 [3]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [3]
• iSwitch采集 [1]

内容类型

• 期刊论文 [3]
• 会议论文 [1]

发表日期

• 2011 [3]
• 2006 [1]

学科主题

• 光电子学 [2]

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 An electrical-filtered optical heterodyne technique for tuning speed measurement of dbr lasers 期刊论文  iSwitch采集 Chinese science bulletin, 2011, 卷号: 56, 期号: 7, 页码: 704-708 作者:  Man JiangWei;  Zhu NingHua;  Zhang HongGuang;  Sun Ke;  Ke JianHong 收藏  |  浏览/下载：30/0  |  提交时间：2019/05/12 Dbr laser  Electrical filter  Square-wave tuning  Tuning speed  Wavelength switching   Wavelength-Tunable Si-Based InGaAs Resonant Cavity Enhanced Photodetectors Using Sol-Gel Wafer Bonding Technology 期刊论文  OAI收割 ieee photonics technology letters, 2011, 卷号: 23, 期号: 13, 页码: 881-883 作者:  Cao Q 收藏  |  浏览/下载：69/5  |  提交时间：2011/07/05 Resonant cavity enhanced (RCE) photodetector  silicon photonics  sol-gel wafer bonding  thermal tuning  INTERFACIAL ENERGY  SILICON-WAFERS  HIGH-SPEED  TEMPERATURE  PHOTODIODES  MORPHOLOGY  POWER   An electrical-filtered optical heterodyne technique for tuning speed measurement of DBR lasers 期刊论文  OAI收割 chinese science bulletin, 2011, 卷号: 56, 期号: 7, 页码: 704-708 作者:  Man JW;  Ke JH 收藏  |  浏览/下载：74/3  |  提交时间：2011/07/05 DBR laser  electrical filter  square-wave tuning  tuning speed  wavelength switching  TUNABLE LASER  WAVELENGTH  TRANSMITTER  DFB   Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China Liang F.; Hu J. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution  which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS  several key techniques as follows are introduced. Firstly  the unique system configuration  four axes mutually intersecting at the center of the SS  is adopted  which ensures the shape of the focus be maintained circular during the writing period. Secondly  an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly  to guarantee the linear velocity to accord with the exposure character of the photoresist all the time  an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally  to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor  a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system  and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m  and the steep sides of the lines are parallel to each other.