Institutional Repository of Xi'an Institute of Optics and Precision Mechanics, CAS
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Quad Small Form Factor Plus Pluggable Module for Medium Range Single Mode Fiber Applications
No full textAn apparatus is provided comprising a small form factor pluggable module having an optical connector configured to be coupled to a plurality of transmit and receive single mode optical fibers and an optical transmitter comprising a plurality of uncooled laser diodes configured to transmit optical signals to a plurality of transmit single mode optical fibers via the optical connector. The small form factor pluggable module is a quad small form factor pluggable plus (QSFP+) 40GBASE-SR4 module that has been converted for use with single mode fibers by substituting their vertical-cavity surface emitting laser diodes (VCSEL) with longer range uncooled laser diodes. Example replacement lasers may include uncooled Fabry-Perot (FP) laser diodes or Distributed Feedback (DFB) laser diodes. To connect the module to lower grade fibers, a single mode-to-multimode mode conditioning patch cord is provided with a plurality of inline physical offsets, one for each pair of fibers
半導體裝置的製造方法
No full text本发明提供一种可以减小表面电阻变化的激光退火方法。在由半导体材料构成的基板的深度比100nm浅的表层部添加杂质。对基板照射从激光二极管激励型全固体激光振荡器射出的激光束或其高次谐波束，使杂质活性化
Optical pick-up unit
No full textABSTRACT A pick-up unit, an optical drive comprising such a pick-up unit, and a method of generating error-signals are described. Light reflected from an information carrier is injected into one or more VCSELs. The spatial intensity distribution of the emission from the VCSEL(s) is used for the generation of error signals in an optical pick-up unit. Alternatively, the relative timing for the switching of individual lasers of an array of VCSELs is used for the detection of error signals. Fig.
一种铯CPT原子钟物理系统
No full text本发明公开了一种铯CPT原子钟物理系统，采用模块化设计，实现VCSEL激光器、光路部分和原子共振吸收系统集成封装；准直透镜由微透镜组构成，实现透镜组焦距可调，及VCSEL激光器与透镜组间距细微调整，可得到理想的准直光束；原子共振吸收腔实现光路部分和原子共振系统集成，其中MEMS气室支架实现MEMS气室与光电探测器的集成，对杂散磁场采用分层磁屏蔽设计，有效的抑制了外部杂散磁场对原子系统的干扰；结合铯原子饱和蒸汽压的特性进行局部加热、局部保温设计，提高了加热效率、降低了系统的功耗
利用旋转头人工校平旋转激光器
No full text一种独立激光发生器使用激光二极管和镜子以产生激光束，将其分成两部分，并且产生垂直的激光束。利用一个或者多个镜子接收光和将其分成两个光束。接着，一个内部马达使镜子转动并且其中一个光束成为旋转激光，所述旋转激光用于在水平或者垂直方向对目标物进行校准。其他光束可用于使旋转激光线发生器在不同的平面内定位和定向