搜索结果: 91-105 共查到“知识库 光学元件加工”相关记录181条 . 查询时间(5.902 秒)
Propagation of whispering gallery modes along the miniature optical fiber coils
Fiber optics components Fiber optics sensors Waveguides Optical processing devices
2015/6/9
Propagation of the whispering gallery modes along a micro-deformed miniature optical fiber coil (MOFC) is investigated. The results are applied to explain the performance of a preliminary-fabricated M...
100Gbps EO Polymer Modulator Product and Its Characterization using a Real-Time Digitizer
Modulators Fiber-Optics Components
2015/6/9
First commercial 100Gbps EO polymer modulator and its use in time-stretch A/D converter to monitor the high frequency performance of the modulator and achieving 100GHz A/D conversion is shown.
曝光光学系统“大口径衍射光学元件的研制”研制成功大口径脉宽压缩光栅掩膜，在介质反射光栅制作技术、测试和工艺达到国际先进水平，填补了我国在该领域的空白。
Monolithically Integrated InP Wafer-Scale 100-Channel × × 10-GHz AWG and Michelson Interferometers for 1-THz- Bandwidth Optical Arbitrary Waveform Generation
Integrated optics devices Semiconductors
2015/6/8
We discuss monolithic integration of a 100-channel AWG with a 10-GHz channel spacing with 100 Michelson-interferometer-based phase- and amplitude-modulators. The AWG showed approximately 10 dB crossta...
All-optical label processing in optical packet switched networks
Switching packet Optical processing Wavelength filtering devices
2015/6/8
We present a data-format transparent all-optical label processing system suitable for photonic integration that requires N active device to process 2 N addresses. We demonstrate error-free all-optical...
Nanophotonic Devices by Dressed Photon Exchange
Quantum-wel dot devices Optical logic devices
2015/6/5
Nanophotonics is defined, and a physical picture of dressed photons is presented.Room-temperature nanophotonic logic gates and related devices are demonstrated. An application for an optical router sy...
High density thermoplastic ferrule for optical interconnection
Fiber optics components Optical interconnects
2015/6/5
48-fiber thermoplastic MT ferrule is developed. The fiber hole position error is below 2.5 μm and the insertion loss is below 0.5 dB. The ferrule is cost effective compared with conventional thermoset...
Cost-Effective 10.7 Gbit/s Cooled TOSA Employing Rectangular TO-CAN Package Operating up to 90°C
Electro-optical devices Semiconductor lasers
2015/6/4
Employing rectangular TO-CAN and optimizing coupling mode of transmission line realize both TEC power consumption of 0.6W at 90 °C and superior optical output waveform with mask margin of 24% at 10.7...
Optical Memory Elements with Extremely Wide Hysteresis Window (94mA) Using Partly Saturable-Absorber Novel Active MMI Bi-Stable Laser Diodes
Opto-electronics Optical switching devices
2015/6/4
Novel active MMI bi-stable laser diodes are proposed and demonstrated. Using partly saturable-absorber configuration in active MMI, extremely wide hysteresis window of 94mA was achieved with 30fJ opti...
Reference MPO Connectors with Pre-Angled MT ferrules and measurements of fiber core position
Fiber optics components Fibers single-mode
2015/6/4
This paper describes the single mode 12-fiber reference MPO connector with insertion loss of no more than 0.15dB and core eccentricity of no more than 0.45μm.
High power damage threshold test and thermal simulation for plug-style optical attenuator were carried out. The degradation mode and its mechanism were clarified. The limit in high power level for ass...
离子束作用下的光学表面粗糙度演变研究
离子束抛光 光学表面粗糙度 倾斜入射抛光 牺牲层抛光技术
2011/4/19
为了获得超光滑光学表面，介绍了离子束作用下改善表面粗糙度的抛光方法，并通过相关的实验进行了验证。光学材料是典型的硬脆材料，在加工过程中的表面粗糙度要经历复杂的演变过程。离子束加工作为光学镜面加工中的最后一道工序，如果在修正面形的同时，能够有效地改善表面粗糙度，那么离子束加工的性能就可以得到更好的延伸。分析了离子束作用下的粗糙度演变机理，在此基础上提出了倾斜入射抛光和牺牲层抛光技术2种改善表面粗糙度...
关于光学元件面形评价参数峰谷值(PV)的分析
面形评价 PV20 PVr PVq
2011/4/19
光学元件的表面面形或波前质量一般采用数字指标峰谷值PV(表面最高点和最低点之差)来评价。而两点PV在高分辨率干涉仪的测量结果中具有很大不确定性。为了更准确地评价光学元件的表面面形或波前质量，讨论了针对两点PV进行改进后的评价方式PV20，PVr，PVq。通过模拟实验证明其可以描述真实波面，并在实验中证明其可以消除灰尘等杂点对测量结果带来的干扰，以及这几种评价方式对CCD分辩率的变化不敏感，并发现上...
激光珩磨专用机床的运动控制研究
激光珩磨 摩擦副 运动控制系统 运动控制卡
2011/4/19
以发动机气缸/活塞环摩擦副为具体研究对象，研制了一种新型激光珩磨设备。由于发动机汽缸套载重大，且形状不规则，故设备采用激光头既旋转又直线运动的运动方案。该设备在移动轴和转轴中分别安装有高精度光栅尺和高精度增量旋转编码器以提高运动控制系统的精度。为了使微凹腔沿圆周均匀分布，采用了小数分频原理，能够实现任意小数分频。通过对运动控制卡与自制的调Q控制卡的软件编程，实现了运动控制系统与激光系统的协同控制，...