搜索结果: 1-15 共查到“光学工程 On-line”相关记录46条 . 查询时间(0.037 秒)
中国科学院超导电子学卓越创新中心、上海微系统与信息技术研究所信息功能材料国家重点实验室研究员沈大伟与副研究员刘中灏课题组，与中国人民大学教授王善才、雷和畅、刘凯团队以及德国莱布尼茨固体物理材料研究所（IFW—Dresden）教授Sergey Borisenko研究小组成员进行合作，利用高分辨角分辨光电子能谱实验技术与第一性原理计算对高质量TiB2 单晶样品的低能电子结构进行了研究，首次证实了拓扑半...
Automatic break-line detection from laserscanner data using surface flatness
Spatial Information Sciences Automation Cultural Heritage Extraction
2015/8/25
Recently, a laser scanner has been receiving more attention as a useful tool for real-time 3D data acquisition, and various applications such as city modelling, DTM generation and 3D modelling of cult...
Opto-mechanical combination of a line scanning camera and a micro laserscanner system
Panoramic camera laser scanner optical path field lens
2015/8/25
Line scanning cameras are used in photogrammetric applications to record images with a very high resolution and a field of view up to 360° horizontally. In order to generate 3D information more than o...
基于逆压电效应的In-line Sagnac反射式光纤电压互感器
逆压电效应 Sagnac 干涉仪 双折射
2016/8/26
介绍了一种基于石英晶体逆压电效应的光纤电压互感器(FOVT)。传感头由两段分别缠绕在石英晶体上的等长保偏光纤构成,两段光纤之间90°熔接实现两正交偏振模式互补,采用非互易的法拉第旋光器实现In-line Sagnac 反射式干涉仪结构。阐述了其工作原理,借助琼斯矩阵得到其干涉表达式,并推导出检测相位与待测电压成线性关系,结合数字闭环模型计算出互感器变比,并以此为标准衡量互感器测量精度及稳定性。实验...
Modeling Coherent Backscattering Errors in Fiber Optic Gyroscopes for Sources of Arbitrary Line Width
Backscattering drift backscattering noise fi ber optic gyroscope laser phase noise
2015/8/7
We present a new model of the noise and drift induced by coherent backscattering in a fiber optic gyroscope (FOG) interrogated with a light source of arbitrary temporal coherence. This study is ...
RANDOM FORESTS BASED MULTIPLE CLASSIFIER SYSTEM FOR POWER-LINE SCENE CLASSIFICATION
LIDAR Classification Corridor Mapping Random Forests Multiple Classifier System Power-line
2014/6/5
The increasing use of electrical energy has yielded more necessities of electric utilities including transmission lines and electric pylons which require a real-time risk monitoring to prevent massive...
The metallurgical states of rare earth-transition metal targets were found to be essential to produce high performance magneto-optical recording thin films.Our study indicates that in a vertical in-li...
Energy-efficient Flow Aggregation for IPTV Program Delivery in Optical Backbone Networks with Multiple Line Rates
Networks multicast network optimization
2015/5/26
Considering energy efficiency for IPTV program delivery in optical backbone networks with multiple available line rates, we propose energy-efficient flow aggregation to guarantee that the total energy...
10-Gb/s - 80-km operation of full C-band InP MZ modulator with linear-accelerator-type tiny in-line centipede electrode structure directly driven by logic IC of 90-nm CMOS process
Waveguide modulators Traveling-wave devices
2015/5/21
InP MZ modulator of sub 1-V pp driving voltage with quasi-traveling-wave electrode structure and Logic IC of 90-nm CMOS process as its driver were developed. Their applicability was demonstrated throu...
80-Gbit/s DQPSK Optical Tapped-Delay-Line Equalization using Finely Tunable Delays, Phases and Amplitudes
Fiber optics links and subsystems Nonlinear wave mixing
2015/5/21
We experimentally demonstrate a tunable and reconfigurable optical tapped delay line using conversion dispersion based delays with optical multicasting and multiplexing. After equalization, at BER of ...
Line Coding for Downlink DML Modulation in λ λ-Shared, RSOA-based Asymmetric Bidirectional WDM PONs
Line Coding Downlink DML Modulation λ λ-Shared RSOA-based Asymmetric Bidirectional WDM PONs
2015/5/20
We experimentally investigate the use of various DC-balanced line codes for downlink modulation in single-fiber, wavelength-shared WDM-PON systems which employ 10-Gbps directly modulated lasers and 2....
Efficient Shared Subconnection Protection in Mixed-Line-Rate Optical WDM Networks
Efficient Shared Subconnection Protection Mixed-Line-Rate Optica WDM Networks
2015/5/20
Employing Mixed Line Rates (MLR) in optical WDM networks enables new paradigms for protection. We propose to design transparent MLR networks with shared subconnection protection and achieve significan...
All-Optical Self-Synchronizing Scheme for Contention Resolution in Asynchronous Optical Packet Switched Networks Using Continuously Tunable Optical Delay Line
Continuously Tunable Optical Delay Line All-Optical Self-Synchronizing Scheme Switched Networks
2015/5/15
Continuously tunable, optically-controlled variable delay line based on dynamic Brillouin grating is exploited for automated synchronization of switching signals in a network node, enabling asynchrono...
8b10b Line Coding of PSK Signals for Effective Homodyne Coherent Detection
Line Coding PSK Signals Homodyne Coherent Detection
2015/5/15
We demonstrate effective homodyne optical phase locking to a phase-shift-keying (PSK) signal with residual carrier by exploiting 8b10b coding. Low-penalty transmission over 215 km of installed dispers...
Highly Sensitive Optical Line Checker with a Leaking Component Embedded on an Optical Fiber Cord
Optical Fiber Cord Leaking Component Highly Sensitive
2015/5/15
We have developed a practical optical line checker to judge whether fiber line is live or dark without any transmission failure, achieving detectable optical signal lower limit of -40 dBm in a wide wa...