搜索结果: 1-15 共查到“光学仪器及技术 Systems”相关记录58条 . 查询时间(0.146 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Equivariant techniques in Chromatic homotopy theory
色度 同伦理论 等变技术
2023/5/15
Chromatic homotopy theory uses the algebraic geometry of smooth 1-parameter formal groups to separate stable homotopy theory into periodic layers. The 1st layer recovers the image of Adams’ J homomorp...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：The spectral collocation method for the nonlocal problem with weak singularity
弱奇点 非局部问题 光谱搭配
2023/5/6
介绍求解一维弱奇异非局部扩散问题的谱配位法，建立了相应的Gauss-Jacobi 积分公式，并将其推广至高维非局部问题的谱配置点法，相关的理论与实验检验了算法的精度和渐进相容性。
Engineers working to miniaturize optical systems for modern electronics have seen great success when it comes to the most familiar components, the lenses and optical sensors. It’s been more challengin...
2018年SPIE红外成像系统会议（The SPIE Infrared Imaging Systems:Design,Analysis,Modeling,and Testing XXIX）
2018年 SPIE 红外成像系统 会议
2017/10/27
Sensor technologies are undergoing revolutionary advances. Increases in spatial, spectral, and temporal resolution, and in breadth of spectral coverage, render feasible sensors that function with unpr...
2017SPIE大气传播和自适应系统光学专题会议（Optics in Atmospheric Propagation and Adaptive Systems）
2017 SPIE 大气传播和自适应系统光学 专题会议
2017/4/25
The use of sensors for active and passive remote sensing of the Earth and its atmosphere, for free-space laser communication, and for high-resolution imaging of ground-based and airborne objects are f...
2017SPIE光电与红外系统专题会议（Electro-Optical and Infrared Systems:Technology and Applications）
2017 SPIE 光电与红外系统 专题会议
2017/4/25
Developments in electro-optic and infrared systems are key to providing enhanced capability to military forces as well as commercial systems. Advances in these technologies have been aimed not only at...
Frequency-Domain Equalization for Coherent Optical Transmission Systems
Coherent communications Fiber optics links subsystems
2015/5/26
Frequency-domain equalization (FDE) has been attracting much attention for high-speed long-haul transmission over fiber-optic channels. Two FDE configurations for coherent optical transmission are pre...
Unaltered Optical Fiber as an Absolute Wavelength Reference for OFDR Systems
Interferometry Phase measurement
2015/5/25
We present a novel method of obtaining an absolute wavelength reference for OFDR measurements using Rayleigh backscatter from standard optical fiber. We report 1 GHz (8pm)accuracy.
Cost-Effective and Power-Efficient Extended-Reach WDM/TDM PON Systems
Cost-Effective Power-Efficient Extended-Reach WDM/TDM PON Systems
2015/5/21
We propose a remote channel combine/split module for extended-reach WDM/TDM PON systems to significantly reduce initial investment with saving up to 60% and achieve good power efficiency when fully lo...
A Novel Dispersion and PMD Tolerant Clock Phase Detector for Coherent Transmission Systems
Novel Dispersion PMD Tolerant Clock Phase Detector Coherent Transmission Systems
2015/5/20
A novel clock phase detector is presented and shown to be tolerant to chromatic dispersion and PMD. The phase detector can be used in a clock recovery circuit for demodulation of 100 Gb/s coherent tra...
7dB Optical Power Budget Improvements of 11.25Gb/s Optical OFDM PON Systems Using Optical Filters
7dB Optical Power Budget Improvements 11.25Gb/s Optical OFDM PON Systems Optical Filters
2015/5/20
Wavelength offset super Gaussian optical filters enable 7dB increases in optical power budget of 11.25Gb/s optical OFDM PON systems using directly modulated DFBs, considerably relax filter bandwidth r...
7dB Optical Power Budget Improvements of 11.25Gb/s Optical OFDM PON Systems Using Optical Filters
7dB Optical Power Budget Improvements 11.25Gb/s Optical OFDM PON Systems Optical Filters
2015/5/20
Wavelength offset super Gaussian optical filters enable 7dB increases in optical power budget of 11.25Gb/s optical OFDM PON systems using directly modulated DFBs, considerably relax filter bandwidth r...
Present State of Standards for Ethernet PON Systems
Ethernet PON Systems Present State of Standards
2015/5/18
The past decade has witnessed a transformation of EPON from a research novelty into a mainstream broadband access technology. As EPON wins new ground and replaces older technologies, more and more SDO...
System Impairments and Performance Implications of ASE Seeded WDM PON Systems
ASE Seeded WDM PON Systems Performance Implications System Impairments
2015/5/18
Systematic analysis of various impairments in ASE seeded WDM PONs is presented and transmission performance limitations are determined in this paper. From a system perspective,characteristics of color...
PON Test Systems–From theory to field deployments
field deployments theory PON Test Systems
2015/5/18
This paper presents the first feedback from field experiments of remote fiber testing systems using U band, new High Resolution OTDR and Out-of-band reflective markers installed on the ONT side.