搜索结果: 1-15 共查到“光学工程 polarization”相关记录144条 . 查询时间(0.128 秒)
Researchers devise new tool to measure polarization of light
Researchers new tool measure polarization of light
2016/7/4
Polarimetry has widespread applications within atmospheric sensing, telecommunications, biomedical imaging, and target detection. Several existing methods of imaging polarimetry trade off the sensor’s...
Comprehensive analyses based on the rigorous vector diffraction theory were used to simulate the polarized readout signals using a solid immersion lens (SIL) in reading phase change (PC) disks. For an...
Binary Phase Micro-Grating and Polarization Beam Splitter for Free-Space Micro Optical Pickups
2011/11/24
A pop-up binary-phase micrograting and a pop-up micro polarization beamsplitter, for potential use in micro-optical pickups, have been realized on a single silicon chip using a two-layer polysilicon a...
Differential cross-polarization modulation (DXPoM) wavelength conversion using a semiconductor optical amplifier has been proposed to outperform substantially traditional cross-polarization modulation...
Polarization-insensitive wavelength conversion, as well as the conversion of return-to-zero (RZ) ON-OFF keying (RZ-OOK) to RZ binary phase-shift keying (RZ-BPSK), has been simultaneously achieved at 4...
Theoretical investigation of polarization-insensitive data format conversion of RZ-OOK to RZ-BPSK in a nonlinear birefringent fiber
polarization insensitive date birefringent Theoretical
2011/11/17
Compared with traditional RZ-OOK, RZ differential phase-shift keying (RZ-DPSK) requires about 3-dB lower optical signal-to-noise ratio (OSNR) to achieve the same bit-error rate (BER), but a more compl...
Hybrid Integration of Semiconductor Optical Amplifier and Silica-based Planar Lightwave Circuit for Low Polarization Dependent Gain
Integrated optics devices Waveguides planar
2015/5/26
We demonstrated a semiconductor optical amplifier hybrid-integrated with a silica-based planar lightwave circuits. With deploying polarization diversity circuit, polarization dependent gain was reduce...
Multi-stage Carrier Phase Recovery and Nonlinear Polarization Crosstalk Canceller for XPM Mitigation
Coherent communications Nonlinear optics fibers
2015/5/26
Novel XPM mitigation technique by coordination of carrier phase recovery and nonlinear polarization crosstalk canceller is proposed. It doubles the Q improvement over conventional method in 112Gb/s DP...
Polarization Multiplexed (D)QPSK InP Receiver Photonic Integrated Circuits
Photonic integrated circuits Fiber optics communications Optoelectronics
2015/5/26
In this paper we review recent developments in the area of receiver photonic integrated circuits for the implementation of polarization multiplexed (differentially coded), quadrature phase shift keyin...
Optimized Pulse Shaping for Intra-channel Nonlinearities Mitigation in a 10 Gbaud Dual-Polarization 16-QAM System
Fiber optics communications Modulation
2015/5/26
An optimized pulse shape is shown to reduce intra-channel nonlinear effects in a 10 Gbaud dual-polarization 16-QAM EDFA-amplified system without optical dispersion compensation.
Monitoring of Orthogonal Polarization Power Ratio due to PDL using Intensity Tones in Polarization Multiplexed Signals
Fiber optics communications Fiber optics links subsystems
2015/5/25
We demonstrate a technique for monitoring orthogonal polarization power ratio (OPPR) occurring in WDM polarization-multiplexed signals due to PDL. We employ low-frequency intensity tones to estimate t...
Real-Time FPGA-Based Intradyne Coherent Receiver for 40 Gbit/s Polarization-Multiplexed 16-QAM
Coherent communications Optical communications
2015/5/25
Real-time detection of a 40 Gbit/s polarization-multiplexed square 16-QAM signal is demonstrated in an FPGA-based intradyne coherent receiver processing 100% of data. A minimum BER of 3.3×10 -5 is ach...
Polarization Division Multiplexed 2×10-Gbps Optical Data Transmissions over a Holey Fiber in 1-μm-waveband Photonic Transport System
Fiber optics communications Optical communications Microstructured fibers Semiconductor lasers
2015/5/22
Error-free polarization division multiplexed (PDM) 10-Gbps × 2-PDM transmission over a 3.7-km-long holey fiber in the 1-μm waveband, which are shown to be capable of 8.4-THz bandwidth transmission, is...
WDM Transmission of 152-Gb/s Polarization Multiplexed RZ-16QAM Signals with 25-GHz Channel Spacing over 15× ×80-km of SSMF
Fiber optical communications Fiber optics links subsystems
2015/5/22
We demonstrate transmission of 20×152-Gb/s PolMux-RZ-16QAM at a channel spacing of 25 GHz (5.68 b/s/Hz) over 15×80-km spans of SSFM. Coherent detection was used to recover the transmitted data and we ...
Polarization Insensitive Cross-Phase Modulation in 10.5-m Highly Ge-Doped Nonlinear Fiber
Nonlinear optics fibers Fibers polarization-maintaining Highly Ge- doped nonlinear fiber
2015/5/22
We demonstrate for the first time polarization-insensitive cross-phase modulation in a 10.5-m highly-Germanium-doped (75%) nonlinear-fiber. Its high compatibility with standard single mode fiber allow...