搜索结果: 1-12 共查到“光学仪器及技术 Efficient”相关记录12条 . 查询时间(0.203 秒)
High Speed Energy-Efficient Germanium Electro- absorption Modulator Featuring Monolithic Integration with Germanium p-i-n Photodetector
Optical devices Modulators
2015/5/26
We report a novel evanescent-coupled germanium electro-absorption modulator with a small active area of 16 μm 2 OCIS codes: (230.0230) Optical devices; (230.4110) Modulators giving an extinction ratio...
An Efficient Partial Link Monitoring Scheme for Inter-Domain Routing Under Dynamic Traffic Scenarios
Efficient Partial Link Monitoring Scheme Inter-Domain Routing Under Dynamic Traffic Scenarios
2015/5/25
We investigate link-state advertising in multi-domain networks with dynamic traffic. A novel triggering scheme is proposed to monitor a subset of domain links, and thereby achieve a balance between sa...
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...
Efficient Digital Coherent Detection of A 1.2-Tb/s 24- Carrier No-Guard-Interval CO-OFDM Signal by Simultaneously Detecting Multiple Carriers Per Sampling
Coherent communications Phase modulation
2015/6/10
We experimentally demonstrate efficient detection of a 1.2-Tb/s 24-carrier NGI-CO-OFDM signal with 12.5-Gbaud PDM-QPSK carrier-modulation by simultaneously recovering 2 or 3 carriers per 50-GSamples/s...
Investigation of Spectral Efficient Modulation Formats for 400Gbit/s/port Optical Packet Switched System
Switching Packet Optical communications
2015/6/8
We investigate the performance of NRZ-OOK, NRZ-DPSK, NRZ-DQPSK, NRZ-8PSK and NRZ-16-QAM modulation and their influence to an optical packet switched systems (OPS) performance.The aim was to demonstrat...
Highly Efficient Columnar-Quantum-Dot Semiconductor Optical Amplifier in High Temperature Condition
Semiconductor optical amplifiers Quantum dot devices
2015/6/8
A less temperature dependent columnar-quantum-dot semiconductor optical amplifier(CQD-SOA) with high efficiency is developed. At 50°C, a high penalty-free output power of~12 dBm together with a high g...
Optical Printed Circuit Board with an Efficient Optical Interface for 480-Gbps/cm 2 (20 Gbps x 12 ch x 2 layers) High-density Optical Interconnections
Polymer waveguides Optoelectronics
2015/6/4
We developed a high-speed (20 Gbps) and high-density (480 Gbps/cm 2 ) optical printed circuit board with a new two-lens optical interface for optical interconnections, and successfully demonstrated a ...
Cost Efficient Directly Modulated DPSK Downstream Transmitter and Colourless Upstream Remodulation for Full-duplex WDM-PONs
Optical communications Phase modulation
2015/6/4
We implement a cost efficient 10.7Gb/s directly modulated DPSK transmitter in a bidirectional WDM-PON, which also remodulates the downstream phase encoded signal for 2.5Gb/s OOK upstream transmission.
Dispersion Compensation Using Decision-Feedback MLSE for Spectrally-Efficient Optical Transmission
Dispersion Compensation MLSE Spectrally-Efficient Optical Transmission
2015/7/17
We propose a novel decision-feedback maximum likelihood sequence estimation, and numerically demonstrate its use in 10GS/s 8-ASK-DQPSK (8-ASK-QPSK) systems to significantly improve the dispersion tole...
Efficient Interleaving of FEC Codewords for Optical PSK Systems
Efficient Interleaving FEC Codewords Optical PSK Systems
2015/7/17
Differential encoding is required for phase modulation optical transmission systems but leads to higher bit error rate. We propose a construction of the codeword of the forward error correction allowi...
Domain-Reversed Lithium Niobate Single-Crystal Fibers are Potentially for Efficient Terahertz Wave Generation
Efficient Terahertz Wave Generation
2008/10/31
Nonlinear frequency conversion remains one of the dominant approaches to efficiently generate THz waves. Significant material absorption in the THz range is the main factor impeding the progress towar...
Demonstration of High Spectral Efficient OFDM-QAM Long Reach Passive Optical Network
High Spectral Efficient OFDM-QAM Passive Optical Network
2015/8/4
We demonstrate a high spectral-efficient LR-PON using 4Gb/s OFDM-QAM for both up-and-downstream, achieving a high split-ratio 256, using optical components optimized for GPON.
