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Terahertz radiation, whose wavelengths lie between those of microwaves and visible light, can penetrate many nonmetallic materials and detect signatures of certain molecules. These handy qualities cou...
40 Gb/s Carrierless Amplitude and Phase Modulation for Low-Cost Optical Datacommunication Links
Fiber optics communications Modulation
2015/5/22
4 bps/Hz 40 Gb/s carrierless amplitude and phase (CAP) modulation is investigated for next-generation datacommunication links. The 40 Gb/s link achieves double the length of a conventional NRZ scheme,...
First Experimental Demonstration of Low-Cost VCSEL- Intensity Modulated End-to-End Real-Time Optical OFDM Signal Transmission at 11.25Gb/s over 25km SSMFs
VCSEL Intensity Modulated OFDM Signal Transmission
2015/5/20
Low-cost, narrow modulation bandwidth, un-cooled VCSELs can be utilized to directly modulate 64-QAM-encoded 11.25Gb/s signals for end-to-end real-time optical OFDM transmission over 25km SSMF IMDD sys...
Demonstration of Low-Cost Uplink Transmission in a Coherent OCDMA PON Using Gain-Switched Fabry–Perot Lasers With External Injection
Fabry–Perot (FP) laser gain-switching optical code-division multiple access (OCDMA) passive optical network (PON)
2016/12/2
We propose and demonstrate a simple and low-cost uplink transmission scheme for coherent optical code-division multiple access (OCDMA) passive optical networks (PONs), using gain-switched Fabry-Perot ...
2.5 Gbps Operation of RSOA for Low Cost WDM-PON Sources
Operation RSOA Cost WDM-PON Sources
2015/7/17
We present design issue of RSOA and report fabricated-device/packaged-module characteristics for WDM-PON. Optical gain, 3dB ASE bandwidth and polarization dependent gain were about 25 dB, 35 nm and le...
Transmission Performance Improvement Studies for Low-Cost 2.5 Gb/s Rated DML Sources Operated at 10 Gb/s
Transmission Performance Improvement Studies Rated DML Sources Operated
2015/7/31
Performance improvement methods for the operation of 2.5Gbps rated low-cost DML sources at 10Gbps over record distances are studied by means of chirp characteristics, offset receiver filtering and DFE...