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Characterization of Semiconductor-Laser Phase Noise with Digital Coherent Receivers
Characterization Semiconductor-Laser Phase Noise Digital Coherent Receivers
2015/5/20
We develop a method of characterizing semiconductor-laser phase noise using a digital coherent receiver. The field spectrum, FM-noise spectrum, and phase-error variance can completely describe phase-n...
Structural Characterization of Lignins Isolated from Caragana sinica Using FT-IR and NMR Spectroscopy
Caragana sinica Lignin Structural characterization FT-IR NMR
2012/4/17
In order to efficiently explore and use woody biomass, six lignin fractions were isolated from dewaxed Caragana sinica via successive extraction with organic solvents and alkaline solutions. The ligni...
Characterization of Integrated Polarization-Diversity DPSK Demodulator with Two-Dimensional Chirped Grating Couplers and Ring Resonators
Integrated optics devices Fiber optics communications
2015/6/4
We describe the design and experimental results of an integrated polarization-diversity DPSK demodulator. The integration of 2-D chirped grating couplers enabled polarization-diversity operation with ...