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Narrow Spectral Linewidth Full Band Tunable Laser Based on Waveguide Ring Resonators with Low Power Consumption
Lasers tunable Silica Waveguides Semiconductor optical amplifiers
2015/6/8
We have developed a widely tunable laser source that uses triple ring resonators with narrow spectral linewidth. A spectral linewidth of less than 100 kHz is obtained for all wavelength channels acros...
Self-Coherent Optical Transmission Using a Narrow Linewidth Tunable Slotted Fabry-Perot Laser
Coherent communication Semiconductor lasers
2015/6/4
A narrow linewidth slotted Fabry-Perot laser has been employed in a self-coherent optical transmission system. A comparison of the system performance of the tunable slotted laser with a SG-DBR laser h...
Observation of Narrow linewidth Beat Signal for Millimeter Wave Generation using MZM-Based Flat Comb Generator
Modulators Two-wave mixing
2015/6/4
We showed 100 GHz beat signals and estimated the linewidth of the beat signal. 100 GHz-spaced optical modes were extracted from 12.5 GHz-spaced comb signals. The linewidth was narrower than 1 Hz.
Experimental Demonstration on the Reduction of Linewidth Impact in a Self-Heterodyne Optical OFDM System
Fiber optics communications Modulation
2015/6/4
We show experimentally that the signal quality of a self-heterodyne optical OFDM system can be improved by temporally realigning the carrier with the subcarriers before photodetection. This can be exp...
Influence of SG-DBR Laser Linewidth on 10.7 Gb/s DPSK and OOK Transmission
SG-DBR Laser Linewidth DPSK OOK Transmission
2015/7/17
Calibration of tunable lasers is currently based on achieving sufficient SMSR and output power for transmission. As systems employing these devices move towards advanced modulation formats it becomes ...
Linewidth Investigation of Monolithically Integrated 40 GHz Mode-Locked Laser Diodes for High-Speed RZ-DQPSK Transmission
Monolithically Integrated Mode-Locked Laser Diodes High-Speed RZ-DQPSK Transmission
2015/8/3
The linewidth of an improved 40GHz modelocked laser diode is investigated. The influence of its operation parameters on linewidth and the resulting performance in a 40Gbaud-DQPSK system is evaluated.
Linewidth-Tolerant,ISI-suppressed 15-Gbit/s 64-QAM Transmission over 120-km SSMF
Linewidth-Tolerant ISI-suppressed Transmission SSMF
2015/7/31
2.5-Gsymbol/s 64-QAM transmission over 120-km standard-SMF was demonstrated by electronic pre-equalization for ISI supression and pilot-carrier aided optical phase-noise cancelling to obtain the BER o...
Linewidth control by overexposure in laser lithography
linewidth overexposure laser lithography
2011/5/5
In micro-electronic and micro-optical manufacturing, especially in the fabrication of linewidth-variation-sensitive devices, we sometimes care getting stable or precise linewidth rather than creating ...