Browsing by Author "Lin, Che-Yu"

Now showing 1 - 6 of 6

224-Gbps Transmission for Next-Generation WDM Long-Reach PON Using CAP Modulation
(2016)
Chen, Kuan-Zhou
;
Chen, Li-Wei
;
Lin, Che-Yu
;
Huang, Wan-Jou
;
Wei, Chia-Chien
Leveraging high transmission bandwidth and loss budget provided by high launch power, we experimentally demonstrate 4-lambda 224-Gbps 32-CAP 60-km transmission using cost-effective 10-GHz-class EAM/PIN, supporting > 3-Gbps/ONU for a 64-ONU LR-PON, without inline and pre-amplifier.
A 200-Gbps OFDM Long-Reach PON over 60-km Transmission without Inline and Pre-Amplifier
(2015)
Chen, Hsing-Yu
;
Wei, Chia-Chien
;
Lin, Che-Yu
;
Chen, Li-Wei
;
Lu, I-Cheng
200-Gbps 60-km OFDM transmission in a 4-channel WDM system is demonstrated with 29-dB loss budget per channel without inline and pre-amplifier. Employing 10-GHz EAM and PIN, the LR-PON can support 64 ONUS with >2.5-Gbps/ONU capacity.
Frequency - and time-domain nonlinear distortion compensation in high-speed OFDM-IMDD LR-PON with high loss budget
(2017-03-06)
Chen, Hsing-Yu
;
Wei, Chia-Chien
;
Lin, Che-Yu
;
Chen, Li-Wei
;
Lu, I-Cheng
This study compared two nonlinear distortion compensation techniques, SSII cancellation (in the frequency domain) and Volterra filtering (in the time domain), in a > 50-Gbps/lambda OFDM-IMDD LR-PON. Experiment results for SNR, BER, and data rate (based on a bit-loading algorithm) revealed that the performance of frequency-domain SSII cancellation is unaffected by power fading; however, it depends heavily on the precision of the mathematical model. Conversely, although time-domain Volterra filtering is affected by the faded waveform, adaptive-weighting provides flexibility in dealing with mixed nonlinear distortion, particularly that associated with the interplay between fiber dispersion and fiber nonlinearity. 4-channel WDM-OFDM and 3rd-order Volterra filtering were used to demonstrate the feasibility of the proposed scheme in a 200-Gbps IMDD system. Based on 10-GHz EAM and PIN, we achieved 200-Gbps transmission over a distance of 60 km with a loss budget of > 30 dB, while providing support for 128 ONUs at >1.6 Gbps/ONU without the need for an inline amplifier or pre-amplifier. (C) 2017 Optical Society of America
High-Capacity Carrierless Amplitude and Phase Modulation for WDM Long-Reach PON Featuring High Loss Budget
(2017-02-15)
Wei, Chia-Chien
;
Chen, Kuan-Zhou
;
Chen, Li-Wei
;
Lin, Che-Yu
;
Huang, Wan-Jou
This paper utilizes spectrally efficient carrierless amplitude and phase (CAP) modulation and four wavelength division multiplexing channels in formulation of a high-capacity transmission system. The dispersion and loss associated with a single-mode fiber of 60 km can result in severe power fading and insufficient loss budget, respectively. This study employed high launch power to overcome these issues and thereby achieve long-reach transmission without the need for dispersion compensation or an optical inline amplifier. Modified Volterra filtering is used to deal with the linear and nonlinear distortions within the system. This allowed for the inclusion of cost-effective 10-GHz-class electro-absorption modulators and p-i-n detectors for 4-lambda 224-Gb/s 32-CAP 60-km transmission with a loss budget of 26 dB/channel. The proposed system provides support for the 64 optical network units (ONUs) with downstream transmission of > 3 Gb/s/ONU for future long-reach passive optical networks. We also examined the transmission performance of each channel under various launch powers. Increasing launch power from 9 to 18 dBm/channel increases the loss budget by 9 dB and expands the total capacity by 42%.
Reactions between Si melt and various ceramics
(2019-01-01)
Lin, Che-Yu
;
Lin, Kun-Lin
;
Lin, Chien-Cheng
;
材料科學與工程學系
;
Department of Materials Science and Engineering
Reactions between different kinds of ceramics and silicon were studied to evaluate ceramics as candidates for their use in the process of silicon-crystal growth. Three types of ceramic plates, Al2O3, ZrO2 and quartz (SiO2), were put into contact with a silicon wafer via annealing at 1450 degrees C for 30 min under an Ar atmosphere. Defects appeared at the Si-ceramics interface. Among these, a crack and a dislocation pile up were found at the Si-SiO2 dissolution couple. In addition, two intermetallic compounds, Y2Si2O7 and Zr-Si, produced by the diffusion of Y, O and Zr from the ZrO2 into the Si, were found at the Si-ZrO2 dissolution couple. At the interface of the Si-Al2O3 dissolution couple, no intermetallic compounds and few defects were found. The oxygen concentration and electrical resistivity near the interface were high and gradually decreased away from the interface for all Si-ceramics dissolution couples.
Underwater 6.4-m Optical Wireless Communication with 8.8-Gbps Encoded 450-nm GaN Laser Diode
(2016)
Chi, Yu-Chieh
;
Wu, Tsai-Chen
;
Lin, Che-Yu
;
Lu, Hai-Han
;
Kuo, Hao-Chung
6.4-m underwater optical wireless communication based on a GaN blue laser diode under direct 8.8-Gbps QAM-OFDM encoding is demonstrated with an average signal-to-noise ratio of 16 dB and a bit error rate of 3.8 x 10(-3).