Browsing by Author "Song, Cih-Yuan"

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32-dB Loss Budget High-Capacity OFDM Long-Reach PON over 60-km Transmission without Optical Amplifier
(2014-01-01)
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Chu, Hsuan-Hao
;
Chen, Yu-Chao
;
Song, Cih-Yuan
For the first time, 33-Gbps 60-km OFDM transmission is demonstrated to show 32-dB loss budget without inline and pre-amplifier. Employing 10-GHz EAM and PIN, the long-reach PON can economically support 32 ONUs with >1-Gbps/ONU capacity.
50-Gbps 100-km EAM-based OFDM-IMDD Transmission Employing Novel SSII Cancellation
(2014-01-01)
Chen, Hsing-Yu
;
Wei, Chia-Chien
;
Chen, Yu-Chao
;
Chu, Hsuan-Hao
;
Song, Cih-Yuan
We build a new SSII cancellation technique to compensate both modulator nonlinearity and dispersion-induced nonlinear distortion. Employing the SSII cancellation to optimize EAM operation, superior 50-Gbps EAM-based OFDM-IMDD transmission over 100-km SSMF is successfully demonstrated.
SSII cancellation in an EAM-based OFDM-IMDD transmission system employing a novel dynamic chirp model
(2013-01-14)
Hsu, Dar-Zu
;
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Lu, Yi-Cheng
;
Song, Cih-Yuan
We develop a novel subcarrier-to-subcarrier intermixing interference (SSII) cancellation technique to estimate and eliminate SSII. For the first time, the SSII cancellation technique is experimentally demonstrated in an electro-absorption modulator-(EAM-) based intensity-modulation-direct-detection (IMDD) multi-band OFDM transmission system. Since the characteristics of SSII are seriously affected by the chirp parameter, a simple constant chirp model, we found, cannot effectively remove the SSII. Therefore, assuming that the chirp parameter linearly depends on the optical power, a novel dynamic chirp model is developed to obtain better estimation and cancellation of SSII. Compared with 23.6% SSII cancellation by the constant chirp model, our experimental results show that incorporating the dynamic chirp model into the SSII cancellation technique can achieve up to 74.4% SSII cancellation and 2.8-dB sensitivity improvement in a 32.25-Gbps OFDM system over 100-km uncompensated standard single-mode fiber. (C) 2013 Optical Society of America