Browsing by Author "Chen, Jyehong"

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106-fJ/(bit.km) 2-km OFDM OM4 MMF Transmissions for Energy Efficient Optical Interconnects
(2013)
Lu, I-Cheng
;
Chen, Hsing-Yu
;
Wei, Chia-Chien
;
Shi, Jin-Wei
;
Tsai, Sheng-Fan
Employing high-performance 850-nm VCSELs with oxide-relief and Zn-diffusion structures, we demonstrate 17.8-Gbps 2-km OM4 fiber transmissions. Meanwhile, ultra-low EDDR of 106 fJ/(bit km) with bias current as low as 1.9 mA is achieved.
13.75-Gb/s OFDM Signal Generation for 60-GHz RoF System within 7-GHz License-Free Band via Frequency Sextupling
(2009)
Shih, Po-Tsung
;
Lin, Chun-Ting
;
Huang, Han-Sheng
;
Jiang, Wen-Jr
;
Chen, Jyehong
A 60-GHz RoF system with frequency sextupling is experimentally demonstrated. Based on modified SSB, a 13.75-Gb/s OFDM signal is generated within the 7-GHz license-free band. No penalty is observed after transmission over 25-km single-mode fiber.
14 Gbps 60 GHz RoF Link Employing a Simple System Architecture and OFDM Modulation
(2009)
Ng\'oma, Anthony
;
Sauer, Michael
;
Annunziata, Frank
;
Jiang, Wen-, Jr.
;
Shih, Po-Tsung
A radio-over-fiber system with a simple architecture is used to transport a 14 Gbps OFDM signal occupying the full 60 GHz band. Fiber lengths exceeding 3km are supported without any dispersion compensation.
192-Gbit/s PAM-4 Optical Interconnect using Mode-Division Multiplexing
(2018-01-01)
Hsu, Yung
;
Wu, Xinru
;
Chuang, Chun-Yen
;
Chow, Chi-Wai
;
Tsang, Hon Ki
192-Gbit/s pulse-amplitude-modulation-4 (PAM-4) signal transmission for on-chip optical interconnects using mode-division-multiplexing (MDM) is experimentally investigated. 3 channels are successfully mode multiplexed and de-multiplexed satisfying the forward-error correction (FEC) requirement.
2 x 2 MIMO radio-over-fiber system at 60 GHz employing frequency domain equalization
(2012-01-02)
Lin, Chun-Ting
;
Ng'oma, Anthony
;
Lee, Wei-Yuan
;
Wei, Chia-Chien
;
Wang, Chih-Yun
This work experimentally demonstrates the efficacy of the 2 x 2 multiple-input multiple-output (MIMO) technique for capacity improvement of a 60-GHz radio-over-fiber (RoF) system employing single-carrier modulation format. We employ frequency domain equalization (FDE) to estimate the channel response, including frequency response of the 60 GHz RoF system and the MIMO wireless channel. Using FDE and MIMO techniques, we experimentally demonstrate the doubling the of wireless data capacity of a 60 GHz RoF system to 27.15 Gb/s using 16-QAM modulation format, with transmission over 25 km of standard single-mode fiber and 3 m wireless distance. (C) 2011 Optical Society of America
2.1-Tb/s.km OFDM Long-Reach PON Transmission using a Cost-Effective Electro-Absorption Modulator
(2011-01-01)
Hsu, Dar-Zu
;
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Chen, Jyehong
;
Yuang, Maria C.
We experimentally demonstrate a superior performance of 2.1-Tb/s.km OFDM-signal transmission over 100-km long-reach PONs, which is achieved by using an EAM and direct-detection, and adopting the 128-QAM format and adaptive subcarrier power weighting.
2.6 Tbit/s On-Chip Optical Interconnect Supporting Mode-Division-Multiplexing and PAM-4 Signal
(2018-06-01)
Hsu, Yung
;
Chuang, Chun-Yen
;
Wu, Xinru
;
Chen, Guan-Hong
;
Hsu, Chin-Wei
In this letter, we combine the use of dense-wavelength-division-multiplexing and mode-division-multiplexing (MDM) with advanced-modulation formats for on-chip optical interconnects. A three-mode MDM multiplexer (MUX) and de-multiplexer (DEMUX) was designed and used. Each wavelength carrier had an aggregate data rate of 192-Gbit/s using 4-level pulse-amplitude-modulation. The mode crosstalk of the MDM MUX/DEMUX was measured to he below -20 dB in the 40-nm wavelength band from 1520 to 1560 nm. Fourteen wavelength channels are multiplexed and successfully transmitted with an aggregate transmission capacity of 2.6 Tbit/s (14 wavelengths x 3 modes x 64 Gbit/s) with all channels satisfying the hard-decision forward-error-correction threshold. Numerical analysis of the mode crosstalk is also performed.
20-Gbps WDM-PON Transmissions Employing Weak-resonant-cavity FPLD with OFDM and SC-FDE Modulation Formats
(2013-01-01)
Lu, I-Cheng
;
Chen, Hsing-Yu
;
Wei, Chia-Chien
;
Chi, Yu-Chieh
;
Lee, Yi-Cheng
We experimentally demonstrate a superior performance of 20-Gbps OFDM/SC-FDE transmission over 20-km WDM-PONs, using a channelized weak-resonant-cavity FPLD with a modulation bandwidth of only 1.25 GHz by using injection-locking, direct detection and adopting the power-loading algorithm.
20-Gbps WDM-PON transmissions employing weak-resonant-cavity FPLD with OFDM and SC-FDE modulation formats
(2013-04-08)
Lu, I-Cheng
;
Wei, Chia-Chien
;
Jiang, Wen-Jr
;
Chen, Hsing-Yu
;
Chi, Yu-Chieh
Using a colorless weak-resonant-cavity (WRC) FPLD injected by a centralized light source, we have experimentally demonstrated a superior performance of 20-Gbps uplink transmission in a WDM-PON. Even though the typical modulation bandwidth of a WRC-FPLD is only similar to 1.25 GHz, using spectrally-efficient 32-QAM OFDM or SC-FDE modulation, 20-Gbps uplink signals can achieve the FEC limit after 25-km dispersion-uncompensated single-mode fiber transmission. Because of the advantage of lower PAPR, the SC-FDE signals outperform the OFDM signals with the fixed 32-QAM format in the proposed system; moreover, SC-FDE scheme can be another promising candidate for uplinks in WDM-PONs, for its simplification to ONUs. The signal at the mode of 1560.7 nm shows similar quality with the signal at the modes of 1545.3 nm and 1574.7 nm, the WRC-FPLD, accordingly, has wide injection wavelength range from at least 1545.3 nm to 1574.7 nm. With the mode spacing of 0.55 nm, consequently, we have demonstrated the applicability of the colorless WRC-FPLD on supporting up to 36 channels in the WDM-PON. (C) 2013 Optical Society of America
21 Gb/s after 100 km OFDM long-reach PON transmission using a cost-effective electro-absorption modulator
(2010-12-20)
Hsu, Dar-Zu
;
Wei, Chia-Chien
;
Chen, Hsing-Yu
;
Chen, Jyehong
;
Yuang, Maria C.
We experimentally demonstrate a superior performance of 2.1-Tb/s.km OFDM signal transmission over 100-km long-reach PONs. While the bandwidth of a 100-km SMF transmission system is limited to 4.3 GHz due to positive chirp, we successfully achieve spectrally-efficient 21-Gb/s signaling by using a cost-effective and low-chirp EAM, and adopting the 128-QAM format and adaptive subcarrier pre-emphasis. (C)2010 Optical Society of America
21 Gbps OFDM Wireless Signal Transmission at 60 GHz Using a Simple IMDD Radio-over-Fiber System
(2010)
Ng\'oma, Anthony
;
Shih, Po-Tsung
;
George, Jacob
;
Annunziata, Frank
;
Sauer, Michael
A simple double-sideband IMDD RoF system is successfully employed to directly transport a 21 Gbps OFDM signal at 60 GHz over 500 m of standard single-mode fiber and 10 m wireless distance. (C)2010 Optical Society of America
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.
2x21 Gbps Symmetrical Full-Duplex Transmission of OFDM Wireless Signals over a Bidirectional IMDD Radio-over-Fiber System at 60 GHz
(2010)
Shih, Po-Tsung
;
Ng'oma, Anthony
;
Lin, Chun-Ting
;
Annunziata, Frank
;
Chen, Jyehong
A full-duplex bidirectional 60 GHz RoF system for in-building wireless applications employing DSB IMDD techniques is experimentally demonstrated. Symmetrical 2x21 Gbps transmission over 500-m standard single mode fiber and 2.5-m wireless distance is successfully achieved.
30-Gbps 100-km OFDM Transmission Using 10-GHz DML and Adiabatic-Chirp-Involved SSII Cancellation
(2016)
Cheng, Hsuan-Lin
;
Wang, Yi-Hsiang
;
Wei, Chia-Chien
;
Chen, Jyehong
;
光電工程學系
We experimentally verified the influences of adiabatic chirp on DML-based OFDM transmission, including fading and nonlinear distortion. Employing the proposed SSII cancellation, the capacity over 100-km transmission was increased by 55% to record-high 30 Gbps.
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.
32.65-Gbps OFDM RoF Signal Generation at 60GHz Employing an Adaptive I/Q Imbalance Correction
(2010)
Jiang, Wen-Jr
;
Lin, Chun-Ting
;
He, Li-Ying Wang
;
Wei, Chia-Chien
;
Ho, Chun-Hung
We experimentally demonstrated an adaptive I/Q imbalance correction scheme to compensate I/Q-imbalance. With I/Q correction, a 32.65-Gbps OFDM signal at 60 GHz within 7-GHz license-free band is successfully generated and, following 25km SMF transmission, negligible power penalty is observed.
400-Gb/s Transmission Over 10-km SSMF Using Discrete Multitone and 1.3-mu m EMLs
(2014-08-15)
Chan, Trevor
;
Lu, I-Cheng
;
Chen, Jyehong
;
Way, Winston I.
;
光電工程學系
We experimentally demonstrated 400-Gb/s transmission over 10-km standard single-mode using discrete multi-tone (DMT) and four 1.3-mu m local-area-network wavelength-division-multiplexed externally modulated lasers. A reasonably good system margin has been obtained. We have also investigated the fundamental limitations of using semiconductor optical amplifiers for DMT-based systems.
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.
512-Gbit/s PAM-4 Signals Direct-Detection using Silicon Photonics Receiver with Volterra Equalization
(2018-01-01)
Hsu, Yung
;
Chuang, Chun-Yen
;
Wei, Liang-Yu
;
Chow, Chi-Wai
;
Wu, Xinru
A 400-Gbit/s Ethernet (GbE) pulse-amplitude-modulation-4 (PAM-4) over 10-km single-mode-fiber (SMF) transmission direct-detected by an integrated silicon-photonics-receiver satisfying the IEEE P802.3bs requirement; and its feasibility to support 512-Gbit/s were illustrated.
52.5% Data Rate Improvement by Employing Volterra Filtering and Exponential Companding in a High Loss Budget and High-Capacity OFDM Long-Reach PON
(2016)
Chen, Hsing-Yu
;
Wei, Chia-Chien
;
Liu, Jun-Jie
;
Hsu, Chia-Wei
;
Wu, Hsin-Yu
An exponential companding method cooperating with Volterra filtering is proposed and demonstrated to substantially improve data rate by 52.5% in a 53.3-Gbps 60-km OFDM LR-PON with 30-dB loss budget based on 10-GHz EAM and PIN.