Simultaneous bidirectional gigabit hybrid transmission system using optical carrier suppression in dual-parallel injection-locked FP-LDs

2008 ◽  
Author(s):  
Moon-Ki Hong ◽  
Yong-Yuk Won ◽  
Sang-Kook Han
Keyword(s):  
Transmission System ◽  
Optical Carrier ◽  
Hybrid Transmission ◽  
Optical Carrier Suppression

Fourth-generation Bidirectional Wireless Hybrid Transmission System Employing Power-Doubler-Amplifier and Data Comparator

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Rahul Mukherjee ◽  
Khaleda Mallick ◽  
Paulomi Mandal ◽  
Gour Chandra Mandal ◽  
Ardhendu Sekhar Patra
Keyword(s):  
Transport System ◽  
Single Mode ◽  
Cost Effective ◽  
Single Mode Fiber ◽  
Transmission System ◽  
Base Stations ◽  
Fourth Generation ◽  
Optical Carrier ◽  
Hybrid Transmission ◽  
Central Station

AbstractAn innovative cost-effective fourth-generation bidirectional wireless hybrid transport system, employing optical add-drop multiplexing technique, power doubler amplifier and data comparator, is proposed and experimentally demonstrated. The proposed system can transmits, downlink 80 community antenna television (CATV) channels, two different wireless-over-fiber (WoF) data signals (1.5-Gbps/2.4-GHz, 2.5-Gbps/3.5-GHz) at two different base stations over 40 km and 80 km single-mode fiber (SMF), respectively, and an uplink 5-Gbps baseband (BB) signal at central station over 40 km SMF, using a single optical carrier. The good carrier-to-noise ratio, composite-second order and composite-triple bit are achieved for CATV channels, and small BER and open eye-diagrams are achieved for WoF and BB signals.

scholarly journals Generation of (3, 1) Vector Signal Based on Probabilistic Shaping Technology without Precoding

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Jiangnan Xiao ◽  
Xu Dong ◽  
Bo Liu ◽  
Xingxing Feng ◽  
Chuang Zhao ◽  
...  
Keyword(s):  
Forward Error Correction ◽  
Single Mode ◽  
Optical Carrier ◽  
Error Ratio ◽  
Bit Error Ratio ◽  
Optical Carrier Suppression ◽  
Forward Error ◽  
Rf Signal ◽  
Vector Signal ◽  
Better Than

In this paper, we introduce the probabilistic shaping (PS) technique to the normal (3, 1) vector signal and simulate the generated PS (3, 1) photonic vector signal on an optical transmission system. The PS (3, 1) photonic vector signal is generated by a radio frequency (RF) signal at 12 GHz driving a Mach–Zehnder modulator- (MZM-) based optical carrier suppression (OCS) doubling, and the PS (3, 1) photonic vector signal is not precoding. The PS (3, 1) photonic vector signal and the normal (3, 1) photonic vector signal are used to transmit in 5 km, 10 km, and 20 km single-mode fibers (SMF), respectively. The simulation results demonstrate that the bit error ratio (BER) of the PS (3, 1) vector signal is less than the forward error correction (FEC) threshold of 3.8  ×  10−3, and the BER performance is better than that of the normal (3, 1) vector signal at 4 Gbit/s and 8 Gbit/s transmission rates.

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