A novel optical label swapping scheme for DPSK data transmissions using optical carrier suppression and separation technique without requiring a conventional wavelength converter

2005 ◽  
Author(s):  
A. Chowdhury ◽  
Jianjun Yu ◽  
Gee-Kung Chang
Keyword(s):  
Separation Technique ◽  
Wavelength Converter ◽  
Optical Carrier ◽  
Optical Carrier Suppression

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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