Frequency Locked Single-Mode Optoelectronic Oscillator by Using Low Frequency RF Signal Injection

2013 ◽  
Vol 25 (4) ◽  
pp. 382-384 ◽  
Author(s):  
Yang Jiang ◽  
Guangfu Bai ◽  
Lin Hu ◽  
Hengwen Li ◽  
Zhuya Zhou ◽  
...  
Keyword(s):  
Low Frequency ◽  
Single Mode ◽  
Optoelectronic Oscillator ◽  
Signal Injection ◽  
Rf Signal

Frequency pulling in optoelectronic oscillator by RF signal injection

2020 ◽  
Vol 52 (4) ◽  
Author(s):  
Jayjeet Sarkar ◽  
Larissa Aguiar Dantas de Britto ◽  
Abhijit Banerjee ◽  
Nikhil Ranjan Das ◽  
Gefeson Mendes Pacheco
Keyword(s):  
Optoelectronic Oscillator ◽  
Frequency Pulling ◽  
Signal Injection ◽  
Rf Signal

A theoretical and experimental study of injection-pulling for IL-PLL optoelectronic oscillator under RF signal injection

Optik ◽  
2020 ◽  
Vol 203 ◽  
pp. 164059
Author(s):  
Abhijit Banerjee ◽  
Larissa Aguiar Dantas de Britto ◽  
Gefeson Mendes Pacheco
Keyword(s):  
Experimental Study ◽  
Optoelectronic Oscillator ◽  
Signal Injection ◽  
Rf Signal

Analysis and Simulation of Low Speed Sensorless Vector Control with Two Current Signal Injection Schemes

2013 ◽  
Vol 722 ◽  
pp. 361-368
Author(s):  
Yu Dong Li ◽  
Bo Zhou ◽  
Ying Liu ◽  
Cheng Liang Zhao
Keyword(s):  
Vector Control ◽  
Permanent Magnet Synchronous Motor ◽  
Low Frequency ◽  
Simulation Models ◽  
Position Estimation ◽  
Estimation Methods ◽  
Current Signal ◽  
Rotor Position ◽  
Sensorless Vector Control ◽  
Signal Injection

Two current signal injection methods, the fluctuating high frequency (HF) current signal injection and low frequency (LF) current signal injection, were discussed. The basic principles of rotor position self-sensing using these current signal injection and the key techniques in implementation were presented and the simulation models for sensorless vector control systems of a permanent magnet synchronous motor (PMSM) were established using two proposed rotor position estimation methods. Comparative simulation study of the fluctuating HF current signal injection and LF current signal injection was investigated, and draw the conclusions that the saliency-tracking scheme using fluctuating HF current signal injection possesses simpler configuration and better speed-adjustable performance both in static and dynamic.

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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