研究目的
To perform the optical duobinary modulation technique to transfer two wavelengths (optical signals) from a generated dual-wavelength in microring resonator systems.
研究成果
The optical duobinary modulation technique is suitable for modulating and transmitting optical signals generated by microring resonators, achieving high-quality signal transmission with high quality factor and low BER. System optimization significantly enhances the performance, with the highest quality factor of 39.282 obtained for the optical signal at 1545 nm.
研究不足
The power degrades as the optical signal propagates along the optical fibers, necessitating loss compensation either by design optimizations or using different modulation techniques.
1：Experimental Design and Method Selection:
The study utilizes optical duobinary modulation technique for modulating dual-wavelength optical signals generated by a microring resonator system. The system includes two microring resonators with the same radius and coupling coefficients, modeled of GaAs–AlGaAs with GaAs core.
2：Sample Selection and Data Sources:
A Gaussian laser beam with power of 1 W is used as input. The optical signals are de-multiplexed to two different optical signals with center wavelengths of 1540 and 1545 nm.
3：List of Experimental Equipment and Materials:
The system includes Lithium Niobate (LiNbO3) Mach Zehnder modulator (MZM), optical fibers, Erbium doped fiber amplifier (EDFA), dispersion compensating fiber (DCF), and PIN photo detector.
4：Experimental Procedures and Operational Workflow:
The optical signals are modulated by the duobinary signals using the MZM and transmitted over an optical fiber communication system. The system performance is optimized through various parameters to enhance the quality factor.
5：Data Analysis Methods:
The quality factor and bit error rate (BER) of the transmitted signals are analyzed to evaluate the system performance.
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