| Linearization of Mach-Zehnder modulator using microring-based all-pass filter |
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| 作者姓名： | 杨建义 王帆 江晓清 屈红昌 吴亚明 王明华 王跃林 |
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| 作者单位： | Department of Information & Electronic Engineering Zhejiang University，Hangzhou 310027，State Key Laboratories of Transducer Technology，Shanghai Institute of Microsystem & Information Technology，Chinese Academy of Science，Shanghai 200050，Department of Information & Electronic Engineering Zhejiang University，Hangzhou 310027，Department of Information & Electronic Engineering Zhejiang University，Hangzhou 310027，State Key Laboratories of Transducer Technology Shanghai Institute of Microsystem & Information Technology，Chinese Academy of Science，Shanghai 200050，State Key Laboratories of Transducer Technology Shanghai Institute of Microsystem & Information Technology，Chinese Academy of Science，Shanghai 200050，Department of Information & Electronic Engineering Zhejiang University，Hangzhou 310027，Department of Information & Electronic Engineering Zhejiang University，Hangzhou 310027，State Key Laboratories of Transducer Technology，Shanghai Institute of Microsystem & Information Technology，Chinese Academy of Science，Shanghai 200050 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No. 60377030)
Major State Basic Research Development Program (No.G1999033104)
Chinese Academy of Science (No. CXJJ-73). |
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| 摘 要： | By applying the microring resonator to the Mach-Zehnder (MZ) optical modulator and employing the super-linear phase change characteristic of the all-pass filter, the sublinear modulation curve of the conventional MZ modulator is highly linearized. With properly controlled power coupling between the microring and the arm of the MZ modulator, the third-order distortion can be suppressed. If the transmission coefficient is set between 0.25 and 0.42, the linearity range larger than 90% can be easily achieved. The maximum linearity range is even up to 99.5%.
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