| 基于可调微腔光A/D转换器的研究 |
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| 引用本文： | 李正. 基于可调微腔光A/D转换器的研究[J]. 光子学报, 2008, 37(11): 2141-2144 |
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| 作者姓名： | 李正 |
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| 作者单位： | 淮阴师范学院,电子与电气工程系,江苏,淮安,223300 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 提出了利用可调微腔实现光A/D转换器的模型.微腔采用Ti-LiNbO3作为介质,模拟信号通过电极作用于微腔的介质,使介质的折射率发生变化,从而改变腔的谐振波长.不同的谐振波长代表不同的模拟信号电平.以4-bit光A/D转换器为例,采用光传输矩阵和电光效应理论,进行模型设计.通过腔内光场变化分析,得出了模型的所需最小采样时间为0.0583×10－9s,即最大采样速率为17.15 G次/s.
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| 关 键 词： | 光电子学 光ADC 可调微腔 稳定光场 采样速率 |
| 收稿时间： | 2008-03-10 |
| 修稿时间： | 2008-04-25 |
Photonic A/D Conversion by Tuning Micro-resonator |
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| LI Zheng. Photonic A/D Conversion by Tuning Micro-resonator[J]. Acta Photonica Sinica, 2008, 37(11): 2141-2144 |
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| Authors: | LI Zheng |
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| Affiliation: | LI Zheng(Department of Electronics , Electric Engineering,Huaiyin Normal College,Huaian,Jiangsu 223300,China) |
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| Abstract: | An optical Analog-to-digital conversion based on tuning micro-resonator was proposed.The crystal of Ti-LiNbO3 was used as the medium of the running micro-resonator when the refractive index of the micro-resonator was changed with analog signal by electrode;the resonant wavelength was changed in the cavity.The different levels of analog signal were denoted by the different resonant wavelength.The parameters of 4-bit optical analog-to-digital conversion were designed with the theoretic of the transmission mat... |
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| Keywords: | Optoelectronics Photonic A/D conversion Tuning micro-resonator Steady-state light field Sampling rate |
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