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光模数转换系统中幅度不均匀性的校正 被引量：6

Correction of amplitude fluctuation for optical analog-to-digital conversion systems
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摘要 分析了采样时钟的幅度不均匀性对高速光模数转换系统性能的影响,提出了一种校正补偿采样时钟幅度不均匀性的方法。该方法通过对系统光采样时钟进行测量和数据处理,来获取校正因子序列,再用校正因子序列对采样结果进行补偿。对提出的方法进行了实验验证,结果表明:该方法可有效抑制了幅度不均匀性的影响,提高系统有效比特精度。 This paper analyzes the influence of the amplitude fluctuation of the sampling clock on the performance of high-speed optical analog-to-digital conversion systems,and presents a method to compensate the impact.The proposed method extracts a correction factor sequence from measuring the optical sampling clock by processing the sampling pulse sequence,and applies it to correct the sampling results.The method is verified experimentally.The results show that the method can effectively depress the impact of amplitude fluctuation and improve the effective number of bits（ENOB） of the system.
作者 神祥明 吴龟灵 李思其 郭攀 李新碗 陈建平
机构地区 上海交通大学区域光纤通信网与新型光通信系统国家重点实验室
出处 《光通信技术》 CSCD 北大核心 2011年第1期1-3,共3页 Optical Communication Technology
基金 国家973计划(ID2011CB301700)资助 国家自然科学基金项目(60877012 61071011)资助 上海市重大基础项目(10DJ1400402)资助 上海市重点基础项目(09JC1408100)资助
关键词 光采样 光模数转换 幅度不均匀性 校正 optical sampling optical analog-to-digital conversion amplitude fluctuation correction
分类号 TN911.7 [电子电信—通信与信息系统]
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参考文献11

  • 1KIM J, PARK M J, PERROTT M H, et al. Photonic subsampling analog-to-digital conversion of microwave signals at 40-GHz with higher than 7-ENOB resolution[J]. OPTICS EXPRESS, 2008, 16(21):16509-16515.
  • 2WALDEN R H.Analog-to-digital converter survey and analysis[J].IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1999, 17 (4):539-550.
  • 3WALDEN R H.Analog-to-digital converters and associated IC technologies[C]. 2008 IEEE CSIC Symposium. New Jersey: IEEE, 2008, 152-153.
  • 4CLARK T R, KANG J U, ESMAN R D. Performance of a time- and wavelength-interleaved photonic sampler for analog-digital conversion [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 1999, 11(9): 1168-1170.
  • 5JUODAWLKIS P W, TWlCHELL J C, BETTS G E, ET AL. Optically sampled analog-to-digital converters [J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49(10): 1840-1853.
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  • 10WU G L, LI S Q, LI X W, et al. 18 wavelengths 83.9Gs/s optical sampiing clock for photonic A/D converters[J]. OPTICS EXPRESS (to be published).

同被引文献36

  • 1WALDEN R H. Analog-to-digital converter survey and analysis [J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 1999, 17(4):539-550.
  • 2WALDEN R H. Analog-to-digital converters and associated IC tech- nologies [C]. 2008 IEEE CSIC SYMPOSIUM, New Jersey: IEEE, 2008, 152-153.
  • 3WEPMAN J A. Analog-to-digital converters and their applications in ra- dio receivers [J]. COMMUNICATION MAGAZINE, IEEE, 1995, 33 (5): 39-45.
  • 4KIM J, PARK M J, PERROTT M H, et al. Photonic subsampling ana- log-to-digital conversion of microwave signals at 40-GHz with higher than 7-ENOB resolution[J]. OPTICS EXPRESS, 2008, 16(21):16509-16515.
  • 5VALLEY G C. Photonic analog-to-digital converters [J]. OPTICS EX- PRESS, 2007, 15(5): 1955-1982.
  • 6WU G L, LI S Q, LI X W, et al. 18 wavelengths 83.9Gs/s optical sam- piing clock for photonic A/D converters [J]. OPTICS EXPRESS, 2010, 18 (20):21162-21168.
  • 7TWICHELL J C, HELKEY R. Phase-encoded optical sampling for ana- log-to-digital converters [J]. IEEE PHOTONICS TECHNOLOGY LET- TERS, 1999, 12:1237-1239.
  • 8JUODAWLKIS P W, TWICHELL J C, BETTS G E, et al. Optically sampled analog-to-digital convecters [J]. IEEE TRANSACTIONS ON MI- CROWAVE THEORY AND TECHNIQUES, 2001, 49(10): 1840-1853.
  • 9GUPTA S, JALALI B, 2nd order distortion cancellation in photonic time stretch analog-to-digital converter [J]. IEEE MICROWAVE SYMPO- SIUM, 2007, 239-232.
  • 10LI M, WU G L GUO P, et al. Analysis and compensation of disper- sion-induced bit loss in a photonic A/D converter using time-wavelength in- terweaved sampling clock [J]. OPTICS EXPRESS, 2009, 17 (20): 17764-17771.

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光通信技术
2011年 第1期

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