한국정보통신학회논문지 (Journal of the Korea Institute of Information and Communication Engineering)

  • 제17권8호
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  • Pages.1968-1973
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  • 2013
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  • 2234-4772(pISSN)
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  • 2288-4165(eISSN)
한국정보통신학회 (The Korea Institute of Information and Commucation Engineering)
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전계 흡수 변조기가 집적된 다중 전극 분포 궤환형 레이저를 이용한 광신호의 협대역 변조 응답 향상

Narrowband Modulation Response Enhancement Using a Dual-Electrode Distributed Feedback Laser Integrated With an Electro-Absorption Modulator

  • Cho, Jun-Hyung (School of Electronic and Electrical Engineering, College of Engineering, Hongik University) ;
  • Heo, Seo-Weon (School of Electronic and Electrical Engineering, College of Engineering, Hongik University) ;
  • Sung, Hyuk-Kee (School of Electronic and Electrical Engineering, College of Engineering, Hongik University)
  • 투고 : 2013.07.25
  • 심사 : 2013.08.16
  • 발행 : 2013.08.31
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초록

전계 흡수 변조기가 집적된 이중 전극 분포 궤환형 레이저를 사용하여 광신호의 변조 응답 향상을 실현하였다. 이 중 전극 구조의 분포 궤환형 반도체 레이저는 자려 펄스 발진 현상으로 인해 수 기가 헤르쯔의 모드 간격을 가진 다중 광모드 발진 현상을 보인다. 이 현상을 이용하여 RF 신호에 대한 광원의 변조 특성을 6 GHz 변조 신호에 대하여 약 20 dB 향상 시켰으며, 이러한 변조 성능 향상에 대하여 7 GHz의 주파수 가변 영역을 얻었다.

We present the enhancement of narrowband modulation response of an optical source by integrating a dual-electrode distributed feedback (DFB) laser with an electro-absorption modulator (EAM). The dual-electrode DFB laser exhibits a multiple optical modes owing to a self-pulsation in GHz range. By modulating the laser and modulator sections of the integrated device simultaneously, 20-dB of narrowband modulation response enhancement at 6 GHz with 7-GHz tuning range has been observed.

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참고문헌

  1. T. Berceli and P.R. Herczfeld "Microwave Photonics- A Historical Perspective," IEEE Trans. Microw. Theory Techn., vol. 58, no. 11, pp. 2992-3000, Nov. 2010. https://doi.org/10.1109/TMTT.2010.2076932
  2. R. Won "Microwave photonics shines," Nature Photon., vol. 5, no. 12, pp. 736, Dec. 2011.
  3. L. Chrostowski, X. Zhao, and C. J. Chang-Hasnain, "Microwave Performance of Optically Injection-Locked VCSELs," IEEE Trans. Microw. Theory Tech., vol. 54, no. 2, pp. 788-796, 2006. https://doi.org/10.1109/TMTT.2005.863066
  4. H. K. Sung, E. K. Lau, and M. C. Wu, "Optical Properties and Modulation Characteristics of Ultra-Strong Injection-Locked Distributed Feedback Lasers," IEEE J. Sel. Topics Quantum Electron., vol. 13, no. 5, pp. 1215-1221, Sep-Oct. 2007. https://doi.org/10.1109/JSTQE.2007.905153
  5. P.M anandarajah, S. Latkowski, C Browning, R Zhou, J. O'Carroll, R. Rhelan, B. Kellym J. O'Gorman and L.P. Barry "Integrated Two-section Discrete Mode Laser," IEEE Photon. J., vol. 4, no. 6, pp. 2085-2094, Dec. 2012. https://doi.org/10.1109/JPHOT.2012.2226023
  6. M. Möhrle, U. Feiste, J. Hörer, R. Molt, and B. Sartorius, "Gigahertz self-pulsation in 1.5 ${\mu}m$ wavelength multisection DFB lasers," IEEE Photon. Technol. Lett., vol. 4, no. 9, pp. 976-979, Sep. 1992. https://doi.org/10.1109/68.157120
  7. H. Wenzel, U. Bandelow, H. J. Wünsche, and J. Rehberg, "Mechanisms of fast self pulsations in two-section DFB lasers," IEEE J. Quantum Electron., vol. 32 no. 1, pp. 69-79, Jan. 1996. https://doi.org/10.1109/3.481922