한국인터넷방송통신학회논문지 (The Journal of the Institute of Internet, Broadcasting and Communication)

  • 제14권3호
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  • Pages.43-49
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  • 2014
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  • 2289-0238(pISSN)
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  • 2289-0246(eISSN)
한국인터넷방송통신학회 (The Institute of Internet, Broadcasting and Communication)
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40Gbps에서 광 듀오바이너리 송신기의 전송 특성에 관한 연구

A Study on Transmission Performance for Optical Duobinary Transmitters at 40Gbps

  • 투고 : 2014.05.07
  • 심사 : 2014.06.13
  • 발행 : 2014.06.30
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초록

마크-젠더 변조기와 저역 통과 필터를 사용하여 광 듀오바이너리 신호를 생성하는 광 듀오바이너리 송신기의 전송 특성을 40Gbps에서 이론적으로 분석하였다. 광 듀오바이너리 시스템의 전송 성능은 송신기를 구성하는 저역 통과 필터와 광 필터 그리고 수신기내 필터의 대역폭에 따라 차이를 보였으며 각 필터들은 광 파워 스펙트럼에 각기 다른 영향을 주었다. 필터들의 최적화된 대역폭을 선택함으로써 광 듀오바이너리 신호 전송 시 부엽 발생과 리플을 억제시키고 분산 내성을 개선 할 수 있었다.

This paper presents a theoretical study of transmission performance for an optical duobinary transmitter employed a Mach-Zehnder modulator and a electrical low pass filter at 40Gbps optical communication links. It depends on the bandwidth of the low pass filter in the transmitter, the optical filter and the filter in the receiver. Also, each filter affected to the various parts of the optical power spectrum. By optimizing the bandwidth of each filter, we could control the side robes and the ripples and improve the dispersion tolerance of the transmission system.

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참고문헌

  1. Yu Chang Lu, Chia Chien Wei, Jason Chen, Kai Ming Feng, Pao Chai Yeh, Tzu Yen Huang, Ching Cheng Chang, Cheng Tsao, Sien Chi, "Effects of filter bandwidth and driving voltage on optical duobinary transmission systems," Optical Fiber Technology 13(2007) 231-235 https://doi.org/10.1016/j.yofte.2007.02.004
  2. Jaehoon Lee, Kyungsoo Kim, Duchang Heo, Jeongyun Ko, Jichai Jeong, "Improved dispersion tolerance of an optical duobinary transmitter based on a Mach-Zehnder modulator and an optical delay interferometer," Optics Communications 282, pp. 2354-2357, 2009 https://doi.org/10.1016/j.optcom.2009.03.010
  3. Dong Soo Lee, "Requirements for Improvement in Transmission Performance for an Optical Delay Interferometer based Optical Duobinary transmitters," Journal of IIBC, vol.10, no 6 pp. 119-123, Dec. 2010.
  4. Debabrata Sikdar, Vinita Tiwari, V.K. Chaubey, "Investigation of RZ and NRZ pulse shape for optimum Duobinary transmission at 40 Gbp," Optik 124 (2013) pp. 1148-1151 https://doi.org/10.1016/j.ijleo.2012.03.016
  5. G. P. Agrawal, Fiber-Optic Communications, Wiley, New York 2002.
  6. Cheng-Chung Chien, Ilya Lyubomirsky, "Comparison of RZ Versus NRZ Pulse Shapes for Optical Duobinary Transmission," Journal of Lightwave Technology, vol. 25, no 10 pp. 2953-2958, Oct. 2007. https://doi.org/10.1109/JLT.2007.903631
  7. Ilya Lyubomirsky, Bharath Pitchumani, "Impact of Optical Filtering on Duobinary Transmission," IEEE Photonics Tech. Letters, vol. 16, no. 8, Aug. 2004.