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

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
권호 표지
DOI QR코드

DOI QR Code

Dispersion Tolerance for Optical Duobinary Transmitters based on a Mach-Zehnder Modulator and an Optical Filter

마크-젠더 변조기와 광 필터를 사용한 광 듀오바이너리 송신기의 분산 내성에 관한 연구

  • Received : 2011.02.20
  • Accepted : 2011.08.12
  • Published : 2011.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

We theoretically investigated dispersion tolerance of an optical duobinary transmitter employed a Mach-Zehnder modulator and an optical filter. Compared to the optical transmitter based on a Mach-Zehnder modulator and an optical delay interferometer by optimizing the applied voltage for improving the dispersion tolerance, the demonstrated duobinary transmitter provides improved receiver sensitivity and higher dispersion tolerance while maintaining narrow spectral bandwidth.

마크-젠더 변조기와 광 필터를 사용하여 광 듀오바이너리 신호를 생성하는 광 듀오바이너리 송신기의 분산 내성을 이론적으로 분석하였다. 송신기의 전송 성능은 마크-젠더 변조기와 광 간섭계를 사용하고 구동 전압 조정으로 최적화하여 분산 내성을 향상 시킨 광 듀오바이너리 송신기와 비교하였다. 그 결과 광 필터를 사용한 광 듀오바이너리 송신기는 좁은 스펙트럼 대역폭을 유지하면서 광 간섭계를 사용한 광 듀오바이너리 송신기보다 개선된 수신 감도와 더 높은 분산 내성을 나타냈다.

Keywords

References

  1. A. Royset and D. R. Hjelme, "Symmetry requirements for 10-Gbs/s optical duobinary transmitter," IEEE Photon. Technol. Lett., vol. 10, pp. 273-275, 1998 https://doi.org/10.1109/68.655382
  2. X. Wei, X. Liu, S. Chandrasekhar, A. H. Gnauck, G. Raybon, J. Leuthold, P. J. Winzer, in: Proceedings of the ECOC, paper 9.6.3., 2002
  3. 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
  4. J.M. Gene, R. Nieves, A. Buxens, C. Peucheret, J. prat, P. Jeppesen, "Reduced driving voltage optical duobinary transmitter and its impact on transmission performance over standard single mode fiber," IEEE Photonics Technology Letters, vol. 14, No. 6, pp. 843-845, 2000
  5. 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 vol. 13, pp. 231-235, 2007 https://doi.org/10.1016/j.yofte.2007.02.004
  6. S. K. Kim, J. Jeong, "Transmission performance on frequency response of receivers and chirping shape of transmitters of 10 Gb/s $LiNbO_{3}$ modulator based lightwave systems," Opt. Commun., vol. 175, pp. 109-123, 2000 https://doi.org/10.1016/S0030-4018(99)00755-5
  7. Agrawal, G. P. Nonlinear Fiber Optics, Academic Press, New York, 1989
  8. J. Lee, H. Jang, Y. Kim, S. Choi, S.G. Park, J. Jeong, "Chromatic dispersion tolerance of new doubinary transmitters based on two intensity modulators without using electrical low-pass filters," IEEE J. Lightwave Technol. vol. 22 pp. 2264-2270, 2004 https://doi.org/10.1109/JLT.2004.831136