Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
권호 표지
DOI QR코드

DOI QR Code

Time-domain Large-signal Modeling of Injection-locked Fabry-Perot Laser Diode for WDM-PON

WDM-PON용 주입 잠금 패브리-페롯 레이저 다이오드의 시영역 대신호 모델링

  • Lee, Seung-Hyun (Department of Electronics and Communications Engineering, Kwangwoon University) ;
  • Kim, Gun-Woo (Department of Electronics and Communications Engineering, Kwangwoon University) ;
  • Chung, Young-Chul (Department of Electronics and Communications Engineering, Kwangwoon University)
  • 이승현 (광운대학교 전자통신공학과) ;
  • 김건우 (광운대학교 전자통신공학과) ;
  • 정영철 (광운대학교 전자통신공학과)
  • Received : 2010.01.29
  • Accepted : 2010.03.17
  • Published : 2010.04.25
Download PDF
⟨ Previous Next ⟩

Abstract

A modeling methodology for the analysis of injection-locked Fabry-Perot laser diodes (FP-LDs), promising for cost-effective WDM-PON sources, is proposed. The time-domain large-signal model that is used is found to provide quite similar results to some experimental ones. With our methodology, we model characteristics of FP-LDs, such as influence of reflectivity at a facet and detuning on injection-locking. The eye diagram characteristics are also investigated. It is observed that the facet reflectivity at the injection side should be lower than 1% to provide stable operation in terms of good side-mode suppression ratio and independence from detuning between narrow-band injection noise and LD modes. It is also observed that good eye opening can be obtained for 155 Mbps modulation while the parameters such as the active region thickness should be properly optimized to obtain reasonable eye opening at 1.25 Gbps.

WDM-PON 용 저가형 광원으로 유망한 주입 잠금 패브리-페롯 레이저 다이오드의 특성 해석을 위한 모델링 방법을 제시하였다. 해석 방법으로는 시영역 대신호 모델을 이용하였으며, 계산 결과는 기존의 실험 결과와 유사한 경향을 보임을 확인하였다. 이를 토대로 특정한 파라미터를 가지는 레이저 다이오드 구조에서의 단면 반사율에 따른 동작 특성과 디튜닝, 아이 다이어그램등을 모델링 하였다. 특히 단면 반사율의 값에 따른 부모드 억제율 특성 및 디튜닝의 영향을 살펴보았으며, 주입되는 단면의 반사율이 1% 미만으로 유지되어야 안정된 특성을 얻을 수 있음을 확인하였다. 아이 다이어그램의 경우 155 Mbps 급에서는 손쉽게 아이 열림을 얻을 수 있지만, 1.25 Gbps 급에서는 레이저 다이오드의 활성층 두께 등의 파라미터를 적정화해야 적정한 아이특성을 얻을 수 있음을 보였다.

Keywords

References

  1. M. P. McGarry, M. Reisslein, and M. Maier, “Ethernetpassive optical network architectures and dynamic bandwidthallocation algorithms,” IEEE Commun. Surveys Tutorials10, 46-60 (2008). https://doi.org/10.1109/COMST.2008.4625804
  2. L. G. Kazovsky, W.-T. Shaw, D. Gutierrez, and S.-W. Wong,“Next-generation optical access networks,” IEEE J. LightwaveTechnol. 25, 3428-3442 (2007). https://doi.org/10.1109/JLT.2007.907748
  3. K. Grobe and J.-P. Elbers, “PON in adolescence from TDMAto WDM-PON,” IEEE Commun. Magazine 46, 24-26 (2008). https://doi.org/10.1109/MCOM.2008.4597098
  4. B. Kim and B.-W. Kim, “WDM-PON development anddeployment as a present optical access solution,” in Proc.Optical Fiber Comm. Conference (San Diego, CA, USA,Mar. 2009), paper OThP5.
  5. M.-H. Kim, S.-M. Lee, S.-G. Mun, and C.-H. Lee, “A 240 km reach DWDM-PON of 8-Gb/s capacity using an optical amplifier,” J. Opt. Soc. Korea 11, 1-4 (2007). https://doi.org/10.3807/JOSK.2007.11.3.093
  6. C.-H. Lee, V. Sorin, and B. Y. Kim, “Fiber to the homeusing a PON infrastructure,” IEEE J. Lightwave Technol.24, 4568-4583 (2006). https://doi.org/10.1109/JLT.2006.885779
  7. K. Park, S. Mun, K. Choi, and C. Lee, “A theoretical modelof a wavelength-locked Fabry-Perot diode to the externallyinjected narrow-band ASE,” IEEE Photon. Technol. Lett.17, 1797-1799 (2005). https://doi.org/10.1109/LPT.2005.851886
  8. B. S, Kim, J. K. Kim, Y. Chung, and S. H. Kim, “Time-domainlarge signal analysis of widely tunable DBR laserdiodes with periodically sampled and chirped gratings,”IEEE Photon. Technol. Lett. 10, 39-41 (1998). https://doi.org/10.1109/68.651094
  9. B. S, Kim, Y. Chung, and J.-S. Lee, “An efficient split-steptime-domain dynamic modeling of DFB/DBR laser diodes,”IEEE J. Quantum Electron. 36, 787-794 (2000). https://doi.org/10.1109/3.848349
  10. L. M. Zhang and J. E. Caroll, “Large signal dynamic modelof the DFB laser,” IEEE J. Quantum Electron. 28, 604-611(1992). https://doi.org/10.1109/3.124984