High performance modules of 2.5 Gbps modulator integrated DFB lasers using new RF impedance matching technique

S. H. Lee, J. H. Ahn, Y. K. Oh, J. S. Ma, A. G. Choo, T. I. Kim, Yonggyoo Kim, Jichai Jeong

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We report the improvement of frequency response characteristics of 2.5 Gbps modulator integrated distributed feedback (MI-DFB) laser modules using new impedance matching technique. Frequency responses for the fabricated module using the '+' shaped microstrip line for impedance matching have been significantly improved such as the RF return loss of 11 dB and the 3 dB frequency bandwidth of 4.1 GHz, compared to 6 dB return loss and 1.5 GHz bandwidth for the conventional module. These results can be also well predicted by the simulation of frequency responses for the modules. From the fabricated MI-DFB laser modules, good transmission performance has been obtained has been obtained up to 640 km.

Original languageEnglish
Pages (from-to)407-410
Number of pages4
JournalIEEE Transactions on Advanced Packaging
Volume24
Issue number3
DOIs
Publication statusPublished - 2001 Aug

Keywords

  • Distributed feedback lasers
  • Equivalent circuits
  • Frequency response
  • Impedance matching
  • Modulators
  • Scattering parameters
  • Simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'High performance modules of 2.5 Gbps modulator integrated DFB lasers using new RF impedance matching technique'. Together they form a unique fingerprint.

  • Cite this