Analysis of large-signal dynamic characteristics of 10-Gb/s tunable distributed Bragg reflector lasers integrated with electroabsorption modulator and semiconductor optical amplifier based on the time-dependent transfer matrix method

Yonggyoo Kim, Jichai Jeong

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We investigate large-signal dynamic characteristics of tunable distributed Bragg reflector (DBR) lasers with different structures. Because of high chirp and complex structures of tunnable DBR lasers, it is difficult to accurately analyze large signal chirp and output pulse shapes with analytical models. Therefore, we apply a numerical model based on the time-dependent transfer matrix method to tunable DBR lasers integrated with electroabsorption modulator (EAM) and semiconductor optical amplifier (SOA). Using this model, we find a suitable α-parameter range in the Bragg grating section (αBragg-parameter) that produces the tolerable wavelength chirp while maintaining a proper tuning range. To employ the tunable lasers in wavelength division multiplexed networks and improve flexibility of the networks, the tunable lasers should have high output power and low wavelength chirp. According to our simulation results, the EAM section had better be located in between SOA and DBR laser sections to obtain high output power and low wavelength chirp.

Original languageEnglish
Pages (from-to)1314-1320
Number of pages7
JournalIEEE Journal of Quantum Electronics
Volume39
Issue number10
DOIs
Publication statusPublished - 2003 Oct

Keywords

  • Chirp modulation
  • Distributed Bragg reflector (DBR) lasers
  • Electroabsorption
  • Modulation
  • Optical feedback
  • Simulation
  • Tunable devices

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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