Analysis of transmission performance enhancement with injection-locked semiconductor lasers

Young Kwang Seo, Woo Young Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is well known that directly modulated semiconductor lasers have significant amounts of frequency chirping during modulation and this limits the performance of long-distance high speed fiber-optic communication systems [l]. One of the methods that can overcome this limitation is using injection-locked semiconductor lasers. Injection-locked semiconductor lasers can offer reduced chirping [2] and larger modulation bandwidth [3-41 with the proper adjustment of injection parameters such as injection ratio and frequency detuning. In this paper, the large signal characteristics of injection-locked semiconductor lasers and their performances in optical transmission systems are analyzed in detail. The rate equations for a single-mode semiconductor laser under optical injection [5] are numerically solved for the NRZ modulation format at the bit rate of 2.5 Gbps. The configuration used for the simulation is illustrated in Fig. 1. The laser parameters are obtained from [ 11, where the linewidth enhancement factor of 5 is used. The emitting power of the slave laser (SL) is maintained at about 3 mW for on state and 1 mW for off state, regardless of the injected optical power.

Original languageEnglish
Title of host publicationCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages916-917
Number of pages2
ISBN (Electronic)0780356616, 9780780356610
DOIs
Publication statusPublished - 1999 Jan 1
Event1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999 - Seoul, Korea, Republic of
Duration: 1999 Aug 301999 Sep 3

Publication series

NameCLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
Volume3

Other

Other1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
CountryKorea, Republic of
CitySeoul
Period99/8/3099/9/3

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Physics and Astronomy(all)

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    Seo, Y. K., & Choi, W. Y. (1999). Analysis of transmission performance enhancement with injection-locked semiconductor lasers. In CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics (pp. 916-917). [817899] (CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics; Vol. 3). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOPR.1999.817899