Lateral loss effects on modulation bandwidth in VCSELs

P. C. Chui, Siu Fung Yu

Research output: Journal article publicationConference articleAcademic researchpeer-review


Intensity noise and chromatic fiber dispersion in analog optical communication systems are attributed to harmonic and inter-modulation distortion in the amplitude modulation of semiconductor lasers. In addition, maximum usable bandwidth of the communication systems is limited by harmonic distortion. Due to the use of Fabry Perot type resonator, second harmonic distortion exists in both edge-emitting devices and VCSELs. However the distortion caused by lateral loss may be more so in VCSELs because of its smaller core size. Two factors, namely, the lateral field confinement factor and the lateral loss due to diffraction, are considered for their effect on harmonic distortion when the laser device is under small signal modulation.
Original languageEnglish
Pages (from-to)57-58
Number of pages2
JournalLEOS Summer Topical Meeting
Publication statusPublished - 1 Jan 1999
Externally publishedYes
EventProceedings of the 1999 IEEE/LEOS Summer Topical Meeting on Nanostructures and Quantum Dots - San Diego, CA, United States
Duration: 26 Jul 199927 Jul 1999

ASJC Scopus subject areas

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


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