The effect of microcavity laser recombination lifetime on microwave bandwidth and eye-diagram signal integrity

C. H. Wu, F. Tan, M. K. Wu, M. Feng, N. Holonyak

Research output: Contribution to journalArticle

Abstract

Vertical microcavity surface-emitting lasers employing quantum wells and small aperture buried-oxide current and field confinement are demonstrated with wider mode spacing and faster spontaneous carrier recombination (enhanced Purcell factor), lower threshold current, larger side mode suppression ratio (SMSR), and higher photon density and temperature insensitivity. The result is a microcavity laser that achieves higher microwave modulation bandwidth (f -3dB 15.8 GHz) at ultra-low power consumption (1.5 mW) with a slope for the modulation current efficiency factor (MCEF) 17.47 GHz/mA-1/2, as well as a better quality eye diagram in high-speed data transmission. The microwave behavior model for the microcavity laser is used to estimate the enhanced recombination and reduced lifetime.

Original languageEnglish (US)
Article number053112
JournalJournal of Applied Physics
Volume109
Issue number5
DOIs
StatePublished - Mar 1 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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