High-power and high-efficiency 1.3-μm superluminescent diode with flat-top and ultrawide emission bandwidth

  • M. Z.M. Khan
  • , H. H. Alhashim
  • , T. K. Ng
  • , B. S. Ooi*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We report on a flat-top and ultrawide emission bandwidth of 125 nm from InGaAsP/InP multiple quantum-well (MQW) superluminescent diode with antireflection coated and tilted ridge-waveguide device configuration. A total output power in excess of 70 mW with an average power spectral density of 0.56 mW/nm and spectral ripple ≤ 1.2 ± 0.5 dB is measured from the device. Wall-plug efficiency and output power as high as 14% and 80 mW, respectively, is demonstrated from this batch of devices. We attribute the broad emission to the inherent inhomogeneity of the electron-heavy-hole (e-hh) and electron-light-hole (e-lh) recombination of the ground state and the first excited state of the MQWs and their simultaneous emission.

Original languageEnglish
Article number7031427
JournalIEEE Photonics Journal
Volume7
Issue number1
DOIs
StatePublished - 1 Feb 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2009-2012 IEEE.

Keywords

  • Multiple Quantum-wells
  • high-power
  • superluminescent diode

ASJC Scopus subject areas

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

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