Fabrication Method of Densely Spaced 1.55 μm Multiple-Wavelength Vertical-Cavity Surface-Emitting Laser Array Structure for the Application of Dense Wavelength Division Multiplexing

Jong Hee Kim, Byueng Su Yoo, Jae Heon Shin, Won Suk Han, O. Kyun Kwon, Youtig Gu Ju, Hyun Woo Song

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We demonstrate a very precise cavity-mode control scheme in a 1.55 μm multiple-wavelength vertical-cavity surface-emitting laser (VCSEL) array. For the precise control of the cavity mode, selective wet etchings of InP and InAlGaAs superlattice tuning layers are investigated using HC1/H2O and H3PO3/H2O2/H2O solution systems, respectively. The average calibrated cavity-mode spacing between channels for the fabricated eight-channel full VCSEL array structure is approximately 0.9 nm, which agrees well with the calculated value of 0.8 nm.

Original languageEnglish
Pages (from-to)137-139
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume43
Issue number1
DOIs
StatePublished - Jan 2004

Keywords

  • Cavity mode
  • InAlGaAs
  • InP
  • Laser array
  • MOCVD
  • Selective etching
  • Vertical-cavity surface-emitting laser (VCSEL)
  • WDM

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