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Erbium-doped waveguide amplifiers fabricated using focused proton beam writing

  • K. Liu*
  • , E. Y.B. Pun
  • , T. C. Sum
  • , A. A. Bettiol
  • , J. A. Van Kan
  • , F. Watt
  • *Corresponding author for this work
  • City University of Hong Kong
  • National University of Singapore

Research output: Contribution to journalArticlepeer-review

Abstract

The proton beam writing (PBW) used to fabricate buried channel waveguides in Er3+-Yb3+ codoped with phosphate glass was investigated. Single 2.0 MeV proton beam energy and proton ion doses in the range of 1014-1015 ions/cm2 were used. The fluorescence and amplified spontaneous emission (ASE) spectra of the bulk glasses and waveguides were also measured. The results show that the net gain of the waveguide amplifiers at 1.534 μm single wavelength was ≅ 1.72dB/cm at 975 nm wavelength with 100 mW pump power.

Original languageEnglish
Pages (from-to)684-686
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number5
DOIs
StatePublished - 2 Feb 2004
Externally publishedYes

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