Optical amplification characteristics of Ti-diffused waveguides on Erbium-doped LiNbO3 crystal

So Kogahara, Satoshi Shinada, Shinya Nakajima, Tetsuya Kawanishi, Hirochika Nakajima, Masayuki Izutsu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We have first fabricated and characterized Ti-diffused channel waveguides on Er-doped LiNbO3 single crystal. We achieved an optical gain of 2.1 dB/cm at 1531.4 nm signal light (TM mode) by optical pumping at 1480nm with pump power of 200mW/port for a 40mm long Ti-diffused Z-cut 0.5mol% Er-doped LiNbO3 waveguide. The total gain of a pig tailed device was 3.8dB.

Original languageEnglish
Pages (from-to)134-139
Number of pages6
Journalieice electronics express
Issue number4
Publication statusPublished - 2007 Feb 25
Externally publishedYes


  • Er
  • LiNbO
  • Loss compensated waveguide
  • Optical amplifier
  • Ti-diffusion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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