Neodymium-doped tantalum pentoxide waveguide lasers

Bayram Unal, M. Caterina Netti, Majid A. Hassan, Peter J. Ayliffe, Martin D.B. Charlton, Fernando Lahoz, Nicolas M.B. Perney, David P. Shepherd, Chao Yi Tai, James S. Wilkinson, Greg J. Parker

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


The fabrication, spectroscopic properties, and laser performance of Nd 3+-doped Ta 2O 5 channel waveguide lasers are described. Lasing is obtained at both 1.066 and 1.375 μm with threshold pump powers as low as 2.7 mW. The rib waveguides are reactive-ion-etched into Nd:Ta 2O 5 layers formed by reactive magnetron sputtering. These high-index low-loss rare-earth-doped waveguides are fabricated on silicon substrates and offer the potential for integration with photonic crystal structures for compact optical circuits.

Original languageEnglish
Pages (from-to)1565-1573
Number of pages9
JournalIEEE Journal of Quantum Electronics
Issue number12
StatePublished - Dec 2005


  • Integrated optics
  • Lasers
  • Waveguides


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