Paper Title:
Direct Laser Writing of Refractive Index Micro-Structures in Lithium Niobate
  Abstract

We report on micro-structuring of iron-doped lithium niobate using femtosecond direct laser writing (DLW) technique. Formation of extended, stable index modulation micro-structures, such as diffraction gratings and linear waveguides is achieved by translation of a focused femtosecond laser beam inside lithium niobate crystals. From diffraction efficiency of the recorded gratings refractive index modulation amplitude of n ~ 10-3 is estimated. It is demonstrated that the recorded structures can be optically erased and re-written.

  Info
Periodical
Edited by
Arturs Medvids
Pages
118-121
DOI
10.4028/www.scientific.net/AMR.222.118
Citation
V. Mizeikis, V. Purlys, W. Inami, Y. Kawata, "Direct Laser Writing of Refractive Index Micro-Structures in Lithium Niobate", Advanced Materials Research, Vol. 222, pp. 118-121, 2011
Online since
April 2011
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