Spectral and electro-optic response of UV-written waveguides in LiNbO 3 single crystals

C. L. Sones, P. Ganguly, Y. J. Ying, F. Johann, E. Soergel, R. W. Eason, S. Mailis

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

An experimental study of the spectral and electro-optic response of direct UV-written waveguides in LiNbO3 is reported. The waveguides were written using c.w. laser radiation at 275, 300.3, 302, and 305 nm wavelengths with various writing powers (35-60 mW) and scan speeds (0.11.0 mm/sec). Spectral analysis was used to determine the multimode and single mode wavelength regions and, the cut-off point of the fabricated waveguides. Electro-optic characterization of these waveguides reveals that the electro-optic coefficient (r33) decreases for longer writing wavelengths, with a maximum of 31 pm/V for 275 nm and, is reduced to 14 pm/V for waveguides written with 305 nm.

Original languageEnglish
Pages (from-to)23755-23764
Number of pages10
JournalOptics Express
Volume17
Issue number26
DOIs
Publication statusPublished - 21 Dec 2009
Externally publishedYes

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