Evolution of the intensity profile of Cerenkov second-harmonic radiation with propagation distance in planar waveguides

Author

Mahalakshmi, V. ; Shenoy, M.R. ; Thyagarajan, K.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., New Delhi, India

Volume

32

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

137

Lastpage

144

Abstract

Using coupled mode theory, we have studied the output intensity profile of Cerenkov second-harmonic radiation from planar waveguides as a function of the propagation distance. In particular, we have obtained the variation of the intensity profile taking into account the effect of prism coupling as well as propagation loss, and have shown that the second-harmonic radiation evolves into a beam-like output. Results of the measured intensity profile of the second-harmonic radiation in proton-exchanged planar waveguides in Z-cut LiNbO₃ are also presented that are consistent with the theory

Keywords

Cherenkov radiation; coupled mode analysis; optical harmonic generation; optical planar waveguides; optical waveguide theory; Cerenkov second-harmonic radiation; LiNbO₃; beam-like output; coupled mode theory; intensity profile; planar waveguide; prism coupling; propagation distance; propagation loss; proton-exchanged Z-cut LiNbO₃; Free electron lasers; Frequency; Nonlinear optics; Optical coupling; Optical harmonic generation; Optical waveguides; Planar waveguides; Propagation losses; Waveguide lasers; Waveguide theory;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.481930

Filename

481930