Title :
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
fDate :
1/1/1996 12:00:00 AM
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;
Journal_Title :
Quantum Electronics, IEEE Journal of
