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Optics Letters

Optics Letters


  • Vol. 28, Iss. 6 — Mar. 15, 2003
  • pp: 399–401

Direct imaging of multimode interference in a channel waveguide

A. L. Campillo, J. W. P. Hsu, K. R. Parameswaran, and M. M. Fejer  »View Author Affiliations

Optics Letters, Vol. 28, Issue 6, pp. 399-401 (2003)

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By use of a near-field scanning optical microscope in collection mode, multimode interference was directly measured in an annealed proton-exchanged LiNbO3 waveguide. Periodic transitions from a single-peaked Gaussianlike intensity distribution to a double-peaked intensity distribution were observed. The intensity distribution along the waveguide was calculated, and the results agree well with the experimental observation.

© 2003 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(130.3730) Integrated optics : Lithium niobate
(180.5810) Microscopy : Scanning microscopy
(230.7380) Optical devices : Waveguides, channeled
(260.3160) Physical optics : Interference

A. L. Campillo, J. W. P. Hsu, K. R. Parameswaran, and M. M. Fejer, "Direct imaging of multimode interference in a channel waveguide," Opt. Lett. 28, 399-401 (2003)

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