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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 10, Iss. 5 — Mar. 11, 2002
  • pp: 230–235

Observation of light-induced refractive index reduction in bulk glass and application to the formation of complex waveguides

Ami M. Ljungström and Tanya M. Monro  »View Author Affiliations


Optics Express, Vol. 10, Issue 5, pp. 230-235 (2002)
http://dx.doi.org/10.1364/OE.10.000230


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Abstract

We show that illuminating bulk Nd-doped Bk7 glass at 488 nm induces a decrease in refractive index of order 10-4. Using this index change we experimentally demonstrate that it is possible to use self-writing to enhance the divergence of a Gaussian beam. Here simulations with a Laguerre-Gaussian ‘donut’ writing beam show that a depressed-index ‘pipe’ structure can be created. We demonstrate that these complex waveguide structures can subsequently be used to guide light of different wavelengths.

© 2002 Optical Society of America

OCIS Codes
(190.5940) Nonlinear optics : Self-action effects
(230.7370) Optical devices : Waveguides

ToC Category:
Research Papers

History
Original Manuscript: January 22, 2002
Revised Manuscript: February 12, 2002
Published: March 11, 2002

Citation
Ami Ljungstrom and Tanya Monro, "Observation of light-induced refractive index reduction in bulk glass and application to the formation of complex waveguides," Opt. Express 10, 230-235 (2002)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-10-5-230


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References

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