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Demonstration of a directly written directional coupler using UV-induced photosensitivity in a planar silica waveguide

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2 Author(s)
Maxwell, G.D. ; BT Labs., Ipswich, UK ; Ainslie, B.J.

The authors report, for the first time, the demonstration of a UV directly written directional coupler in a planar silica waveguide on silicon. From the device parameters and the measured spectral characteristics, the UV-induced index change is calculated to be 0.0075. This is the highest photoinduced refractive index change reported to date in a planar silica waveguide

Published in:

Electronics Letters  (Volume:31 ,  Issue: 2 )