Physical observation of single step UV-written integrated planar Bragg structures and their application as a refractive-index sensor
Applied Optics, Vol. 44, Issue 24, pp. 5042-5045 (2005)
http://dx.doi.org/10.1364/AO.44.005042
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Abstract
We present what is to our knowledge the first demonstration of a potentially low-cost refractive-index sensor based on UV processing. A channel waveguide and a Bragg grating are defined in a single UV processing step, resulting in a buried structure with a well-defined grating period. A subsequent wet etch process located over the Bragg grating opens a sensing window in the device and reveals the grating structure. Sensitivity of as much as 5×10^-6 was inferred from our device.
© 2005 Optical Society of America
OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.6010) Integrated optics : Sensors
Citation
Gregory D. Emmerson, Corin B. E. Gawith, Ian J. G. Sparrow, Richard B. Williams, and Peter G. R. Smith, "Physical observation of single step UV-written integrated planar Bragg structures and their application as a refractive-index sensor," Appl. Opt. 44, 5042-5045 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-24-5042
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