Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining


Pissadakis, S., Reekie, L., Zervas, M.N., Wilkinson, J.S. and Kiriakidis, G. (2001) Gratings in indium oxide film overlayers on ion-exchanged waveguides by excimer laser micromachining Applied Physics Letters, 78, (6), pp. 694-696. (doi:10.1063/1.1345836).

Download

[img] PDF StavrosAPL.pdf - Other
Download (177kB)

Description/Abstract

Relief Bragg gratings were imprinted by 248nm interferometric excimer laser ablation on potassium ion-exchanged channel waveguides in BK-7 glass overlaid with athin high-index InOx film. Using five pulses of energy density 60mJ/cm2, a spectral transmittance notch of depth 66% and Delta.lambda < 0.1nm was obtained at 1547nm in the TE polarisation for a waveguide having a nominal width of 8µm and a 135nm thick InOx overlayer. In waveguides coated with 100nm InOx, with widths increasing from 3µm to 8µm, the reflection wavelength shifted by 0.12nm/µm and the reflectivity increased monotonically.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1063/1.1345836
ISSNs: 0003-6951 (print)
Related URLs:
Keywords: Integrated optics, Waveguides, Gratings, Optical filters, Micromachining
Subjects:
Organisations: Optoelectronics Research Centre
ePrint ID: 260371
Date :
Date Event
February 2001Published
Date Deposited: 26 Jan 2005
Last Modified: 17 Apr 2017 22:14
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/260371

Actions (login required)

View Item View Item