Inverted Deposition and High-Velocity Spinning Technique to Develop Buried Planar Chalcogenide Glass Waveguides for Highly Nonlinear Integrated Optics
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Mairaj, A K, Curry, R J and Hewak, D W (2005) Inverted Deposition and High-Velocity Spinning Technique to Develop Buried Planar Chalcogenide Glass Waveguides for Highly Nonlinear Integrated Optics Applied Physics Letters, 86 (9). ISSN 00036951
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Abstract
We report on buried planar waveguides in a highly nonlinear infrared transmitting chalcogenide glass, fabricated using a combination of inverted deposition of the molten glass phase and high-velocity spinning. Films of gallium lanthanum sulphide (Ga:La:S) glass were deposited onto an expansion coefficient matched Ga:La:S cladding substrate. These amorphous films, with an optimized composition designed to be resistant against crystallization, were observed to have an excellent interface quality and uniformity. The designed planar chip had a buried core, 6 µm thick in the vertical direction, in single-mode operation at 1.064 µm and a measured propagation loss of <0.2 dB cm–1. Through this technique waveguides from Ga:La:S glass, a highly versatile optical semiconductor material, can potentially be used in nonlinear applications as well as provide passive and active integrated optic functionality into the infrared beyond 5 µm.
| Item Type: | Article |
|---|---|
| Additional Information: | Published in <i>Applied Physics Letters,</i> Vol. 86. Copyright 2005 American Institute of Physics. Click <a href=http://apl.aip.org/apl/>here</a> to access the journal's website. |
| Divisions: | Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre |
| ID Code: | 41 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:05 |
| Last Modified: | 27 Sep 2012 10:12 |
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