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High reflectivity Bragg gratings fabricated by 248nm excimer laser holographic ablation in thin Ta2O5 films overlaid on glass waveguides

High reflectivity Bragg gratings fabricated by 248nm excimer laser holographic ablation in thin Ta2O5 films overlaid on glass waveguides
High reflectivity Bragg gratings fabricated by 248nm excimer laser holographic ablation in thin Ta2O5 films overlaid on glass waveguides
Relief Bragg grating reflectors inscribed on channel waveguides may be used in optical communications as add-drop wavelength multiplexers, gain-flattening filters, distributed feedback laser mirrors, or in sensing technology as high sensitivity devices for precise monitoring of chemical or biomedical processes. We present strong Bragg grating reflectors in Ta2O5 thin oxide films overlaid on potassium ion exchanged channel waveguides in BK-7 glass, inscribed using 248nm excimer laser holographic ablation. The grating pattern was created employing two-beam interference using a modified Mach-Zehnder interferometric cavity and the output of a narrow-lined injection cavity 248nm excimer laser. The experimental data presented are divided into two sections: the first section refers to the study of the grating ablation process of thin Ta2Ofilms with respect to the exposure conditions; and the second focuses in the implementation of those relief grating in functional waveguide devices.
Pissadakis, S.
a91c54e0-3b8d-479f-b44e-e678bc34a277
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Zervas, Michael
1840a474-dd50-4a55-ab74-6f086aa3f701
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Pissadakis, S.
a91c54e0-3b8d-479f-b44e-e678bc34a277
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Zervas, Michael
1840a474-dd50-4a55-ab74-6f086aa3f701
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca

Pissadakis, S., Reekie, L., Zervas, Michael and Wilkinson, J.S. (2003) High reflectivity Bragg gratings fabricated by 248nm excimer laser holographic ablation in thin Ta2O5 films overlaid on glass waveguides. COLA '03, Crete, Greece. 04 - 09 Oct 2003. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Relief Bragg grating reflectors inscribed on channel waveguides may be used in optical communications as add-drop wavelength multiplexers, gain-flattening filters, distributed feedback laser mirrors, or in sensing technology as high sensitivity devices for precise monitoring of chemical or biomedical processes. We present strong Bragg grating reflectors in Ta2O5 thin oxide films overlaid on potassium ion exchanged channel waveguides in BK-7 glass, inscribed using 248nm excimer laser holographic ablation. The grating pattern was created employing two-beam interference using a modified Mach-Zehnder interferometric cavity and the output of a narrow-lined injection cavity 248nm excimer laser. The experimental data presented are divided into two sections: the first section refers to the study of the grating ablation process of thin Ta2Ofilms with respect to the exposure conditions; and the second focuses in the implementation of those relief grating in functional waveguide devices.

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More information

e-pub ahead of print date: 2003
Venue - Dates: COLA '03, Crete, Greece, 2003-10-04 - 2003-10-09

Identifiers

Local EPrints ID: 41617
URI: http://eprints.soton.ac.uk/id/eprint/41617
PURE UUID: c80dce07-4f29-4c40-a45e-dab98cba0037
ORCID for Michael Zervas: ORCID iD orcid.org/0000-0002-0651-4059
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 06 Oct 2006
Last modified: 18 Feb 2021 16:39

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