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Fabrication of photonic devices in heavy metal oxide glass by femtosecond laser direct writing

Fabrication of photonic devices in heavy metal oxide glass by femtosecond laser direct writing
Fabrication of photonic devices in heavy metal oxide glass by femtosecond laser direct writing
Femtosecond laser can induce a permanent refractive index change inside various transparent materials via multiphoton absorption. This technique also opens up new possibilities for fabricating photonic devices in highly nonlinear glasses such as heavy metal oxide glass (HMO) which will be key to the development of all-optical switches and, in combination with thermal poling, to frequency converters and electro-optic modulators. Since self-focusing occurs in HMO glasses before reaching the optical breakdown threshold owing to the large n2, waveguide writing by femtosecond laser is challenging and so far waveguides at 633 nm have been achieved in HMO glass only outside of the region of filamentary propagation. In this paper, for the first time to our best knowledge, we report on the fabrication of high quality, low loss, channel waveguides and passive waveguide components at 1.5µm in bulk 12.5Bi glass without introducing self-focusing.
Yang, Weijia
ecad1a03-22e3-4a91-b6e6-a5f8660e2ab4
Corbari, Costantino
273904e8-5f90-4110-bc17-3d3f2c27d461
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Sakaguchi, Koichi
96822a3c-4adc-40d7-b350-3e713b1a039f
Yang, Weijia
ecad1a03-22e3-4a91-b6e6-a5f8660e2ab4
Corbari, Costantino
273904e8-5f90-4110-bc17-3d3f2c27d461
Kazansky, Peter G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c
Sakaguchi, Koichi
96822a3c-4adc-40d7-b350-3e713b1a039f

Yang, Weijia, Corbari, Costantino, Kazansky, Peter G. and Sakaguchi, Koichi (2007) Fabrication of photonic devices in heavy metal oxide glass by femtosecond laser direct writing. CLEO/Europe-IQEC 2007, Munich, Germany. 16 - 21 Jun 2007. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Femtosecond laser can induce a permanent refractive index change inside various transparent materials via multiphoton absorption. This technique also opens up new possibilities for fabricating photonic devices in highly nonlinear glasses such as heavy metal oxide glass (HMO) which will be key to the development of all-optical switches and, in combination with thermal poling, to frequency converters and electro-optic modulators. Since self-focusing occurs in HMO glasses before reaching the optical breakdown threshold owing to the large n2, waveguide writing by femtosecond laser is challenging and so far waveguides at 633 nm have been achieved in HMO glass only outside of the region of filamentary propagation. In this paper, for the first time to our best knowledge, we report on the fabrication of high quality, low loss, channel waveguides and passive waveguide components at 1.5µm in bulk 12.5Bi glass without introducing self-focusing.

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e-pub ahead of print date: June 2007
Venue - Dates: CLEO/Europe-IQEC 2007, Munich, Germany, 2007-06-16 - 2007-06-21

Identifiers

Local EPrints ID: 65750
URI: http://eprints.soton.ac.uk/id/eprint/65750
PURE UUID: fe699e95-f296-4b96-8f7b-17b617b0028d

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Date deposited: 23 Mar 2009
Last modified: 28 May 2021 16:33

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