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Low loss photonic components in high index bismuth borate glass by femtosecond laser direct writing

Low loss photonic components in high index bismuth borate glass by femtosecond laser direct writing
Low loss photonic components in high index bismuth borate glass by femtosecond laser direct writing
Single mode, low loss waveguides were fabricated in high index bismuth borate glass by femtosecond laser direct writing. A specific set of writing parameters leading to waveguides perfectly mode matched to standard single-mode fibers at 1.55 µm with an overall insertion loss of ~1 dB and with propagation loss below 0.2 dB/cm was identified. Photonic components such as Y-splitters and directional couplers were also demonstrated. A close agreement between their performances and theoretical predictions based upon the characterization of the waveguide properties is shown. Finally, the nonlinear refractive index of the waveguides has been measured to be 6.6 x 10/W by analyzing selfphase modulation of the propagating femtosecond laser pulse at the wavelength of 1.46 µm. Broadening of the transmitted light source as large as 500 nm was demonstrated through a waveguide with the length of 1.8 cm.
1094-4087
16215-16226
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
Carvalho, Isabel C.
fc6f51d3-bd47-48f3-8f9b-83a838ae448e
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
Carvalho, Isabel C.
fc6f51d3-bd47-48f3-8f9b-83a838ae448e

Yang, Weijia, Corbari, Costantino, Kazansky, Peter G., Sakaguchi, Koichi and Carvalho, Isabel C. (2008) Low loss photonic components in high index bismuth borate glass by femtosecond laser direct writing. Optics Express, 16 (20), 16215-16226. (doi:10.1364/OE.16.016215).

Record type: Article

Abstract

Single mode, low loss waveguides were fabricated in high index bismuth borate glass by femtosecond laser direct writing. A specific set of writing parameters leading to waveguides perfectly mode matched to standard single-mode fibers at 1.55 µm with an overall insertion loss of ~1 dB and with propagation loss below 0.2 dB/cm was identified. Photonic components such as Y-splitters and directional couplers were also demonstrated. A close agreement between their performances and theoretical predictions based upon the characterization of the waveguide properties is shown. Finally, the nonlinear refractive index of the waveguides has been measured to be 6.6 x 10/W by analyzing selfphase modulation of the propagating femtosecond laser pulse at the wavelength of 1.46 µm. Broadening of the transmitted light source as large as 500 nm was demonstrated through a waveguide with the length of 1.8 cm.

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Published date: 29 September 2008

Identifiers

Local EPrints ID: 65788
URI: http://eprints.soton.ac.uk/id/eprint/65788
ISSN: 1094-4087
PURE UUID: b1ddfc71-2afb-49cb-9e25-037fc52dcf3e

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Date deposited: 20 Mar 2009
Last modified: 16 Apr 2021 16:33

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