Direct laser written waveguide coupler with an optically tunable splitting ratio

M. Ams; R. J. Williams; M. J. Withford

doi:10.1117/12.875959

Direct laser written waveguide coupler with an optically tunable splitting ratio

M. Ams^*, R. J. Williams, M. J. Withford

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

2 Citations (Scopus)

48 Downloads (Pure)

Abstract

The femtosecond laser direct-write technique was used to create a 2x2 single-mode waveguide coupler in Yb-doped borosilicate glass. Initial modelling demonstrates that a reversible change in splitting ratio at 800 nm of more than 20% is possible (i.e. 50:50 to 30:70) if a shift in refractive index of the order of 1×10^-4 can be induced. Such a shift is expected to be achieved through resonant optical excitation at 976 nm of the ytterbium ions, which increases the refractive index through heating and the direct pumping of a saturable optical absorption.

Original language	English
Title of host publication	Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI
Editors	Alexander Heisterkamp, Joseph Neev, Stefan Nolte
Place of Publication	Bellingham, Washington
Publisher	SPIE
Pages	1-5
Number of pages	5
Volume	7925
ISBN (Print)	9780819484628
DOIs	https://doi.org/10.1117/12.875959
Publication status	Published - 2011
Event	Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI - San Francisco, CA, United States Duration: 23 Jan 2011 → 26 Jan 2011

Other

Other	Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI
Country/Territory	United States
City	San Francisco, CA
Period	23/01/11 → 26/01/11

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10.1117/12.875959

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title = "Direct laser written waveguide coupler with an optically tunable splitting ratio",

abstract = "The femtosecond laser direct-write technique was used to create a 2x2 single-mode waveguide coupler in Yb-doped borosilicate glass. Initial modelling demonstrates that a reversible change in splitting ratio at 800 nm of more than 20% is possible (i.e. 50:50 to 30:70) if a shift in refractive index of the order of 1×10-4 can be induced. Such a shift is expected to be achieved through resonant optical excitation at 976 nm of the ytterbium ions, which increases the refractive index through heating and the direct pumping of a saturable optical absorption.",

author = "M. Ams and Williams, {R. J.} and Withford, {M. J.}",

year = "2011",

doi = "10.1117/12.875959",

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volume = "7925",

pages = "1--5",

editor = "Alexander Heisterkamp and Joseph Neev and Stefan Nolte",

booktitle = "Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI",

publisher = "SPIE",

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note = "Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI ; Conference date: 23-01-2011 Through 26-01-2011",

}

Ams, M, Williams, RJ & Withford, MJ 2011, Direct laser written waveguide coupler with an optically tunable splitting ratio. in A Heisterkamp, J Neev & S Nolte (eds), Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI. vol. 7925, 79250K, SPIE, Bellingham, Washington, pp. 1-5, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI, San Francisco, CA, United States, 23/01/11. https://doi.org/10.1117/12.875959

Direct laser written waveguide coupler with an optically tunable splitting ratio. / Ams, M.; Williams, R. J.; Withford, M. J.
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI. ed. / Alexander Heisterkamp; Joseph Neev; Stefan Nolte. Vol. 7925 Bellingham, Washington: SPIE, 2011. p. 1-5 79250K.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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AU - Williams, R. J.

AU - Withford, M. J.

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N2 - The femtosecond laser direct-write technique was used to create a 2x2 single-mode waveguide coupler in Yb-doped borosilicate glass. Initial modelling demonstrates that a reversible change in splitting ratio at 800 nm of more than 20% is possible (i.e. 50:50 to 30:70) if a shift in refractive index of the order of 1×10-4 can be induced. Such a shift is expected to be achieved through resonant optical excitation at 976 nm of the ytterbium ions, which increases the refractive index through heating and the direct pumping of a saturable optical absorption.

AB - The femtosecond laser direct-write technique was used to create a 2x2 single-mode waveguide coupler in Yb-doped borosilicate glass. Initial modelling demonstrates that a reversible change in splitting ratio at 800 nm of more than 20% is possible (i.e. 50:50 to 30:70) if a shift in refractive index of the order of 1×10-4 can be induced. Such a shift is expected to be achieved through resonant optical excitation at 976 nm of the ytterbium ions, which increases the refractive index through heating and the direct pumping of a saturable optical absorption.

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M3 - Conference proceeding contribution

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T2 - Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XI

Y2 - 23 January 2011 through 26 January 2011

ER -

Direct laser written waveguide coupler with an optically tunable splitting ratio

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