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Laser written waveguides for use in all-optical data networks

[The Laser Writing Team includes Graham Marshall, Martin Ams, Michael Withford, Alex Fuerbach, Nem Jovanovic, Jim Piper, Judith Dawes, Doug Little and Ben Johnston]

About the project

Australians are familiar with the current availability of 3D images inside blocks of glass, inscribed within using high power lasers. Sophisticated variations of those methods can also be used to write 3D features inside the glass that guide and manipulate light on microscopic scale. These features can act as the optical equivalent to electronics and its building block, the silicon chip, namely photonics and integrated lightwave circuits. In this project advanced direct write methods will be developed using ultrafast laser that enable lightwave circuits to be inscribed inside bulk glass for improved data communications in metropolitan area networks.

output of a femtosecond-written waveguide viewed in the far field	a block of glass with an array of waveguides written inside being probed to determine how good the guides are	conceptual waveguide amplifier
a grating inscribed inside an optical fibre core using a femtosecond laser	Mick Withford, Graham Marshall and University of Sydney researchers in the lab	graph depicting the transmission spectrum of a grating demonstrating strong reflectivity (greater than 20dB)

Publications

Journal Articles:

1. G. D. Marshall, M. Ams and M. J. Withford, "Direct laser written waveguide-Bragg gratings in bulk fused silica", accepted for publication 16/04/06 Opt. Lett. (ISSN 0146-9592).
2. L. Fu, G. D. Marshall, J. A. Bolger, P. Steinvurzel, E. C. Magi, M. J. Withfordand B. J. Eggleton, "Femtosecond laser writing Bragg gratings in pure silica photonic crystal fibres", Electron. Lett. (ISSN 0013-5194), vol. 41, pp. 638-640, 2005. [1 citations]
   
3. M. Ams, G. D. Marshall,.D. J. Spence and M. J. Withford, "Slit beam shaping method for femtosecond laser direct-write fabrication of symmetric waveguides in bulk glasses", Opt. Exp. (ISSN 1094-4087), vol. 13, pp. 5676-5681, 2005. [2 citations]

International Conference Articles (full length papers):

1. D. Little, G. D. Marshall, M. Ams and M. J. Withford, "Near field scanning optical microscopy of femtosecond laser written waveguides", paper WB13, Advanced Solid State Photonics (ASSP?f05), Vienna, Austria, 2005.
   
2. G. D. Marshall, M. Ams and J. A. Withford, "Point by point femtosecond laser inscription of fibre and waveguide Bragg gratings for photonic device fabrication" Proceedings of the Pacific International Conference on Appl. Of Lasers and Optics (Laser Institute of America) 04 (ISBN 0-912035-76-5), Melbourne, Australia, in press 2006.
   
3. D. J. Little, G. D. Marshall and M. J. Withford, "Fabrication of periodic, resonant features in optical fibres using a CO2 laser micro-tapering system", Proceedings of the Pacific International Conference on Appl. Of Lasers and Optics (Laser Institute of America) 04 (ISBN 0-912035-76-5), Melbourne, Australia, in press 2006.
   
4. A. J. Lee, M. J. Withford, J. M. Dawes  and G. D. Marshall, "Fabrication of C-Band resonant structures in rib waveguides", Proceedings of the Pacific International Conference on Appl. Of Lasers and Optics (Laser Institute of America) 04 (ISBN 0-912035-76-5), Melbourne, Australia, in press 2006.
   
5. J. M. Dawes, G. D. Marshall and M. J. Withford, "Tilted fibre gratings for sideways light delivery", Proceedings of the Pacific International Conference on Appl. Of Lasers and Optics (Laser Institute of America) 04 (ISBN 0-912035-76-5), Melbourne, Australia, in press 2006.
   
6. M. Ams, G. D. Marshall, J. A. Piper and M. J. Withford, "Active devices fabricated in bulk glass via femtosecond laser pules", Proceedings of the Pacific International Conference on Appl. Of Lasers and Optics (Laser Institute of America) 04 (ISBN 0-912035-76-5), Melbourne, Australia, in press 2006.
   
7. G. D. Marshall, M. Ams, M. J. Withford, "Femtosecond inscription of wavelength specific features in passive and active optical waveguide structures", Proceedings of SPIE Photonics Europe ?e06, in press 2006.

International Conference Articles (extended abstracts):

1. M. Ams, M. J. Withford, G. D. Marshall, J. M. Dawesand J. A. Piper, "Spatially profiling femtosecond laser pulses to direct-write optical waveguides in phosphate glass", paper CJ3 in Technical Digest of CLEO-Europe?f05 (ISBN 0-7803-8974-3), Munich, Germany, 2005.
   
2. L. Fu, G. D. Marshall, J. A. Bolger, P. E. Steinvurzel, E. C. Ma?Ngi, M. J. Withford,B. J. Eggleton, "Fibre Bragg Gratings Written in Pure Silica Photonic Crystal Fibres with Ultraviolet Femtosecond Laser Pulses", in Technical Digest of Bragg Gratings, Poling and Photosensitivity and 30th Australian Conference on Optical Fibre Technology (BGPP/ACOFT 2005), Darling Harbour, 2005.
   
3. J. M. Dawes, G. D. Marshall, M. J. Withford and B. Kwok, "Tilted fibre Bragg gratings written using a subpicosecond pulsed laser" in Technical Digest of Bragg Gratings, Poling and Photosensitivity and 30th Australian Conference on Optical Fibre Technology (BGPP/ACOFT 2005), Darling Harbour, 2005.
   
4. M. Ams, G. D. Marshall, J. A. Piper, M. J. Withford, "Femtosecond laser writing of symmetric, low loss waveguides in active glasses", paper WBB2 in Technical Digest of LEOS 2005, 18th Annual Meeting of the IEEE Lasers and Electro-optics Society, Sydney, 2005.

National Conference Papers (extended abstracts):

1. G. D. Marshall and M. J. Withford, "Femtosecond inscription of fibre Bragg gratings in active and passive fibres: the point by point method", paper ThC3, Australasian Conference for optics, lasers and spectroscopy (ACOLS), Rotorua, New Zealand, 2005.
   
2. M. Ams, G. D. Marshall, J. A. Piper, M. J. Withford, "Photonic devices fabricated in bulk glass by femtosecond laser pulses", paper ThP1, Australasian Conference for optics, lasers and spectroscopy (ACOLS), Rotorua, New Zealand, 2005.

Non-Peer reviewed Published Articles:

1. M. Ams, G. D. Marshall, D. Spence, J. M. Dawes, J. A. Piper and M. J. Withford, "Direct writing of guided wave devices inside bulk glass using femtosecond lasers", Australian Optical Society News, Vol. 19, No. 1, pp. 8-11, 2006.

 

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