Evanescent-wave coupled right angled buried waveguide: Applications in carbon nanotube mode-locking

Journal Article · Mon Nov 25 00:00:00 EST 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4834360· OSTI ID:22253947

Mary, R.; Thomson, R. R.; Brown, G. ^[1]; Beecher, S. J. ^[2]; Popa, D.; Sun, Z.; Torrisi, F.; Hasan, T.; Milana, S.; Bonaccorso, F.; Ferrari, A. C. ^[3]

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1. Optoscribe Ltd, 0/14 Alba Innovation Centre, Alba Campus, Livingston EH54 7GA (United Kingdom)
2. Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (United Kingdom)
3. Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA (United Kingdom)

We present an evanescent-field device based on a right-angled waveguide. This consists of orthogonal waveguides, with their points of intersection lying along an angled facet of the chip. Light guided along one waveguide is incident at the angled dielectric-air facet at an angle exceeding the critical angle, so that the totally internally reflected light is coupled into the second waveguide. By depositing a nanotube film on the angled surface, the chip is then used to mode-lock an Erbium doped fiber ring laser with a repetition rate of 26 MHz, and pulse duration of 800 fs.

• OSTI ID: 22253947
• Journal Information: Applied Physics Letters, Vol. 103, Issue 22; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
CARBON NANOTUBES
DIELECTRIC MATERIALS
DOPED MATERIALS
ERBIUM
MODE LOCKING
RING LASERS
VISIBLE RADIATION
WAVEGUIDES