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

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.
Authors:
; ;  [1] ;  [2] ;  [3] ; ; ; ; ; ; ;  [4]
  1. Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)
  2. Optoscribe Ltd, 0/14 Alba Innovation Centre, Alba Campus, Livingston EH54 7GA (United Kingdom)
  3. Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (United Kingdom)
  4. Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA (United Kingdom)
Publication Date:
OSTI Identifier:
22253947
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 22; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; CARBON NANOTUBES; DIELECTRIC MATERIALS; DOPED MATERIALS; ERBIUM; MODE LOCKING; RING LASERS; VISIBLE RADIATION; WAVEGUIDES