Yanfeng, Zhang and McKnight, Loyd James and Engin, Erman and Watson, Ian and Cryan, Martin J. and Gu, Erdan and Thompson, Mark G. and Calvez, Stephane and O’Brien, Jeremy L. and Dawson, Martin (2011) GaN directional couplers for integrated quantum photonics. Applied Physics Letters, 99 (16). p. 161119. ISSN 0003-6951Full text not available in this repository. (Request a copy from the Strathclyde author)
Large cross-section GaN waveguides are proposed as a suitable architecture to achieve integrated quantum photonic circuits. Directional couplers with this geometry have been designed with aid of the beam propagation method and fabricated using inductively coupled plasma etching. Scanning electron microscopy inspection shows high quality facets for end coupling and a well defined gap between rib pairs in the coupling region. Optical characterization at 800 nm shows single-mode operation and coupling-length-dependent splitting ratios. Two photon interference of degenerate photon pairs has been observed in the directional coupler by measurement of the Hong-Ou-Mandel dip.
|Keywords:||optics, GaN directional coupler , waveguides, directional couplers, wide band gap semiconductors , sputter etching, Optics. Light|
|Subjects:||Science > Physics > Optics. Light|
|Department:||Faculty of Science > Institute of Photonics|
Faculty of Science > Physics
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|Depositing user:||Pure Administrator|
|Date Deposited:||16 Nov 2011 15:31|
|Last modified:||12 Jun 2013 16:11|
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