Compact Mach-Zehnder interferometer based on self-collimation of light in a silicon photonic crystal

Hoang M. Nguyen, M.A. Dundar, R.W. van der Heijden, E.W.J.M. van der Drift, H.W.M. Salemink, S. Rogge, J. Caro

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

Optical waveguides based on silicon-on-insulator (SOI) and fabricated in CMOS compatible technology will likely replace electrical interconnects for high data rate circuits. In this context, a modulator based on a silicon-waveguide Mach-Zehnder interferometer (MZI) is very promising [2]. However, the requirement of producing a π phase shift in one arm of the MZI implies a millimeter scale footprint of the device, which is a serious disadvantage for integration in micro-processors. Therefore, strong efforts are made to miniaturize MZI modulators without compromising the required phase shift, particularly using slow light engineering in photonic crystals (PhCs). Here, we demonstrate a different concept for a compact MZI built from a PhC operating in the special regime of self-collimation of light. To reach this regime, we have tailored the photonic band structure such as to produce self-collimated beams. The properties of these beams are such that we can manipulate them to form the arms of the MZI in a very small area of 20×20 μm2.
Originele taal-2Engels
TitelIntegrated Photonics Research, Silicon and Nanophotonics, IPRSN 2010
UitgeverijOptical Society of America (OSA)
Aantal pagina's3
ISBN van geprinte versie978-1-55752-895-7
DOI's
StatusGepubliceerd - 2010
EvenementIntegrated Photonics Research, Silicon and Nanophotonics, IPRSN 2010 - Monterey, CA, Verenigde Staten van Amerika
Duur: 25 jul 201028 jul 2010

Congres

CongresIntegrated Photonics Research, Silicon and Nanophotonics, IPRSN 2010
LandVerenigde Staten van Amerika
StadMonterey, CA
Periode25/07/1028/07/10

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