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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 27 — Sep. 20, 2012
  • pp: 6489–6497

Design of optically path-length-matched, three-dimensional photonic circuits comprising uniquely routed waveguides

Ned Charles, Nemanja Jovanovic, Simon Gross, Paul Stewart, Barnaby Norris, John O’Byrne, Jon S. Lawrence, Michael J. Withford, and Peter G. Tuthill  »View Author Affiliations


Applied Optics, Vol. 51, Issue 27, pp. 6489-6497 (2012)
http://dx.doi.org/10.1364/AO.51.006489


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Abstract

A method for designing physically path-length-matched, three-dimensional photonic circuits is described. We focus specifically on the case in which all the waveguides are uniquely routed from the input to output—a problem that has not been addressed to date and that allows for the waveguides to be used in interferometric measurements. Circuit elements were fabricated via the femtosecond laser direct-write technique. We demonstrate via interferometric methods that the fabricated circuits were indeed optically path-length matched to within 45  μm, which is within the coherence length required for many applications.

© 2012 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(220.2740) Optical design and fabrication : Geometric optical design
(230.7370) Optical devices : Waveguides
(320.7160) Ultrafast optics : Ultrafast technology
(110.3175) Imaging systems : Interferometric imaging

ToC Category:
Optical Devices

History
Original Manuscript: June 5, 2012
Revised Manuscript: August 5, 2012
Manuscript Accepted: August 13, 2012
Published: September 12, 2012

Citation
Ned Charles, Nemanja Jovanovic, Simon Gross, Paul Stewart, Barnaby Norris, John O’Byrne, Jon S. Lawrence, Michael J. Withford, and Peter G. Tuthill, "Design of optically path-length-matched, three-dimensional photonic circuits comprising uniquely routed waveguides," Appl. Opt. 51, 6489-6497 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-27-6489

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