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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 2 — Jan. 15, 2010
  • pp: 238–240

Coupling-induced phase shift in a microring-coupled Mach–Zehnder interferometer

S. Darmawan, Landobasa Y. M. Tobing, and T. Mei  »View Author Affiliations


Optics Letters, Vol. 35, Issue 2, pp. 238-240 (2010)
http://dx.doi.org/10.1364/OL.35.000238


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Abstract

We experimentally study the effects of the coupling-induced phase shift (CIPS) in silicon-on-insulator microring-coupled Mach–Zehnder interferometer (MZI) devices for the flat-top filter application. Excellent agreement is obtained between the theoretical modeling and the experiment. It is demonstrated that width offset of the uncoupled MZI arm can compensate the CIPS and approximate a box-like filter with only 0.02% deviation from its ideal requirement.

© 2010 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.2790) Integrated optics : Guided waves
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.3120) Optical devices : Integrated optics devices
(230.4555) Optical devices : Coupled resonators

ToC Category:
Optical Devices

History
Original Manuscript: October 28, 2009
Revised Manuscript: December 7, 2009
Manuscript Accepted: December 9, 2009
Published: January 15, 2010

Citation
S. Darmawan, Landobasa Y. M. Tobing, and T. Mei, "Coupling-induced phase shift in a microring-coupled Mach-Zehnder interferometer," Opt. Lett. 35, 238-240 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-2-238


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