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On-chip optical filters with designable characteristics based on an interferometer with embedded silicon photonic structures |
Optics Letters, Vol. 37, Issue 4, pp. 665-667 (2012)
http://dx.doi.org/10.1364/OL.37.000665
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Abstract
We demonstrate chip-scale flat-top filters at near-IR wavelengths using negative index photonic crystal based Mach–Zehnder interferometers. Supported by full three-dimensional numerical simulations, we experimentally demonstrate a new approach for engineering high-pass, low-pass, bandpass, and band-reject filters, based on designing the photonic band diagram both within the bandgap frequency region and away from it. We further show that our approach can be used to design filters that have tunable multilevel response for different sections of the spectrum and for different polarizations. This configuration enables deterministic control of the bandwidth and the rejection ratio of filters for integrated photonic circuits.
© 2012 Optical Society of America
OCIS Codes
(250.5300) Optoelectronics : Photonic integrated circuits
(350.2460) Other areas of optics : Filters, interference
(160.5298) Materials : Photonic crystals
(230.7408) Optical devices : Wavelength filtering devices
ToC Category:
Optoelectronics
History
Original Manuscript: November 9, 2011
Revised Manuscript: December 29, 2011
Manuscript Accepted: December 29, 2011
Published: February 13, 2012
Citation
Serdar Kocaman, Mehmet S. Aras, Nicolae C. Panoiu, Ming Lu, and Chee Wei Wong, "On-chip optical filters with designable characteristics based on an interferometer with embedded silicon photonic structures," Opt. Lett. 37, 665-667 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-4-665
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