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Compact and low-power optical logic NOT gate based on photonic crystal waveguides without optical amplifiers and nonlinear materials |
Applied Optics, Vol. 51, Issue 5, pp. 680-685 (2012)
http://dx.doi.org/10.1364/AO.51.000680
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Abstract
An optical logic NOT gate (OLNG) is presented based on photonic crystal (PhC) waveguides without nonlinear materials and optical amplifiers. Also, a way of determining the operating parameters is presented. It is demonstrated through finite-difference time-domain simulations that the structure presented can operate as an OLNG. The optimized contrast ratio, defined as the logic-“1” output power divided by the logic-“0” output power, is found to be 297.07 or 24.73 dB. The size of the OLNG can be as small as
© 2012 Optical Society of America
OCIS Codes
(130.3750) Integrated optics : Optical logic devices
(200.4660) Optics in computing : Optical logic
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(230.5298) Optical devices : Photonic crystals
(230.3750) Optical devices : Optical logic devices
(250.3750) Optoelectronics : Optical logic devices
ToC Category:
Optics in Computing
History
Original Manuscript: October 17, 2011
Manuscript Accepted: December 14, 2011
Published: February 10, 2012
Citation
Chih Jung Wu, Chung Ping Liu, and Zhengbiao Ouyang, "Compact and low-power optical logic NOT gate based on photonic crystal waveguides without optical amplifiers and nonlinear materials," Appl. Opt. 51, 680-685 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-5-680
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