SLOW LIGHT AND DISPERSION COMPENSATION BY CASCADING TWO PHOTONIC CRYSTAL WAVEGUIDES
2014 ◽
Vol 28
(03)
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pp. 1450025
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In this paper, we propose a structure with cascaded two photonic crystal line-defect waveguides to reduce group velocity dispersion (GVD) of slow light. The width of the line-defect waveguides is tuned to obtain the two matched dispersion relations, where one of the dispersion relations has a maximum point with zero group velocity and large positive GVD; the other has a minimum point with zero group velocity and large negative GVD. The waveguides have ultra slow light with the group velocity 0.0012c. Finite-difference time-domain simulation demonstrates that the spreading of the slow light pulse in the first waveguide can be recovered by the dispersion compensation of the second waveguide with positive GVD.
2020 ◽
Vol 34
(10)
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pp. 2050086
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2009 ◽
Vol 21
(20)
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pp. 1571-1573
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2021 ◽
Vol 2109
(1)
◽
pp. 012008
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2008 ◽
Vol 44
(8)
◽
pp. 763-769
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Keyword(s):
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