Slow Light Waveguide with Low Group-Velocity Dispersion and Low Loss in 2-D Photonic Crystal

2011 ◽  
Vol 31 (1) ◽  
pp. 0113001
Author(s):  
张栋 Zhang DongZhao ◽  
赵建林 JianlinLü ◽  
吕淑媛 Shuyuan
Keyword(s):  
Photonic Crystal ◽  
Group Velocity ◽  
Slow Light ◽  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Low Loss ◽  
Light Waveguide

Dispersionless one-way slow wave with large delay bandwidth product at the edge of gyromagnetic photonic crystal

2020 ◽  
Vol 34 (10) ◽  
pp. 2050086
Author(s):  
Ye Liu ◽  
Chun Jiang
Keyword(s):  
Photonic Crystal ◽  
Group Velocity ◽  
Communication Systems ◽  
Slow Light ◽  
Weak Interactions ◽  
Group Velocity Dispersion ◽  
Edge State ◽  
Group Index ◽  
Light Waveguide ◽  
Modal Field

We theoretically, demonstrate a high delay bandwidth product (DBP) and zero group velocity dispersion (GVD) in a two-dimensional one-way slow light waveguide. The waveguide consists of gyromagnetic photonic crystal (GMPC) and a cladding formed by silicon photonic crystal. At the edge of the band, weak interactions (“semi-anticrossing”) between the chiral edge state (CES) mode and the mode localized at the surface of cladding are observed. The group velocity of CES wave can be tuned by adjusting the modal field distribution. As a result, an extraordinarily large value of normalized DBP of 0.63 with a group index of 10.32 and a bandwidth ranging from [Formula: see text] to [Formula: see text] is obtained. This result may contribute to one-way slow light applications in information communication systems.

Temperature independence of birefringence and group velocity dispersion in photonic crystal fibres

2004 ◽  
Vol 40 (21) ◽  
pp. 1327 ◽  
Author(s):  
A. Ortigosa-Blanch ◽  
A. Díez ◽  
M. Delgado-Pinar ◽  
J.L. Cruz ◽  
M.V. Andrés
Keyword(s):  
Photonic Crystal ◽  
Group Velocity ◽  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Photonic Crystal Fibres
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