首页|Compact photonic crystal multichannel drop filter for CWDM systems
Compact photonic crystal multichannel drop filter for CWDM systems
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NSTL
Elsevier
A novel photonic crystal channel drop filter (PCCDF) is proposed to drop four coarse wavelength division multiplexing (CWDM) channels at 1490 nm, 1510 nm, 1530 nm and 1550 nm. A special coupled dual-loop design was used for multichannel forward/backward dropping for the first time. Due to the reduced number of the dropping resonators with this design, the proposed multichannel PCCDF has a very compact size (338 mu m(2)). High transmission efficiencies at the four ITU wavelengths (87.87%, 93.99%, 85.40% and 84.24%) can be obtained simultaneously. Furthermore, the same dimension parameters (lattice constant and rod radius) of the dual-loop resonators are helpful for easy fabrication. The proposed device could be used in future photonic integrated circuit-based CWDM communication systems.
Channel drop filterRing resonatorPhotonic crystalPhotonic integrated circuitCoarse wavelength division multiplexing
Zhang, Juan、Zhang, Mengxiang、Liu, Hao、Ding, Yipeng、Wang, Yang
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Shanghai Univ, Sch Commun & Informat Engn, Joint Int Res Lab Specialty Fiber Opt & Adv Commu, Key Lab Specialty Fiber Opt & Opt Access Networks, Shanghai 200444, Peoples R China
Cent S Univ, Sch Phys Sci & Elect, Changsha 410012, Hunan, Peoples R China
Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
NSTL
Elsevier
