Monolithically integrated photonic-crystal devices with photodiodes

In this paper, we demonstrate the monolithic integration of a conventional waveguide, a photonic crystal demultiplexer, a photonic crystal taper coupler, photonic crystal waveguides, and photodiodes in InGaAsP-based material to form a planar nano-optics system. Photonic crystal demultiplexers consis...

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Bibliographic Details
Published in:Optics communications 2011-09, Vol.284 (19), p.4749-4751
Main Authors: Chiu, W.Y., Wu, Y.S., Chan, Y.J., Wang, T.D., Hou, C.H., Chien, H.T., Chen, Chii-Chang
Format: Article
Language:English
Subjects:
Demultiplexers
E-beam lithography
Finite difference method
Lithography
Nano-optics
Photodiodes
Photolithography
Photonic crystal device
Photonic crystals
Waveguides
Wavelength division multiplexer
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Summary:In this paper, we demonstrate the monolithic integration of a conventional waveguide, a photonic crystal demultiplexer, a photonic crystal taper coupler, photonic crystal waveguides, and photodiodes in InGaAsP-based material to form a planar nano-optics system. Photonic crystal demultiplexers consist of hexagonally arranged air holes. Finite-difference time-domain method is implemented to investigate the performance of the demultiplexer. The system is fabricated using e-beam lithography and conventional photolithography. The input light at wavelengths of 1530 and 1550 nm can be separated using the demultiplexing system. These can then be detected by photodiodes that exhibit a wide-bandwidth performance of 22 GHz.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2011.04.002