Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2008-09-30
2011-12-27
Park, Kinam (Department: 2828)
Optical communications
Multiplex
Wavelength division or frequency division
Reexamination Certificate
active
08086105
ABSTRACT:
Provided is a wavelength division multiplexer/demultiplexer having a flat wavelength response. In the wavelength division multiplexer/demultiplexer, a modified taper-shaped optical waveguide is interposed between an input waveguide and a first slab waveguide, such that the distribution of an optical signal input to an Arrayed Waveguide Grating (AWG) has a sinc-function shape. Thus, a flat wavelength response can be obtained in an output waveguide. In addition, the modified taper-shaped optical waveguide interposed to obtain a flat wavelength response has a small size and a simple structure, and thus can be applied to a conventional wavelength division multiplexer/demultiplexer without a design change.
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Baek Yong Soon
Han Sang Pil
Han Young Tak
Park Sang Ho
Shin Jang Uk
Electronics and Telecommunications Research Institute
Park Kinam
Rabin & Berdo P.C.
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