Optical element using multicore optical fiber grating and method for processing optical signal using the same
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United States of America Patent
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Oct 25, 2016
Grant Date -
Oct 16, 2014
app pub date -
Sep 30, 2013
filing date -
Apr 15, 2013
priority date (Note) -
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Abstract
An optical element includes a multicore optical fiber, the multicore optical fiber including an inner core and at least one peripheral core arranged around the inner core and having an effective refractive index different from that of the inner core, and an optical fiber grating formed at the multicore optical fiber to cause an optical signal to be coupled between different cores among the inner core and the at least one peripheral core. The optical element allows a signal of a specific wavelength to be dropped added from an optical signal. Since the optical element may be fabricated easily, designed in a small size and mass-produced reproducibly at low costs, the optical element may be advantageously utilized for an optical communication network such as a wavelength division multiplexing network, an ultra-high speed optical communication system, an optical sensor system or the like.
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