PHOTONIC-CRYSTAL OPTICAL FIBER COUPLER AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A photonic-crystal optical fiber coupler and a method for manufacturing the same are provided to have a light distribution or a wavelength divisional function of a conventional single mode optical fiber coupler as well as to divide the optical signal into at least two optical fiber with a constant ratio. CONSTITUTION: A photonic-crystal optical fiber coupler includes at least two photonic-crystal optical fibers(10,20) and at least one coupling region(30). Each of the photonic-crystal optical fibers(10,20) includes a core part and a clad part provided with a plurality of holes with encompassing the core part. And, the coupling region(30) is formed along the longitudinal direction of the photonic-crystal optical fibers(10,20).