Optical coupling device

专利名称：Optical coupling device发明人：Oyamada, Kimiyuki,Utsumi, Yozo申请号：EP86101713申请日：19860211公开号：EP01921A3公开日：19871021

摘要：An output light beam from a semiconductor laser is converged by a lens systemor a fine optical fiber with a small core diameter. The converged light beam is incidentupon a part of the light receiving end face of a tapered optical fiber which is greater inarea than the other end face thereof which is connected to one end of an optical fiber.The reflected light beam in the multi-mode optical fiber because of discontinuousportion is substantially prevented from returning to the semiconductor laser, so that theadverse effects on the semiconductor laser by the reflected beam can be minimized.

申请人：NIPPON HOSO KYOKAI

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