OPTICAL MODE CONVERTER WITH MAXIMIZED MANUFACTURING TOLERANCE OF OPTICAL WAVEGUIDE ELEMENT

摘要

PURPOSE: An optical mode converter is provided to improve reproduction capability and reliability of the optical waveguide element by maximizing manufacturing tolerance of the optical waveguide element. CONSTITUTION: A side of an optical mode converter is coupled with an optical waveguide(10). The other side of the optical mode converter is coupled with an optical fiber(20). A plurality of split waveguides(30) are divided into the same width and same length to form a divided taper region(Ltaper). The taper region is coupled with the optical waveguide. An I/O section is adjacent to the taper region. A side of the I/O section is connected to a core of the optical fiber.