Manufacturing device for fusion type optical coupler

Abstract

Abstract PURPOSE:To easily obtain the optical coupler with small light loss by clamping a bare optical fiber part where the coatings of optical fiber cores are removed in the groove of V-groove blocks in contact. CONSTITUTION:A hard clamp 6 and the V-groove blocks 1 and 1' are arranged on two racks 5 and 5', both end sides of the bare optical fiber 3 where the coatings of the center parts of two optical fiber cores 2 are removed are clamped in the groove parts 7 of the V-groove blocks 1 and 1' in parallel and in contact, and they are extended between the two racks 5 and 5' to contact each other excellently. The specific section of the two contacting bare optical fibers 3 is fused with a burner 11 and a rack 5 is moved back gradually by a specific distance immediately after the fusing process to draw the fused parts, thereby reducing their diameters. Consequently, the optical coupler with small light loss is easily obtained.

Inventors

• 👤 Toshihiro Ochiai
• 👤 Koichi Hayakawa
• 👤 Hisaharu Yanagawa

Bibliographic Details