| 摘要 |
<p>PURPOSE:To eliminate the need of a refractive index matching agent and to improve the attaching detaching operability, and also, to obtain a connection characteristic of a low reflection and a low loss by bringing each optical fiber connecting end face into contact obliquely and directly with each other at the time of connecting each plug. CONSTITUTION:A connecting end face 16 of a plastic formed plug 14 becomes the inclined surface incled at a larger angle - or + than a total reflection critical angle of a propagation light in an optical fiber from the face being orthogonal to an axis of the optical fiber 2. The optical fiber 2 is fixed by having a small projection amount DELTAL in parallel to the connecting end face 16 on which its connecting end face is inclined. Connection of the plugs 14 and 14' is connected by inserting a pair of guide pins 6 into a pin insertion hole 15 of one plug 14', inserting the plugs 14, 14' from both sides of a guide sleeve 17 and butting them, fitting in a crank spring 7 and pressurizing it in the axial direction. In this case, the inside diameter dimension of the guide sleeve 17 is a little larger than the outside diameter dimension of the plug terminal (tip) part.</p> |
