Optical fiber fusion splicer and optical fiber fusion splicing apparatus provided with same

摘要

An optical fiber fusion splicer (1) includes: a pair of right and left V-grooved stands (2A, 2B) having V-grooves (21) for butting tips of a pair of optical fibers each other while positioning the tips of the pair of optical fibers; a pair of elastic members (3A, 3B) respectively supporting the pair of V-grooved stands and formed into an elastically deformable plate; a fixed base (4) on which the pair of elastic members is mounted, whereby the pair of V-grooved stands is fixed thereto through the pair of elastic members, and which is long in a right-left direction; and a pair of micrometers (5A, 5B) aligning the tips of the pair of optical fibers by finely moving the pair of V-grooved stands with respect to each other while elastically deforming the pair of elastic members by pressing the pair of V-grooved stands from forward and backward directions; wherein the pair of elastic members is provided so as to extend upward from fixing base portions (41) of the fixed base while being respectively inclined in the forward and backward directions, and is disposed at positions shifted in the right-left direction of the fixed base; the pair of V-grooved stands is disposed such that the V-grooves provided therein communicate with each other; and when viewed from the right and left end portions of the fixed base, a distance L1 between first end portions of the pair of elastic members fixed to the fixing base portions is narrower than a distance L2 between second end portions of the pair of elastic members on which the pair of V-grooved stands is mounted.