Optical connector

1. An optical connector comprising:

an optical fiber;

a ferrule provided at an end of the optical fiber, through which a core wire of the optical fiber is inserted;

a housing configured to accommodate the ferrule;

a fiber end face provided at an end of the core wire of the optical fiber, located inside the ferrule from an end face of the ferrule in response to the core wire being inserted through the ferrule; and

a welded portion configured to fix the core wire of the optical fiber to the ferrule and to fix a position of the fiber end face by welding such that the welded portion is comprised by melting at least one of a material of the ferrule and a material of the core wire in an area between an outer periphery of the core wire and an inner periphery of the ferrule, wherein

the welded portion is configured to fix the core wire of the optical fiber and the ferrule to each other.

2. The optical connector according to claim 1 , wherein the welding comprises laser welding and the welded portion is configured to fix the core wire of the optical fiber and the ferrule to each other by the laser welding.

3. The optical connector according to claim 1 , further comprising a split sleeve into which the ferrule is at least partially inserted, wherein the welded portion is provided in a range of the split sleeve in a longitudinal direction of the optical connector into which the ferrule is at least partially inserted.

4. The optical connector according to claim 1 , further comprising a crimp portion which abuts to the core wire of the optical fiber by crimping the outer periphery of the ferrule and is provided in at least one position in a length direction of the core wire and the ferrule.