An optical transceiver including an optical transmitter and an optical receiver for performing a bi-directional communication over a single optical transmission fiber is provided. The optical transmitter includes a laser diode, a main body in which a receptacle part corresponding to an optical connector is formed, the optical connector to which a first optical fiber is coupled using a first supporting member, a second supporting member for supporting a portion coupled between the receptacle part and the optical connector, a plane-spring part provided in at least one of the main body and the optical connector. The optical connector has been coupled to the receptacle part. The plane-spring part is configured to provide an elasticity in a first direction to prevent an additional coupling toward the main body, the first direction is opposite toward the main body. The first optical fiber is connected to the optical receiver.