Abstract: Provided is an optical receiver module which includes a conversion unit which converts an input optical signal to an electrical signal, an amplification unit which amplifies the electrical signal and outputs an amplified signal, a reception unit which directly or indirectly receives the amplified signal, and an offsetting unit which offsets the electrical signal such that a difference between a center of an intensity width of the electrical signal and a center of an intensity range of a signal capable of being received by the reception unit becomes small.