Optical assembly with OTDR function

Provided by the utility model is an optical assembly with an OTDR function. The optical assembly comprises a first laser emitter for emitting a first optical signal with a wavelength of lambda1, a second laser emitter for emitting a third optical signal with a wavelength of lambda3, a first laser receiver for receiving a second optical signal with a wavelength of lambda2 from a fiber, a second laser receiver for receiving a fourth optical signal with a wavelength of lambda4 from the fiber, and a first absorption sheet for absorbing the third signal transmitted through a second optical filter and the third optical signal reflected through the end surface of a connector provided with the fiber. According to the optical assembly, since the first absorption sheet is arranged between the second optical filter and the end surface of the connector provided with the fiber, noise light which arrives at the second laser receiver through diffuse reflection is greatly reduced, and the crosstalk caused to the second laser