Optical transmitting assembly, optical transmitting and receiving assembly, optical module and communication terminal

The embodiment of the utility model provides an optical transmitting assembly, an optical transmitting and receiving assembly, an optical module and a communication terminal, relates to the technical field of optical communication network equipment, and aims to solve the problems that a laser, a coupling lens and a single-mode optical fiber in the optical transmitting assembly are small in coupling tolerance and large in coupling difficulty. The light emitting assembly comprises a laser, a micro lens and a coupling lens. The laser comprises a laser end face and a light emitting part located in the laser end face, the laser is used for generating a first laser beam, and the first laser beam is emitted through the light emitting part. The micro lens is arranged on the end face of the laser and covers the light emitting part. The micro lens is used for shaping the first laser beam into a second laser beam and projecting the second laser beam to the coupling lens; the spot size of the second laser beam at the microlens is 5 microns to 30 microns. The light emitting assembly can be applied to an FTTR access network.