Abstract: An optical element (12) fixation structure, comprising: a module housing (10), a fixation body (111), a first fixation unit (112), a second fixation unit (113), a third fixation unit (114), and an elastic fixation unit (115), wherein the first fixation unit (112) is used for fixing a first end (131) of an optical fiber connector and a first end (121) of an optical element to a first end (1111) of the fixation body in a snap-fit manner, the second fixation unit (113) is used for fixing a second end (132) of the fiber optic connector and a second end (122) of the optical element to a second end (1112) of the fixation body in an attaching manner, and the third fixation unit (114) is used for fixing side edges of the optical element (12) to both sides of the fixation body (111).

Abstract: An optical port assembly and optical module. The optical port assembly comprises a connector connected with an optical fiber, an adaptor having an accommodation cavity, and a shield extending into the accommodation cavity to be fixed. The shield has a hollow matching cavity, into which the adaptor extends to fixedly connect with the adaptor and the shield. The shield is wrapped on the adaptor to define the relative position between the shield and the adaptor, thereby defining the relative position between the shield and optical fiber then defining the position of an opening on the shield for allowing the optical fiber to pass through. The relative position between the opening and optical fiber is fixed, whereby the size of the opening may be set to be approximately the same as that of the cross-section of the optical fiber to minimize of the opening and reduce the electromagnetic leakage thereat.