OPTICAL FIBER ADAPTER

An optical fiber adapter, relating to the field of optical communication and comprising: a housing (2) provided with a chamber (21) which comprises a first chamber (221) and a second chamber (222) being in communication with each other and being respectively in communication with two opposite ends of the housing (2); a retaining member (4), which is integrally formed with the housing (2) and is provided within the first chamber (221), wherein the retaining member (4) is enclosed to form an receiving cavity (41) having a first opening (421) located at one end, a second opening (422) located at the other end, and a third opening (43) extending along a length direction of the retaining member (4); a retaining cover plate (5), which is used for detachably connecting to the retaining member (4) to seal the third opening (43); and a ceramic sleeve (3), which is provided within the receiving cavity (41) and is adjacent to the retaining cover plate (5), wherein the ceramic sleeve (3) has a third chamber (33) in communication with the first opening (421) and the second opening (422), and the ceramic sleeve (3) is limited within the receiving cavity (41). The retaining member (4) is an integrated structure, which improves the collimation performance of the optical fiber adapter.