Optical time domain reflector structure and the optical assembly thereof

An optical assembly, comprising:

• an optical time domain reflector structure, comprising:
• a carrier, having a first end and a second end, the carrier comprises a restricting part and a fixing part, the restricting part is disposed between the first end and the second end, and the fixing part is disposed on the first end;
• and
• a reflection filter, disposed on the fixing part, and connected to the first end, the reflection filter comprises a first reflection surface and a second reflection surface, the first reflection surface and the second reflection surface are respectively located on opposite sides of the reflection filter, the first and the second reflection surface have a first radius of curvature and a second radius of curvature respectively, and the first radius of curvature is not bigger than the second radius of curvature, the reflection filter axially spaced apart from the restricting part;
• a light guiding module, connected to the optical time domain reflector structure, and disposed in the carrier through the second end;
• and
• an optical transceiver sub-module, connected to the light guiding module, and the optical time domain reflector structure is disposed in the optical transceiver sub-module;
• wherein, when a plurality of optical signals is emitted from the light guide module, parts of the optical signals enter the optical time domain reflector structure and reflected back to the light guiding module by the reflection filter.