Miniaturized single-fiber double-lens passive optical module

The invention discloses a miniaturized single-fiber double-lens passive optical module. The module comprises a collimator A, a collimator B, a collimator C, a collimator D and a collimator E, whereinthe collimator A and a prism are located on a same ray A; the prism, a first optical filter, an eighth optical filter and the collimator B are located on a same ray B; the first optical filter, a second light filter, a third optical filter and the collimator C are located on a same ray C; the second optical filter, a fourth optical filter, a fifth optical filter and the collimator D are located ona same ray D; the fourth optical filter, a sixth optical filter, a seventh optical filter and the collimator E are located on a same ray E; the sixth optical filter, the first optical filter L and areflector A are located on a same ray F. According to the module, a free space coupling technology and a thin film interference principle are adopted, the positions of the collimators are determined through accurate incidence a