| 摘要 |
PURPOSE: A bi-directional optical module having optical signal transmission and receiving function through a pigtail fiber is provided to reduce a cost of an optical module, to increase productivity of the module, and also to provide an appropriate performance in a high speed optical signal transmission and receiving. CONSTITUTION: The bi-directional optical module includes a light source-light filter-lens assembly structure(31), and a light source part block(21) and a light receiving part block(22) and a lens and an optical filter in a 8 pin mini-DIL(Dual In Line) package. The light source-light filter-lens assembly structure has two pillars and a lens assembly hole. The light source part block has a number of impedance-matched strip lines(23) for electrical connection between optical devices and a package pin. The light filter is a dichroic filter and is assembled in parallel with a side of the structure. The light receiving part block has a photo diode and a preamplifier on a silicon or ceramic substrate, and has a number of impedance-matched strip lines.
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