 技術摘要 / Our Technology： |
本發明提供一種多工(Multiplexing簡稱Mux)與解多工(Demultiplexing簡稱Demux)的光學次模組裝置；在發射端(TOSA，Transmitter of Optical Subassembly)部分，四顆不同波長的雷射光源分別經由透鏡(球面鏡、非球面鏡)導成近似平行光，並經過薄膜濾波片的耦光，最後再經過透鏡(球面鏡、非球面鏡)耦合到光纖裡；在接收端(ROSA，Receiver of Optical Subassembly)的部分，光纖導出的光經由透鏡(球面鏡、非球面鏡)導成近似平行光，再經過薄膜濾波片的分光，由薄膜濾波片所分出的光訊號分別經過透鏡(球面鏡、非球面鏡)聚光到光檢測器(Photodetector)。本發明並具有一被動對位(passive alignment)與一主動對位(active alignment)的設計，以使整個光學次模組的光耦合效率最佳化。
The present invention relates to a MUX and DMUX optical sub-module, comprising an emitting module or receiving module or both. The emitting module has four laser sources, each emitting optical signals with different wavelengths, which may, after collimation, be reflected by corresponding reflectors to the same plane so as to be coupled by a thin film filter and emitted from an optical fiber after being coupled by a lens; the receiving module comprises a thin film filter for splitting the incident optical signal into individual optical signal which may be reflected to a optical sensing element by four reflectors so as to be converted into an electric signal; the reflector is adjusted bi-axially so as to refine its slanted angle, thus providing the function of active alignment; on the main body of the emitting module or receiving module disposed a positioning slot for accommodating the laser source or the optical sensing element, wherein the depth of the positioning slot is set in accordance with the wavelength of relevant optical signal so as to provide a passive alignment function; thus, the optical sub-module may optimize the optical coupling efficiency by the active or passive alignment.
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| 專利簡述 / Intellectual Properties： |
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聯繫方式 / Contact： |
| 臺大產學合作總中心 / Center of Industry-Academia Collaboration, NTU |
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| Email：ordiac@ntu.edu.tw |
電話/Tel：02-3366-9945 |
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專利行銷平台