應用平行光互連技術於40Gb/s的光收發次模組之封裝技術

隨著科技不斷的創新與進步，影像與資料傳輸需求大幅度的提昇，使用銅纜線做為媒介的傳輸頻寬已經不敷使用，傳輸的速度與方式將進入全新的局面。光纖傳輸終將取代銅電纜線成為新一代的傳輸方式。本論文中，我們參考許多被動式耦光之平行光互連技術後，並考量其優缺點後歸納出一種結構簡單、本較低廉且易於生產的模式來達成40Gb/s平行光互連收發次模組之封裝並實際應用於40Gb/s QSFP(Quad Small Form-factor Pluggable)之光收發模組上，我們利用一陶瓷基板(LTCC)做為基底，在其上放置4 x10 Gb/s的VCSEL 陣列與4 x10 Gb/s 的PD陣列等元件，並利用被動式耦光方式將具有45°反射斜面與12顆微透鏡之透鏡陣列將光導引至多模光纖。經過多次的實驗與改善，VCSEL的光功率由-18.62dBm進步到-0.42dBm，光耦合效率也從15.26%進步到45.05%，PD的靈敏度也有-11dBm~-12dBm左右。

關鍵字

平行光互連技術；光收發次模組

並列摘要

With continuously innovation and progress technology, the requirements of image and data transfer increase significantly. The transmission bandwidth which uses traditional wire and cable as a medium has been insufficient. The transmission speed and mode will turn towards a new situation. Optical fiber will eventually replace traditional ways and become the a whole new communication methods. In this paper, we refer to much passive optical interconnection alignment technology in parallel light. To consider all the benefits and disadvantages, we develop a technique on the 40Gb/s parallel optical sub-assembly which have a simple structure, less cost and easily manufactured.These techniques have also applied on the 40Gb/s QSFP (Quad Small Form-factor Pluggable) transceiver module. The technique basically use a LTCC (Low-Temperature Cofired Ceramics) to be the substrate and place a 4x10Gb/s VCSEL and PD array devices on it. One 45° reflection inclined plane and 12 micro-lens are mounted on the devices to guided the light into the multi-mode fiber with passive optical interconnection alignment. After many experiments and improvements, the optical power of the VCSEL are increased from -18.62 to -0.42 dBm and the C.E.(Coupling Efficiency) are also improved from 15.26% to 45.05%. The sensitivity of the PD can be measured in -11 to -12 dBm.

並列關鍵字

QSFP ； VCSEL array ； Lens array

參考文獻

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[1] 網路資料on line resources：全球光通訊市場與台灣產業。取自http://www.itis.org.tw/rptDetailFreeEPaper.screen?loginState=1&industry=1&ctgy=5&rptidno=633128152

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應用平行光互連技術於40Gb/s的光收發次模組之封裝技術

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