1273299 九、發明說明： 【發明所屬之技術領域】 本發明係有關於光收發模組，特別是有關於光收發模 組之光學次模組的改良，可提供一種體積小、對位精度高、 光耦合效率佳的光學次模組。 【先前技術】 從長程通訊至光纖到家的發展過程中，光收發模組 • (〇Ptical Transceive〇 —直扮演著重要的角色。大致上， 光收發模組包含驅動電路、電性次模組裝（esa，Electric Subassembly )、光學次模組（0SA，0ptical Subassembly)。 當傳輸速度到達lOGb/s或40Gb/s，或更高的傳輸速度時， ' 僅從收發模組之電路系統的工作頻率去做提升，其發展性1273299 IX. Description of the Invention: [Technical Field] The present invention relates to an optical transceiver module, and more particularly to an optical sub-module for an optical transceiver module, which can provide a small size and high alignment accuracy. Optical sub-module with good optical coupling efficiency. [Prior Art] From the long-range communication to the development of fiber-to-the-home, the optical transceiver module (〇Ptical Transceive〇) plays an important role. In general, the optical transceiver module includes the drive circuit and the electrical sub-module assembly. (esa,Electric Subassembly), optical sub-module (0SA, 0ptical Subassembly). When the transmission speed reaches lOGb/s or 40Gb/s, or higher transmission speed, 'only the operating frequency of the circuit system from the transceiver module To improve, its development
- 將受限於南頻電路的昂貴價格，所以才衍生出WDM (Wavelength-Division Multiplexing)，即所謂的分波多工 的概念。 鲁 所明的「分波多工」’即是在光收發模組裡透過「多工」 及「解多工」的方式將多個波長的光訊號整合到一條光纖 w 中，以提高其頻寬。分波多工的技術可依波長間距（Αλ) — 的大小而分為高密度分波多工（DWDM，Dense- Will be limited by the expensive price of the south frequency circuit, so WDM (Wavelength-Division Multiplexing), the so-called concept of split-wave multiplexing, is derived. Lu Zhiming's "split-wave multiplexing" is to integrate multiple wavelengths of optical signals into a single fiber w in an optical transceiver module through "multiplexing" and "de-multiplexing" to increase its bandwidth. . The technique of split-wave multiplexing can be divided into high-density split-wave multiplexing (DWDM, Dense) according to the wavelength spacing (Αλ).
Wavelength-Division Multiplexing )，以及粗分波多工 (CWDM，Coarse Wavelength-Division Multiplexing)。 高密度分波多工（DWDM)的頻寬間距在〇.8nm至 1.6nm的範圍，可以在單位頻寬内具有極高的光訊號密 1273299 度，一般是使用在C-band (波長在1525nm至1565nm)， 亦即為長距離的光纖骨幹網路波段。由於頻道間距甚窄， ^此分光_光模組的技術非常雜，而且在做為光源的 雷射方面，必須要制昂貴的致冷ϋ ( TEC，ThemoelectdcWavelength-Division Multiplexing), and Coarse Wavelength-Division Multiplexing (CWDM). High-density wavelength division multiplexing (DWDM) has a bandwidth of 〇.8nm to 1.6nm and can have a very high optical signal density of 1273299 degrees per unit bandwidth, which is generally used in C-band (wavelength at 1525nm). 1565nm), which is the long-distance fiber backbone network band. Due to the narrow channel spacing, the technique of this spectro-optical module is very complicated, and in the laser as a light source, expensive cooling fins must be made (TEC, Thermodecectc
Cooler)來控制其溫度’以避免雷射因溫度變化而產生波 長飄私。因此其成本與能量的損耗也相對的提高。 =分波多工的技術，同樣也是將多個波長的光訊號多 耦α在條光纖上，但是是使用較大的波長間距 曰=m) ’目此崎射端而言，其雷射統並不需要使用 冷11來控制溫度變化，而僅需以適當的散熱設計 減低溫度所造成過大的波長飄移量即可。 另外’以達到1GGb/s傳輸頻寬的目的而言，cw疆的 射t只f要使職轉輪速度較慢、較敎、較便宜的雷 射，p輪速度為3.125Gb/S或是2.5Gb/S等較慢速的雷 的傳顺需的效果。同樣地，如果為了達到40Gb/s 果 H僅f使帛四顆脇b/s的雷魏能有此效 較低速的雷之傳輸頻寬，依此概念，僅需數顆 因為雷射的傳輸速需之效果。所以，以接收瑞而言， 測面積，㈣，減又對應之光二極體具有較大的感 的效果。整體誤差的容忍度與搞合效率上具有正面 採用較穩定較低逮的雷射 及驅動電路的設計上較容易極體’在電性次模組 模組的部份，因Ur 較困難的部分是光學次 ”、、屑要透過良好的光路設計將數個波長 1273299 (T0SA部分)，或是將光纖射 ==至到各光檢測器中(R0SA部分)，以使整 i k ’並使體積最小化，以符合職（祕source greement)所做的規格，或翻模組、職的目的。 由於必須要將多個波長的光訊號搞合至—條光纖上， 因此各波長光訊號的轉合效率對於訊上損 是相當重要的因素。改善輕合效率的方法之 =件組裝上的財，而⑽的設計巾通常是採用所謂的 被動對位（passive Mi ) 精度，Λ 姑轉的組裝 的太Γ 學次模組（例如歧發模組） 、-’預先_及加卫完餘裝的 後’再將光學元件直接固定於該位置。此種作法 於先學讀，例如光收發模組中所使用到的透鏡、薄 相對於光路徑的精度會受到機械加工： 彳i 產生微小的誤差。而縣對位在元件 組m料具有難的空間，因此無法修正轉差。 =監於此，在本案發明人先前提出的申請的發明專利 置明即I，·號’名稱為「光收發11之光學次模組裝 置」’即揭露一種光聲+ 甘rb ϊ>内 裡尤予_人杈組，其令先學元件的對位， 位為之之外，另以所謂的「主動對位:、的 進—步提供對位精度。所謂的「主動對位」係指， 光學兀件除了 _騎位枝在辟讀 =進，至光學之模組上之後，再二 凋正以進一步提升對位的精度。 1273299 然而在該先前發明申請案中，由於光源產生器 射二極體絲二讀侧設置在—基座上，再結合田 發模組的主體上，每-辆均需要—個基座，對= 要以多個錢來提供不同波長光訊號的分波多卫式光收ς 模組而言，會因多個基座同時結合至主體上之故，二 個模組體積變大，對於小型化而言是相當不利的。- 再者，由於在該先前的申請案中所採用的主動對位係 利用光學元件（如光源產生器）魅體上安賴孔間的餘 隙來提供鮮元件對位上的調整，目此在調整完畢後，仍 需1他方式將二者加關定住，其製程相當 製造時間及成本的增加。 因此’實有必須開發-種紐發模組的 以克服習用技藝上的缺點。 $、 【發明内容】 本發明的目的在於提供—種光收發模組主 動對位及涵對位的魏，故除 = 器在對位上精度不佳的缺點，並可因=并 率 ri易再::的在於提供-種光收發模組，其… ^易的方式如絲雜，因之㈣化製程，提升製遠典 1273299 基於此’本發明係有關於一種光收發模組，具有多工 及解夕工的光學次模組，包含有發射模組或接收模，或二 者。，發射模組包含有四個雷射光源，分別發射出不同波長 的光訊说，經準直處理後，經由個自之反射鏡加以反射至 同平面上而由薄膜濾、光片加以麵光，再由透鏡輕合至光 纖内而毛射出去。接收模組則包含有薄膜渡光片，將入射 的光訊5虎加以分光成個自之光訊號，這些光訊號經由四個 反射鏡加以反射至光感測元件上，以轉換成電信號。該反 射鏡係進行雙軸式調整，以調整其傾斜角度，以提供主動 $位的魏。另外在發射模組或接收模組的本體上，設有 f位槽，用以容置雷射光誠光感測元件，該等定位槽的 深度係針對相關光訊號的波長設定的，以達成被動對位的 功月。藉此，此光學次模組可以藉由主動及被動對位而使 光輕合效率最佳化。 【實施方式】 以下配合圖式對針對本發明的較佳實施例來說明本發 明的結構及功能。本發明的光學次模組裝置可以應用在光 發射模組，或是光接收模組上，或是是應用在同時兼具有 光發射Μ組及光接收模組的光學次模組上。以下將先針對 光發射模組的實施例來加以說明。 首先參閱第一圖，其中顯示出本發明之光學次模組裝 組應用在光發射模組上的分解圖，其中該光發射模組係以 參考編號100加以標示。此光發射模組100包含有一本體 1273299 1〇2’具有上表面104及下表面1〇6。—光 結合至本體102之下表面ι〇6上。 矛置㈨ 請同時參閱第二圖及第三圖，其中分㈣示出本體 102自上方及下方硯看的外觀圖，在圖示的實施例中 體104是一略呈扁平狀的立方體，其上表面1〇4及下表面 106是大致上互相平行，而其間則設有多個貫穿孔⑽，在 本實施例中為四個，但是亦可設有其他數目的貫穿孔 108 ’例如人個。每-貫穿孔⑽均係大致上垂直於上表面 1〇4及下表面施’並自上表面撕延伸至下表面施^形 成完全貫穿過本體1〇2的通道。這些通道係做為光束通過 之通道，這將在下文再進一步加以說明。 在下表面106上設有沿其周邊延伸的環周突緣η〇， 此環周突緣110與下表面106共同形成一個可以容置光源 產生瑕罝300的容置空間。下表面1〇6在環周突緣ιι〇圍 繞的區域内，對應於每一貫穿孔1〇8，設有一内凹定位槽 112。此疋位槽112是形成在下表面1Q6上而未貫通至上表 面104。每一貫穿孔108均是自定位槽112的底部貫穿至 上表面104。由於在此實施例中，在本體1〇2上設有四個 貫穿108，因此下表面1〇6上亦設有四個定位槽112。 光源產生裝置300包含有一基座302，係由一片設有 控制電路的電路板所構成，此基座3〇2的形狀及大小係相 當於本體102之下表面1〇6上由環周突緣11〇所構成的容 置空間’因此可以緊密地容置於該容置空間内，並可以適 备的方式加以固定在該容置空間内。例如說，在此實施例 1273299 中，在裱周突緣110之一側壁的内側表面上設有槽孔114， 而在基座302之一側則突設—卡榫3〇4，可以壓配或緊密 配合的方式***至槽孔114内而將基座3〇2固定在本體 102之下表面1〇6上。或者亦可採用其他的結合方式，例 如以黏著劑將基座302固定在環周突緣11〇内，此係具有 一般技藝者所知悉的一般手法，故不再多加說明。八 光源產生裝置300上針對本體1〇2的每一定位槽 112’設有一光源產生器3〇6,其形狀及大小係可***至定 位槽112 Θ。每一光源產生器3〇6均設有一光源3〇8，例 如雷射二極體’可以產生雷射光束。雷射二極體期的位 置疋對應於貫穿孔108，因此雷射二極體3〇8發射出的雷 射光束可沿著貫穿孔⑽照射至本體搬的上表面廳。田 在此實施例中，在每-貫穿孔1〇8内或其上適當位置 處設有準直I置116 ’此準直裝置116係做為雷射光束準 直之用，因此在設置上是與雷射二極體3〇8相距一段適當 的距離，以將雷射光束導成平行的光束。此準直裝置4二 可以是單-透鏡’由球面鏡或非球面鏡所構成，或是由多 個透鏡所組成的透鏡組。為方便說明起見，下文中亦會以 「透鏡」-詞來代表此準直裝置1這些透鏡的表二可 ^依據不同的雷射波長而鍍上具波長選擇性之抗反射光學 薄膜層’以減少反射損失。此亦為光學技術—般所熟知者^ 故不再詳述。 構成準直裝置116的透鏡或透鏡組可以採用受光固化 之UV (紫外線）膠、熱固化膠、或其他具黏著性的材料 11 1273299 加以固定至本體102的貫穿孔1〇8内或其上，或者是採用 玻璃對至屬=燒結技術（glass t〇 metal Seals)予以燒結固 =另-種可能是，在本體是由塑膠材料以射出成型法製 以日守’準直裝置116的透鏡或透鏡組可以與本體-體模製 在一起。 、衣 同時亦請參閱第四圖及第五圖，在本體1〇2的上表面 104上’對應於每一準直裝置116，設有一反魏118。此 反賴118具有相對於貫穿孔1〇8之轴心線適當的傾斜角 # 度，可將通過準直裝置116的平行雷射光束導至特定的方 向上，此將於下文中再進一步說明。根據本發明，每一反 射鏡118均是由一具有主動對位功能的調整器12〇以可調 整方=的方式加以固定在本體1〇2的上表面1〇4上。在所 不的貫施例巾’調整器12〇包含有第—構件（錯直調整構 - 件）122及第二構件（水平調整構件）124，而反射鏡ιι8 則是設置在第二構件124上，其可以是第二構件整體的一 部份，或者是另外製造後再固定至第二構件上。第一和第 * 二構件122、124二者可分別繞各自之轉動軸線126、128 轉動，如第4圖中箭號A及B所示，以調整反射鏡118的 方向，進而調整反射鏡118將雷射光束反射出去的方向， 而達到主動對位的功能。 在圖示的實施例中，第一構件122具有圓柱狀的第一 樞軸130，係與轉動軸線126同心，可插置於上表面1〇4 上所設的圓形插孔132内，並可於插孔132内轉動，因此 可使凋整為120在上表面104上繞著轉動軸線126轉動。 12 1273299 在此實施例中’轉動軸線126係大致上垂直於上表面_， 因此做為錯直調整構件的第—構件122係可繞著垂直 表面104的軸線轉動。但是可以理解的，轉動軸線似並 不-定要垂直於上表面104。第—構件12〇另外具 _ 134 ’與轉動軸線128 @心，可***至設在第二齡 124内的軸孔136，而使第二構件以可繞著該第二樞轴 134 (即轉動軸線128)而相對於第—構件12()轉動。另一 種可能的方式是將軸孔設置在第—構件上，並將第二拖轴 • 設在第二構件上，如此同樣可以達到第二構件相對於第一 構件轉動的效果。 在此實施例中係’第二樞轴134是大致上平行於本體 搬的上表面顺，因此做為水平調整構件的第二構件似 係可繞著水平平行於上表面UM轉純轉的。但是可 . 以理解’第二轉動轴線128也可以不平行於上表面1〇4， 惟第二樞軸134不宜與第-樞轴13〇平行，以期能達成雙 • 轴式的調整效果。在圖示的實施例中，第-樞軸13〇的轉 動軸線126是與第二樞軸124的轉動軸線128正交。 藉由將第一構件122及第二構件124分別繞各自之轉 轴線126、128而相對於本體1〇2轉動，將可以調整反射 =118相對於本體1〇2之上表面104的位置及方向，這將 有助於主動對位的達成。這一部份將在下文中再進一步說 明。 雖然在此實施例中’調整器120可透過第一柩轴13〇 和第二樞軸134的轉動而調整反射鏡118的位置和角度， 13 1273299 但在實施上也可以僅使用單一樞軸來進行反射鏡118的調 整作業。 在實施上，第一樞軸13〇與本體之圓形插孔132， 以及第二樞軸134與第二構件122之軸孔136間，可以具 有一定的摩擦力，這可有助於第一構件12〇、第二構件 122、本體1〇2間在轉動之後的暫時性或永久性固定。因 此，在完成反射鏡118的調整作業後，若有需要，即可以 直接將調整器120的第一構件122及第二構件124進一步 固定住。例如說可以使用黏著劑將第一構件122及第二構 件124膠合在一起，並膠合至本體1〇2的上表面1〇4上， 或者也可以使用電阻焊或雷射焊接技術為之。 本體102的上表面1〇4上另外設有壁部138，其間圍 繞一空間140，具有四個内側表面，每一者上設有穿孔 142，分別對應於各反射鏡118，因此自反射鏡反射而 發射出的雷射光束可穿過該穿孔142而進入至空間14〇 内壁°卩138的前方呈開放狀而形成一通道Μ#，與該空 間140相通，且通道144的前方出口處結合一插座或連接 tm、146 了供一外部光纖（未顯不）***其内，進行光传 號的傳送及接收。插座146内設有通道透鏡148，用以將 雷射光束導入至光纖内，或自光纖内導引至該空間14〇内。 插座146可以使用光固化之UV膠、熱固化黏著劑、 或其他黏著劑加以固定至本體102上的通道144出口處， 或是以其他方式，例如雷射點焊或電阻點焊等技術，將插 座146加以固定至本體1〇2上。 14 1273299 另外’用來銜接外部光纖的插座146可以是各種型式 的光纖連接器，例如Lc型、sc型、FC型或是其他型式工。 此係熟知光軌佩之人顿祕知曉者，故在此^ 贅述。 Λ 另外在壁部138上，面對於各穿孔142處，設有— 膜濾、波片15G，其在光發射模組巾的功能在於做為反射鏡 之用。藉由各薄膜濾波片15〇的反射作用，經過穿孔 進入至空間140内的各雷射光束最級將被導引而沿著通道 144行進，通過通道透鏡148進入至插在插座146内= 纖内。 接下來配合第一圖的例子來說明本發明之光發射模組 的操作方式。當光源產生裝置3〇〇之基座3〇2上的第一個 光源產生器306發射出波長為^的第一雷射光後，此 雷射光會經由本體102上與之相對應的貫穿孔⑽内的準 直裝置116通過，形近似平行光，此平行之第一雷射光束 會由與之相_整器12G上的反射鏡118加以反射通過壁 部138上的穿孔142，進而進入至空間14〇内，並經過前 方的第一薄膜濾波片15〇加以反射與耦光，因之而與光源 產生裝置300上的苐二個光源產生器306所射出波長為人2 的雷射光相會合，其後再射向第二光源產生器遍相關的 第二薄膜濾波片150,經由該第二薄膜濾波片15〇的反射 與搞光而與第三個光源產生器3〇6所射出波長為λ3的雷射 光相會合，再射向第二薄膜慮波片15〇，經過第三薄膜淚 波片150的反射與耦光而與第四個光源產生器3〇6所射^ 15 1273299 波長為λ4的雷射光相會合。此時的光線總共含有λ1、λ2、 λ3、λ4等四個波長的光訊號，最後經過通道144與通道透 鏡148的聚光而耦合到***在插座146内的光纖裏。此種 光發射模組的光訊號耦合作業可參見前述之中華民國發明 專利申請案第93118803號，在此不再多加說明。 另外參閱第六圖，本體1〇2為單一整體的結構，由於 不同波長的雷射光束到達各個透鏡或準直裝置116的最佳 距離均不相同，所以可以透過本體1〇4的設計，在製造時 預先設定好各定位槽112的最佳化深度们、（12、d3、d4。 各定位槽112的最佳化深度會因相關的雷射波長而有所不 同，藉由事先設定好這些深度距離^、^、^、^，各光 源產生器306 (或是其上的雷射光源3〇8)至相關準直裝置 116的透鏡的距離將可事先調整至配合於各種波長，以期 能使通過準直裝置116之透鏡的雷射光導成近似平行光， 故可適用於長波長的通訊或是短波長的傳輸，應用層面極 為廣泛，即此為本發明之光收發模組的「被動對位」功能。 此外，在組裝時，透過調整器12〇的雙軸式調整功能， 可以將各反射鏡118的位置及方位（或是傾斜角度）配合 於各相關光學元件加以調整，以彌補其他元件（如透鏡、 薄膜濾波片、插座、光源產生器基座）在組裝時所產生的 誤差，進而增加整個系統的容忍度，提高良率，使整個系 統的耦合效率達到最佳化。此時為本發明光收發模組的「主 動對位」功能。 接下來配合第七圖說明本發明光收發模組應用在光接 16 1273299 收模組上的實施例。本發明的光接收模組在圖式中是以參 考編號500加以標示，與前述之光發射模組1〇〇 一樣，具 有一本體，其結構與前述光發射模組之本體相同，因此其 本體及各相關元件或組件在圖式中將以相同的參考編號加 以標不，同時也不重覆說明。此光接收模組5〇〇中係以一 光檢測裝置，其在圖中是以參考編號700加以標示，取代 前述光發射模組100中的光源產生裝置300。在此，同樣 的，光檢測裝置700亦是可以容置並固定於本體1〇2下表 面106上的容置空間内，而將光檢測裝置7〇〇結合至本體 102上’以構成本發明的光接收模組5〇〇。 光檢測裝置700包含有一基座7〇2，係由一片設有控 制電路的電路板所構成，此基座7〇2的形狀及大小係相當 於本體102之下表面106上由環周突緣n〇所構成的容I 空間’因此可以緊密地容置於該容置空間内，並可以適當 的方式加以固定在該容置空間内。例如說，在基座7〇2之 一側則突設-卡榫704，可以墨配或緊密配合的方式*** 至本體102之下表面1〇6上的環周突緣n〇内侧表面上的 槽孔114内而將基座702固定至本體1〇2之下表面1〇6上。 與光發射模組100相同的，也可以採用其他的結合方式， 例如以黏著劑將基座702固定在環周突緣11〇内。 光檢測裝置700上針對本體1〇2的每一定位槽112 , 設有-光檢測器706，可容置於定位槽112内。每一光檢 測器706均設有-光感測元件7〇8，例如光二極體，可以 谓測光訊號（如雷射光）而產生相應的電信號。光二極體 17 1273299 观的位置是對應於本體1〇2上的貫穿孔1〇8,因此可以接 收及制到經由貫穿孔⑽照射至其上的光訊號。 接下來說明本發明之光接收模組5〇〇的操作方式。本 發明的光接收模組5()()的光路方向是跟光發射模組咖是 剛好相反，含有多個波長（λ1、λ2、λ3、λ4)的光訊號經 由插接在插座146上的光纖而入射至本體1〇2内。此多波 長光訊號先經過通道透鏡148將光導成近似平行光並且通 過通道144而進入至空間14〇内，進而入射至四片薄膜濾 波片150中的第一個，進行的分光，使波長為^的光訊號 分離出來而照射至相關調整器120上的反射鏡U8，進而 反射通過相關之透鏡116而聚光到第一個光檢測器7〇6的 光一極體708上，以將該波長λ4之光訊號轉換成相應的電 訊號。其餘的光則由該第一個薄膜濾波片150加以反射到 第二個薄膜濾波片150上，將波長為λ3的光訊號分離出 來。此波長λ3之光5虎會由相關的反射鏡118反射至相關 透鏡116内而聚光到相關之光檢測器706的光二極體707 上，以將λ3光訊號轉換成相應的電訊號。其餘的光再由第 二個薄膜濾波片150反射到第三個薄膜濾波片150上，使 得波長為λ2的光訊號分離出來，並經由相關反射鏡118反 射通過相關透鏡116而聚光到相關光檢測器706的光二極 體708上，以將λ2光訊號轉換成相應的電訊號。剩下的波 長λΐ的光再由第三個薄膜濾波片150反射通過至第四個薄 膜濾波片150上，再由相關的反射鏡118加以反射通過相 關透鏡116而聚光到相關光檢測器706的光二極體708， 18 1273299 以將λΐ光訊號轉換成相應的電訊號。 由於波長的不同，再加上各個波長所走的路徑長度不 同，導致最後經過透鏡116聚焦到光檢測器7〇6的最佳距 離也不同，因此，本發明的光接收模組5〇〇也可以透過跟 前述光發射模組100同樣的方式，最佳化本體1〇2之下表 面106上的各定位槽112的深度dl、d2、d3、d4，並且可 以透過調整器120,藉由雙軸式調整作業來調整反射鏡118 的位置而角度，以彌補其他元件組裝的誤差，使整個系統 的耦合效率達到最佳化，並可藉由此功能補償加工的誤差 和組裝的誤差，以增加整個系統的容忍度，並使良率提高。 前述的二個實施例係分別針對光發射模組及光接收模 組，但疋熟知此技藝之人士可以輕易地將二者加以結合而 構成一個兼具有光發射及光接收功能的光學次模組。 綜合前面所述，本發明具有以下的優點： 一、 本發明的光學次模組具有新穎的光路設計，可以 有效地縮短整個系統的光路長度與系統的體積，此種新穎 的光路設計搭配前述的主動對位功能，做有限範圍的主動 。周整’可以有效地提升光收發模組中的光麵合效率。 二、 本發明的主動對位功能可以有效地補償各光學元 件’如透鏡、薄膜濾波片、光纖插座或連接器、光源產生 器或光檢測器基座等，在組裝與製程上的誤差。 三、 本發明的設計可以針對各種不同波長的光源，進 仃個別波長光耦合效率的最佳化設計，進行達成整個系統 的耦合效率最佳化。 19 1273299 企圖僅為用以解釋本發明之較佳實施例，並非 同^ 心，凡有在相 庫包關本發明之任何修飾或變更，皆仍 愿包括在本發明意圖保護之範疇。 【圖式簡單說明】 -應用上之 第圖疋本發明之光學次模組裝置在光發射模組 實施例的分解圖。 第二圖是本發明之光發射模組實施例的本體的外觀圖。 第三圖是本發明之光發射模組實施例的本體自底部視之的 外觀圖。 第四圖是本發明之光發射模組實施例中的調整器的外觀 圖。 第五圖是調整器的分解圖。 第六圖是沿著第一圖中線6-6所取的剖面圖。 第七圖是本發明之光學次模組裝置在光接收模組應用上之 實施例的分解圖。 【主要元件符號說明】 100 光發射模組 本體 104上表面 106下表面 1273299 貫穿孔 環周突緣 定位槽 槽孔 透鏡 反射鏡 調整器 第一構件 第二構件 轉動軸線 轉動軸線 第一枢轴 插孔 第二樞軸 轴孔 壁部 空間 穿孔 通道 插座 通道透鏡 薄膜濾波片 光源產生裝置 基座 21 1273299 卡榫 光源產生器 雷射二極體 光接收模組 光檢測裝置 基座 卡榫 光檢測器 光二極體Cooler) to control its temperature' to avoid the wavelength of the laser due to temperature changes. Therefore, the cost and energy loss are also relatively increased. = split-multiplexing technology, which also multi-couples optical signals of multiple wavelengths on the strip fiber, but uses a larger wavelength spacing 曰=m) 'for this rimage, its laser It is not necessary to use the cold 11 to control the temperature change, but only to reduce the excessive wavelength drift caused by the temperature with an appropriate heat dissipation design. In addition, for the purpose of achieving a transmission bandwidth of 1 GGb/s, the c-transmission of tw is only required to make the service wheel slower, heavier, cheaper, and the p-wheel speed is 3.125 Gb/s or The effect of slower-speed lightning such as 2.5Gb/S. Similarly, if in order to achieve 40Gb/s, H only f makes the four-battery b/s Raywei can have a lower transmission bandwidth of the lower speed. According to this concept, only a few lasers are needed. The effect of transmission speed. Therefore, in terms of receiving the sire, the measured area, (4), and the corresponding light diode have a greater sense of effect. The tolerance of the overall error and the efficiency of the integration are relatively low. The design of the laser and the driver circuit is relatively easy to use. In the part of the electrical submodule module, the more difficult part of Ur It is optical time", the chip is designed to pass several wavelengths of 1273299 (T0SA part) through a good optical path, or the fiber is shot == to each photodetector (R0SA part), so that the whole ik ' and volume Minimize, to meet the specifications of the source greement, or to turn over the module, the purpose of the job. Because the optical signal of multiple wavelengths must be combined to the optical fiber, the optical signal of each wavelength The efficiency is a very important factor for the loss of the signal. The method of improving the efficiency of the lightness is the assembly of the piece, and the design of the (10) is usually the so-called passive Mi precision. The Γ Γ Γ Γ ( ( ( ( ( Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ Γ The lens used in the group, thin relative to The accuracy of the path is subject to machining: 彳i produces a small error. The county has a difficult space in the component group, so the slip cannot be corrected. = In view of this, the invention of the application previously filed by the inventor of the present invention The patent designation is that I, the number 'name of the optical sub-module device for optical transceiver 11' reveals a kind of photoacoustic + ganrb ϊ> 里里尤 _人杈 group, which makes the alignment of the components In addition to the position, the so-called "active alignment: the advance step provides the alignment accuracy. The so-called "active alignment" means that the optical element is in addition to the _ riding position in the reading = After the optical module is applied, the two passes are further improved to further improve the accuracy of the alignment. 1273299 However, in the prior invention application, since the light source generator is disposed on the pedestal on the second reading side of the diode wire, and in combination with the body of the field hair module, each pedestal requires a pedestal, In the case of a multi-wavelength multi-mode optical transceiver module that provides multiple wavelengths of optical signals, the two modules are bulky at the same time, and the two modules become larger in size. It is quite unfavorable. - Furthermore, since the active alignment used in the previous application utilizes the clearance between the apertures of the optical elements (such as the light source generator) to provide adjustment of the alignment of the fresh components, After the adjustment is completed, it is still necessary to adjust the two by his method, and the manufacturing process is equivalent to the increase of manufacturing time and cost. Therefore, it is necessary to develop a new type of module to overcome the shortcomings of the conventional technique. $, [Summary of the Invention] The object of the present invention is to provide a kind of optical transceiving module active alignment and culvert alignment, so that the accuracy of the sub-position is not good, and the ratio is ri Re:: is to provide - kind of optical transceiver module, its ... easy way, such as silk, because of (four) process, upgrade system fare 1273299 based on this 'this invention is related to an optical transceiver module, with more The optical sub-module of the work and the work, including the transmitting module or the receiving module, or both. The transmitting module comprises four laser light sources, respectively emitting optical signals of different wavelengths, and after being collimated, is reflected by the mirror to the same plane and is coated by the thin film filter and the light sheet. Then, the lens is lightly combined into the fiber and the hair is shot out. The receiving module includes a thin film light-passing sheet, and the incident light is split into light signals, and the optical signals are reflected by the four mirrors onto the light sensing element to be converted into electrical signals. The mirror is biaxially adjusted to adjust its tilt angle to provide the active $ position of Wei. In addition, on the body of the transmitting module or the receiving module, an f-bit slot is provided for accommodating the laser light sensing component, and the depth of the positioning slot is set for the wavelength of the associated optical signal to achieve a passive pair. The power of the month. Thereby, the optical sub-module can optimize the light-lighting efficiency by active and passive alignment. [Embodiment] The structure and function of the present invention will be described with reference to the preferred embodiments of the present invention. The optical sub-module device of the present invention can be applied to a light-emitting module or a light-receiving module, or to an optical sub-module having both a light-emitting group and a light-receiving module. The following will first be described with respect to an embodiment of a light emitting module. Referring first to the first drawing, there is shown an exploded view of the optical sub-assembly assembly of the present invention applied to a light-emitting module, wherein the light-emitting module is designated by reference numeral 100. The light emitting module 100 includes a body 1273299 1〇2' having an upper surface 104 and a lower surface 1〇6. - Light is bonded to the lower surface ι 6 of the body 102. Spears (9) Please refer to the second and third figures at the same time, wherein sub-(4) shows an external view of the body 102 from above and below. In the illustrated embodiment, the body 104 is a slightly flat cube. The upper surface 1〇4 and the lower surface 106 are substantially parallel to each other, and a plurality of through holes (10) are provided therebetween, which are four in the embodiment, but may be provided with other numbers of through holes 108' such as a person . Each of the through holes (10) is substantially perpendicular to the upper surface 1〇4 and the lower surface and extends from the upper surface to the lower surface to form a passage completely through the body 1〇2. These channels serve as channels through which the beam passes, as will be further explained below. The lower surface 106 is provided with a circumferential flange η 延伸 extending along the periphery thereof, and the circumferential flange 110 and the lower surface 106 together form an accommodating space for accommodating the light source generating cymbal 300. The lower surface 1〇6 is provided with a concave positioning groove 112 corresponding to each of the through holes 1〇8 in a region surrounded by the circumferential flange ιι. This clamp groove 112 is formed on the lower surface 1Q6 without penetrating to the upper surface 104. Each through hole 108 extends from the bottom of the positioning groove 112 to the upper surface 104. Since four through-holes 108 are provided in the body 1〇2 in this embodiment, four positioning grooves 112 are also provided on the lower surface 1〇6. The light source generating device 300 comprises a base 302, which is formed by a circuit board provided with a control circuit. The shape and size of the base 3〇2 corresponds to the circumferential flange of the lower surface of the body 102. The accommodating space formed by the 〇 因此 can be tightly accommodated in the accommodating space and can be fixed in the accommodating space in a suitable manner. For example, in this embodiment 1273299, a slot 114 is provided on the inner side surface of one of the side walls of the peripheral flange 110, and a card hole 3〇4 is protruded on one side of the base 302, which can be press-fitted. The base 3〇2 is fixed to the lower surface 1〇6 of the body 102 by inserting into the slot 114 in a tight fit manner. Alternatively, other combinations may be employed, such as securing the base 302 to the circumferential flange 11 by an adhesive, which is generally known to those skilled in the art and will not be described again. Each of the positioning grooves 112' of the body 1〇2 on the eight light source generating device 300 is provided with a light source generator 3〇6 which is shaped and sized to be inserted into the positioning groove 112Θ. Each of the light source generators 3〇6 is provided with a light source 3〇8, for example, a laser diode' can generate a laser beam. The position of the laser diode period 疋 corresponds to the through hole 108, so that the laser beam emitted from the laser diode 3〇8 can be irradiated along the through hole (10) to the upper surface chamber of the body transfer. In this embodiment, a collimation I is provided in each of the through-holes 1〇8 or at a suitable position thereon. The collimating device 116 is used for collimating the laser beam, and thus is disposed in the arrangement. A suitable distance from the laser diode 3〇8 to direct the laser beam into a parallel beam. The collimating device 4 may be a single-lens' consisting of a spherical mirror or an aspherical mirror, or a lens group composed of a plurality of lenses. For convenience of explanation, the "lens"-word will be used to represent the collimator 1 of the lens. The second embodiment of these lenses can be coated with a wavelength-selective anti-reflective optical film layer according to different laser wavelengths. To reduce reflection losses. This is also known to the optical technology as it is known, and therefore will not be described in detail. The lens or lens group constituting the collimating device 116 may be fixed to or in the through hole 1〇8 of the body 102 by a photocurable UV (ultraviolet) glue, a thermosetting glue, or other adhesive material 11 1273299. Alternatively, it is sintered by glass t〇metal seals. Alternatively, it may be a lens or a lens group in which the body is made of a plastic material by injection molding. It can be molded with the body-body. Also, please refer to the fourth and fifth figures. On the upper surface 104 of the body 1 〇 2 corresponding to each of the collimating devices 116, an anti-Wei 118 is provided. The reciprocal 118 has a proper tilt angle of #° with respect to the axis of the through hole 1〇8, and the parallel laser beam passing through the collimating device 116 can be guided to a specific direction, which will be further explained below. . According to the present invention, each of the mirrors 118 is fixed to the upper surface 1〇4 of the body 1〇2 by an adjuster 12 having an active alignment function in an adjustable square=. In the case of the embodiment, the adjuster 12 includes a first member (straight adjustment member) 122 and a second member (horizontal adjustment member) 124, and the mirror ι is provided at the second member 124. In the above, it may be part of the second member as a whole, or it may be separately manufactured and then fixed to the second member. Both the first and second members 122, 124 are rotatable about respective axes of rotation 126, 128, as indicated by arrows A and B in FIG. 4, to adjust the orientation of the mirror 118, thereby adjusting the mirror 118. The direction in which the laser beam is reflected out to achieve the active alignment function. In the illustrated embodiment, the first member 122 has a cylindrical first pivot 130 that is concentric with the axis of rotation 126 and can be inserted into the circular receptacle 132 provided on the upper surface 1〇4, and Rotating within the receptacle 132 allows the trim 120 to rotate about the axis of rotation 126 on the upper surface 104. 12 1273299 In this embodiment the 'rotational axis 126 is substantially perpendicular to the upper surface _, so that the first member 122, which is a misalignment adjustment member, is rotatable about the axis of the vertical surface 104. However, it will be appreciated that the axis of rotation does not appear to be perpendicular to the upper surface 104. The first member 12 is further provided with a shaft 133 and a rotation axis 128, which can be inserted into the shaft hole 136 provided in the second age 124, so that the second member can be rotated around the second pivot 134 (ie, rotating) The axis 128) rotates relative to the first member 12(). Another possible way is to arrange the shaft hole on the first member and the second drag shaft on the second member, so that the rotation of the second member relative to the first member can also be achieved. In this embodiment, the second pivot 134 is substantially parallel to the upper surface of the body, so that the second member acting as a horizontal adjustment member can be rotated purely horizontally parallel to the upper surface UM. However, it can be understood that the second axis of rotation 128 may not be parallel to the upper surface 1〇4, but the second pivot 134 is not parallel to the first pivot axis 13〇 in order to achieve a double-axis adjustment effect. In the illustrated embodiment, the rotational axis 126 of the first pivot 13A is orthogonal to the rotational axis 128 of the second pivot 124. By rotating the first member 122 and the second member 124 about the respective axes of rotation 126, 128 relative to the body 1〇2, the position of the reflection=118 relative to the upper surface 104 of the body 1〇2 can be adjusted and Direction, this will help the active alignment. This section will be further explained below. Although in this embodiment the 'adjuster 120 can adjust the position and angle of the mirror 118 through the rotation of the first and second pivots 13 and 134, 13 1273299, however, it is also possible to use only a single pivot. The adjustment work of the mirror 118 is performed. In practice, the first pivot 13 〇 and the circular insertion hole 132 of the body, and the second pivot 134 and the shaft hole 136 of the second member 122 may have a certain frictional force, which may contribute to the first The member 12A, the second member 122, and the body 1〇2 are temporarily or permanently fixed after rotation. Therefore, after the adjustment operation of the mirror 118 is completed, the first member 122 and the second member 124 of the adjuster 120 can be directly fixed if necessary. For example, the first member 122 and the second member 124 may be glued together using an adhesive and glued to the upper surface 1〇4 of the body 1〇2, or may be formed using electric resistance welding or laser welding techniques. The upper surface 1 〇 4 of the body 102 is additionally provided with a wall portion 138 surrounding a space 140 having four inner side surfaces, each of which is provided with a through hole 142 corresponding to each of the mirrors 118, thus reflecting from the mirror The emitted laser beam can pass through the through hole 142 and enter the space 14 〇 the inner wall 卩 138 is open to form a channel Μ #, which is in communication with the space 140, and the front exit of the channel 144 is combined with a The socket or connection tm, 146 is inserted into an external optical fiber (not shown) for transmission and reception of optical signals. A channel lens 148 is provided in the socket 146 for directing the laser beam into the fiber or into the space 14 from within the fiber. The socket 146 may be secured to the exit of the channel 144 on the body 102 using a photocurable UV glue, a heat curing adhesive, or other adhesive, or in other manners such as laser spot welding or resistance spot welding. The socket 146 is fixed to the body 1〇2. 14 1273299 In addition, the socket 146 for engaging the external optical fiber may be various types of optical fiber connectors, such as the Lc type, the sc type, the FC type, or other types. This department is well-known to the people who know the light rails, so it is described here. Further, on the wall portion 138, a surface of each of the through holes 142 is provided with a membrane filter and a wave plate 15G, and the function of the light emitting module towel is to serve as a mirror. By the reflection of each of the thin film filters 15 ,, the laser beams entering the space 140 through the perforations will be guided to travel along the channel 144 and enter through the channel lens 148 to be inserted into the socket 146. Inside. Next, the operation mode of the light-emitting module of the present invention will be described with reference to the example of the first figure. When the first light source generator 306 on the pedestal 3〇2 of the light source generating device 3 emits the first laser light of the wavelength ^, the laser light passes through the corresponding through hole (10) of the body 102. The collimating device 116 therein passes through a shape that approximates parallel light, and the parallel first laser beam is reflected by the mirror 118 on the phaser 12G through the through hole 142 in the wall portion 138, thereby entering the space. 14〇, and reflected and coupled by the first thin film filter 15〇 in front, and then the laser light of the wavelength 2 is combined with the two light source generators 306 on the light source generating device 300. Then, the second thin film filter 150 is traversed to the second light source generator, and the wavelength of the second thin film filter 15 is emitted by the third light source filter 3〇6. The laser light meets and is incident on the second film filter 15 〇, and is reflected and coupled by the third film tear wave plate 150 and the fourth light source generator 3 〇 6 is emitted. 15 1273299 The wavelength is λ4 The laser light meets. The light at this time contains a total of four wavelengths of optical signals such as λ1, λ2, λ3, and λ4, and is finally coupled to the optical fiber inserted in the socket 146 through the condensing of the channel 144 and the channel lens 148. The optical signal coupling operation of such a light-emitting module can be referred to the aforementioned Chinese Patent Application No. 93118803, which will not be further described herein. Referring to the sixth figure, the body 1〇2 is a single unitary structure. Since the optimal distances of the laser beams of different wavelengths reaching the respective lenses or the collimating device 116 are different, the design of the body 1〇4 can be At the time of manufacture, the optimized depths of the positioning grooves 112 are set in advance (12, d3, and d4. The optimum depth of each positioning groove 112 varies depending on the relevant laser wavelength, and these are set in advance. The distances of the depths ^, ^, ^, ^, the light source generator 306 (or the laser light source 3〇8 thereon) to the lens of the associated collimating device 116 can be adjusted to match various wavelengths in advance, in order to The laser light passing through the lens of the collimating device 116 is guided into approximately parallel light, so that it can be applied to long-wavelength communication or short-wavelength transmission, and the application level is extremely wide, that is, the passive function of the optical transceiver module of the present invention. In addition, during assembly, through the two-axis adjustment function of the adjuster 12〇, the position and orientation (or tilt angle) of each mirror 118 can be adjusted to match the relevant optical components to compensate its The errors caused by the assembly of other components (such as lenses, thin film filters, sockets, and light source generator bases) increase the tolerance of the entire system, improve yield, and optimize the coupling efficiency of the entire system. The embodiment is the "active alignment" function of the optical transceiver module of the present invention. Next, with reference to the seventh embodiment, an embodiment of the optical transceiver module of the present invention applied to the optical module 16 1273299 is illustrated. The optical receiving module of the present invention In the figure, it is indicated by reference numeral 500. Like the above-mentioned light-emitting module 1〇〇, it has a body having the same structure as the body of the light-emitting module, and thus the body and related components or components. In the drawings, the same reference numerals will be used to refer to the same reference numerals, and the description will not be repeated. The light receiving module 5 is provided with a light detecting device, which is marked with reference numeral 700 in the figure instead. The light source generating device 300 in the light emitting module 100. In this case, the light detecting device 700 is also accommodating and fixed in the accommodating space on the lower surface 106 of the body 1 , 2, and the light detecting is performed. 7 is coupled to the body 102 to form the light receiving module 5A of the present invention. The light detecting device 700 includes a base 7〇2, which is composed of a circuit board provided with a control circuit. The shape and size of the seat 7〇2 is equivalent to the space I formed by the circumferential flange n〇 on the lower surface 106 of the body 102. Therefore, it can be tightly accommodated in the accommodating space, and can be appropriately arranged. It is fixed in the accommodating space. For example, on one side of the pedestal 7〇2, a latch 704 is protruded, which can be inserted into the ring on the lower surface 1〇6 of the body 102 in an ink-fit or close fit manner. The base 702 is fixed to the lower surface 1〇6 of the body 1〇2 in the slot 114 on the inner side surface of the peripheral flange n〇. The same as the light-emitting module 100, other combinations may be used, for example. The pedestal 702 is secured within the circumferential flange 11〇 with an adhesive. The photodetecting device 700 is provided with a photodetector 706 for each positioning slot 112 of the main body 1 2 , which can be accommodated in the positioning slot 112 . Each of the photodetectors 706 is provided with a photo-sensing element 7〇8, such as a photodiode, which can be referred to as a photometric signal (such as laser light) to generate a corresponding electrical signal. The position of the photodiode 17 1273299 corresponds to the through hole 1〇8 on the body 1〇2, so that the light signal irradiated thereto through the through hole (10) can be received and formed. Next, the operation mode of the light receiving module 5A of the present invention will be described. The light receiving direction of the light receiving module 5()() of the present invention is exactly opposite to that of the light emitting module, and the optical signal containing a plurality of wavelengths (λ1, λ2, λ3, λ4) is inserted through the socket 146. The optical fiber is incident into the body 1〇2. The multi-wavelength optical signal first passes through the channel lens 148 to conduct the light into approximately parallel light and enters the space 14〇 through the channel 144, and then enters the first of the four thin film filters 150 to perform the splitting to make the wavelength The optical signal is separated and irradiated to the mirror U8 on the associated adjuster 120, and then reflected by the associated lens 116 to be condensed onto the light-emitting body 708 of the first photodetector 7〇6 to The optical signal of λ4 is converted into a corresponding electrical signal. The remaining light is reflected by the first thin film filter 150 onto the second thin film filter 150 to separate the optical signal of wavelength λ3. The light 5 of the wavelength λ3 is reflected by the associated mirror 118 into the associated lens 116 and condensed onto the photodiode 707 of the associated photodetector 706 to convert the λ3 optical signal into a corresponding electrical signal. The remaining light is then reflected by the second thin film filter 150 onto the third thin film filter 150, so that the optical signal of wavelength λ2 is separated and reflected by the associated mirror 118 through the associated lens 116 to collect the relevant light. The photodiode 708 of the detector 706 converts the λ2 optical signal into a corresponding electrical signal. The remaining wavelength λ ΐ light is then reflected by the third thin film filter 150 to the fourth thin film filter 150, and then reflected by the associated mirror 118 through the associated lens 116 to be condensed to the associated photodetector 706. The light diodes 708, 18 1273299 are used to convert the λ ray signal into corresponding electrical signals. Since the wavelengths are different, and the path lengths of the respective wavelengths are different, the optimum distance for focusing on the photodetector 7〇6 through the lens 116 is different. Therefore, the light receiving module 5 of the present invention is also The depths dl, d2, d3, and d4 of the positioning grooves 112 on the lower surface 106 of the body 1〇2 can be optimized in the same manner as the light emitting module 100 described above, and can pass through the adjuster 120 through the double The shaft adjustment operation adjusts the position and angle of the mirror 118 to compensate for the error of assembly of other components, optimizes the coupling efficiency of the entire system, and compensates for machining errors and assembly errors by this function to increase The tolerance of the entire system and the increase in yield. The foregoing two embodiments are directed to a light emitting module and a light receiving module, respectively, but those skilled in the art can easily combine the two to form an optical submode having both light emitting and light receiving functions. group. In summary, the present invention has the following advantages: 1. The optical sub-module of the present invention has a novel optical path design, which can effectively shorten the optical path length of the entire system and the volume of the system. The novel optical path design is matched with the foregoing. Active alignment function, doing a limited range of initiative. The whole circumference can effectively improve the light surface combining efficiency in the optical transceiver module. Second, the active alignment function of the present invention can effectively compensate for errors in assembly and process of optical components such as lenses, thin film filters, fiber optic sockets or connectors, light source generators or photodetector pedestals. Third, the design of the present invention can optimize the optical coupling efficiency of individual wavelengths for various wavelengths of light sources, and optimize the coupling efficiency of the entire system. 19 1 273 299 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 BRIEF DESCRIPTION OF THE DRAWINGS - Application FIG. 3 is an exploded view of an embodiment of an optical sub-module device of the present invention in a light-emitting module. The second figure is an external view of the body of the embodiment of the light-emitting module of the present invention. The third figure is an external view of the body of the light-emitting module embodiment of the present invention viewed from the bottom. The fourth figure is an external view of the adjuster in the embodiment of the light-emitting module of the present invention. The fifth picture is an exploded view of the adjuster. The sixth figure is a cross-sectional view taken along line 6-6 of the first figure. Figure 7 is an exploded view of an embodiment of the optical sub-module device of the present invention applied to a light receiving module. [Main component symbol description] 100 light emitting module body 104 upper surface 106 lower surface 1273299 through hole ring circumferential flange positioning slot slot lens mirror adjuster first member second member rotation axis rotation axis first pivot jack Second pivot shaft hole wall space perforation channel socket channel lens film filter light source generating device base 21 1273299 card light source generator laser diode light receiving module light detecting device base card light detector light dipole body