TW201823784A - Welding-free optical transceiver subassembly of light guiding unit capable of preventing loss of optical power and warpage of the light guiding unit - Google Patents
Welding-free optical transceiver subassembly of light guiding unit capable of preventing loss of optical power and warpage of the light guiding unit Download PDFInfo
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- TW201823784A TW201823784A TW105142602A TW105142602A TW201823784A TW 201823784 A TW201823784 A TW 201823784A TW 105142602 A TW105142602 A TW 105142602A TW 105142602 A TW105142602 A TW 105142602A TW 201823784 A TW201823784 A TW 201823784A
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Abstract
Description
本發明係關於一種免悍接光導引單元之光收發次模組。 The invention relates to a light transmitting and receiving sub-module of a light-free light guiding unit.
在光纖通訊系統中,光收發次模組(Optical Sub-Assembly for Transceivers)為光訊號與電訊號轉換中之重要媒介,光收發次模組可分為發射光訊號的光傳輸次模組(Transmitting Optical Sub-Assembly,TOSA);可同時容納雙方向的訊息於同一光纖內的雙向光收發次模組(Bi-direction Optical Sub-Assembly,BOSA);以及可同時接收數位訊號及類比訊號並發射數位訊號的三向光收發次模組(Tri-direction Optical Sub-Assembly,TRI-DI OSA)等類型。如圖一所示,以BOSA型式作為實施例說明,其具有一收容本體10連結一發光單元11及一光導引單元12,並使該發光單元11位於該收容本體10的中心軸線上,且使該發光單元11及該光導引單元12精確對準並耦光。該光導引單元12分為尾纖式(Pigtail type)及插座式(Receptacle type),本實例以尾纖式光導引單元作說明。 In optical fiber communication systems, Optical Sub-Assembly for Transceivers is an important medium in the conversion of optical signals and electrical signals. Optical transceiver sub-modules can be divided into optical transmission sub-modules that transmit optical signals. Optical Sub-Assembly (TOSA); Bi-direction Optical Sub-Assembly (BOSA) that can simultaneously hold bidirectional information in the same fiber; and can simultaneously receive digital signals and analog signals and transmit digital Signal tri-direction optical sub-assembly (TRI-DI OSA) and other types. As shown in FIG. 1, a BOSA type is used as an example for description. It has a receiving body 10 connected to a light-emitting unit 11 and a light guiding unit 12, and the light-emitting unit 11 is located on a central axis of the receiving body 10. The light emitting unit 11 and the light guiding unit 12 are accurately aligned and coupled with each other. The light guiding unit 12 is divided into a pigtail type and a socket type, and this example uses a pigtail type light guiding unit as an example.
該收容本體10的內部設置有一濾光片13,這將使發光單元11的光訊號碰到濾光片13後產生折射現象,如箭頭A1-A2的入射方向所示,進而改變光訊號的聚焦位置,因此,該光導引單元12需藉由X、Y、Z軸移動平台作光學對準,以使發光單元11的光訊號A2與該光導引單元12的光纖14 作耦光對準,並利用雷射焊接設備使該光導引單元12與該收容本體10成為連結。然而在雷射焊接完成時,該光導引單元12因熱脹冷縮容易產生翹曲(Warpage),使該光導引單元12與該收容本體10無法完全密接進而產生間隙S,使光功率位移(Power shift),造成光功率能量的損失。 A filter 13 is disposed inside the receiving body 10, which will cause the light signal of the light-emitting unit 11 to collide with the filter 13 as shown by the incident directions of the arrows A1-A2, thereby changing the focus of the light signal Position, therefore, the light guide unit 12 needs to be optically aligned by moving the X, Y, and Z axes, so that the optical signal A2 of the light emitting unit 11 is aligned with the optical fiber 14 of the light guide unit 12 The laser guiding device is used to connect the light guiding unit 12 and the receiving body 10. However, when laser welding is completed, the light guide unit 12 is prone to warping due to thermal expansion and contraction, so that the light guide unit 12 and the housing body 10 cannot be completely in contact with each other and a gap S is generated, which causes optical power. Power shift causes loss of optical power and energy.
緣此,本發明的主要目的係提供一種免用焊接即可將光導引單元與收容本體成為連結,以解決現有技術的問題。 For this reason, the main object of the present invention is to provide a light guide unit that can be connected to the receiving body without welding, so as to solve the problems of the prior art.
為達上述功效及目的,本發明一種免悍接光導引單元之光收發次模組,包括一收容本體可用以連結光學元件如一發光單元、一光導引單元等光學元件,該收容本體的上端部具有一環形凸緣;該光導引單元具有一軸管及一保護罩,在該軸管與該保護罩之間形成有一卡合空間;及一卡合件可結合於該環形凸緣及卡合空間,藉此讓該收容本體與該光導引單元之間成為組合但未扣緊狀態,並藉由一移動平台使該光導引單元作光學平面調整,直到該光導引單元與該發光單元的光訊號作耦光對準,最後透過接著劑使該卡合件、該收容本體與該光導引單元成為連結。 In order to achieve the above-mentioned effects and objectives, a light-receiving sub-module for a light-free light-guiding unit according to the present invention includes a receiving body that can be used to connect optical elements such as a light-emitting unit and a light-guiding unit. The upper end portion has an annular flange; the light guide unit has a shaft tube and a protective cover, an engaging space is formed between the shaft tube and the protective cover; and an engaging member can be combined with the annular flange and The space is engaged, so that the receiving body and the light guiding unit become a combined but not fastened state, and the light guiding unit is adjusted to an optical plane by a moving platform until the light guiding unit and the light guiding unit are adjusted. The light signal of the light-emitting unit is aligned with the coupled light, and finally, the engaging member, the receiving body and the light guiding unit are connected through an adhesive.
10‧‧‧收容本體 10‧‧‧Contains the body
11‧‧‧發光單元 11‧‧‧light-emitting unit
12‧‧‧光導引單元 12‧‧‧light guide unit
13‧‧‧濾光片 13‧‧‧ Filter
14‧‧‧光纖 14‧‧‧ Optical Fiber
S‧‧‧間隙 S‧‧‧ Clearance
20‧‧‧光收發次模組 20‧‧‧ Optical transceiver module
21‧‧‧收容本體 21‧‧‧Contains the body
22‧‧‧第一連接埠 22‧‧‧Port 1
23‧‧‧第二連接埠 23‧‧‧Second Port
24‧‧‧第三連接埠 24‧‧‧ Third port
25‧‧‧環形凸緣 25‧‧‧ annular flange
30‧‧‧光導引單元 30‧‧‧light guide unit
31‧‧‧發光單元 31‧‧‧Light-emitting unit
32‧‧‧光接收單元 32‧‧‧light receiving unit
33‧‧‧軸管 33‧‧‧ shaft tube
34‧‧‧保護罩 34‧‧‧Protective cover
35‧‧‧卡合空間 35‧‧‧ snap-in space
40‧‧‧卡合件 40‧‧‧ Engagement
41‧‧‧U形軸圈 41‧‧‧U-Shaped Collar
42‧‧‧頂面部 42‧‧‧Top Facial
43‧‧‧U型口 43‧‧‧U-shaped mouth
44‧‧‧U形凹槽 44‧‧‧U-shaped groove
圖1為習知光收發次模組之斷面圖。 FIG. 1 is a sectional view of a conventional optical transceiver module.
圖2為本發明之立體圖。 FIG. 2 is a perspective view of the present invention.
圖3為本發明之斷面圖。 Fig. 3 is a sectional view of the present invention.
圖4為本發明之立體圖,其中該卡合件以剖面圖表示。 FIG. 4 is a perspective view of the present invention, wherein the engaging member is shown in a sectional view.
圖5為本發明之立體圖,其中該卡合件尚未安裝於收容本體與光導引單 元之間。 Fig. 5 is a perspective view of the present invention, wherein the engaging member has not been installed between the receiving body and the light guide unit.
圖6為顯示本發明卡合件從另一方向觀之的立體圖。 FIG. 6 is a perspective view showing the engaging member of the present invention viewed from another direction.
圖7為圖5之斷面圖。 FIG. 7 is a sectional view of FIG. 5.
為使專精熟悉此項技藝之人仕業者易於深入瞭解本發明的構造內容以及所能達成的功能效益,茲列舉一具體實施例,並配合圖式詳細介紹說明如下: In order to make those who are familiar with this technology easily understand the construction content of the present invention and the functional benefits that can be achieved, a specific embodiment is listed below, and it is described in detail in conjunction with the drawings as follows:
請參閱圖2至圖4所示,本發明免焊接光導引單元之光收發次模組20包括一收容本體21,一光導引單元30,以及一卡合件40;其中該收容本體21具有數個連接埠,本實施例以三個連接埠作實例說明,如第一連接埠22位於該收容本體21的頂部,用以連結該光導引單元30;第二連接埠23位於該收容本體21的底部,用以連結一發光單元31;第三連接埠24可用以連結一光接收單元32其設置方向位於該光導引單元30與發光單元31的垂直軸線上,而成為一T型收容本體,此為眾所皆知的知識,在此不再贅述。另外,該光收發次模組以雙向光收發次模組(Bi-direction Optical Sub-Assembly,BOSA)作為實施例說明,及該光導引單元以尾纖式光導引單元30作為實施例說明。 Please refer to FIG. 2 to FIG. 4. The light transmitting and receiving sub-module 20 of the welding-free light guiding unit according to the present invention includes a receiving body 21, a light guiding unit 30, and an engaging member 40. The receiving body 21 There are several ports. This embodiment uses three ports as an example. For example, the first port 22 is located on the top of the receiving body 21 to connect the light guide unit 30. The second port 23 is located in the receiving. The bottom of the body 21 is used to connect a light-emitting unit 31; the third connection port 24 can be used to connect a light-receiving unit 32, and its setting direction is located on the vertical axis of the light-guiding unit 30 and the light-emitting unit 31, and becomes a T-shape Containing the body, which is well-known knowledge, will not be repeated here. In addition, the optical transceiver sub-module uses a bi-direction optical sub-assembly (BOSA) as an embodiment, and the optical guiding unit uses a pigtail type optical guiding unit 30 as an embodiment. .
本發明的特點在於該光導引單元30與該收容本體21間藉由該卡合件40使其成為結合。其中,該收容本體21的上端部具有一環形凸緣25。該光導引單元30具有一軸管33及一保護罩34,且該軸管33與保護罩34之間形成有一卡合空間35。 The present invention is characterized in that the light guiding unit 30 and the receiving body 21 are combined by the engaging member 40. The upper end of the receiving body 21 has an annular flange 25. The light guiding unit 30 includes a shaft tube 33 and a protective cover 34, and an engaging space 35 is formed between the shaft tube 33 and the protective cover 34.
如圖5及圖6所示,該卡合件40具有一U形軸圈41,及一頂面 部42與該U形軸圈41為一體結構。該頂面部42具有一U型口43可插入並結合於該光導引單元30的卡合空間35。該U形軸圈41的內壁面形成有一相連的凹凸槽與該收容本體21的頂端位置相對應。實質上,該U形軸圈41具有一U形凹槽44可插入並結合於該收容本體21的環形凸緣25,此時該收容本體21與該光導引單元30之間藉由該卡合件40使其成為組合但未扣緊狀態,並使該光導引單元30可作些許的平面位移。 As shown in Figs. 5 and 6, the engaging member 40 has a U-shaped shaft ring 41, and a top surface portion 42 and the U-shaped shaft ring 41 are integrated. The top surface portion 42 has a U-shaped opening 43 that can be inserted into the engaging space 35 of the light guide unit 30. A concavo-convex groove is formed on the inner wall surface of the U-shaped collar 41 to correspond to the top end position of the receiving body 21. In essence, the U-shaped shaft ring 41 has a U-shaped groove 44 that can be inserted and coupled to the annular flange 25 of the receiving body 21. At this time, the card is inserted between the receiving body 21 and the light guide unit 30 via the card The combination member 40 makes it into a combined but not fastened state, and allows the light guide unit 30 to make a slight plane displacement.
圖7顯示本發明卡合件40準備安裝於該收容本體21與該光導引單元30之間,首先將該光導引單元30安置於該收容本體21的第一連接埠22,接著將該卡合件40安裝於該收容本體21與該光導引單元30之間,讓該頂面部42的U型口43插入該光導引單元30的卡合空間35,及U形凹槽44嵌入於該光導引單元30的環形凸緣25,使該收容本體21與該光導引單元30之間藉由該卡合件40使其成為組合但未扣緊狀態,並使該光導引單元30可作些許的平面位移,該光導引單元30可藉由一X、Y軸移動平台(圖中未示)作光學平面調整,直到該光導引單元30的光纖與該發光單元31的光訊號作耦光對準,最後透過接著劑使該卡合件40、該收容本體21與該光導引單元30成為連結,如圖2。 FIG. 7 shows that the engaging member 40 of the present invention is ready to be installed between the accommodating body 21 and the light guide unit 30. The light guide unit 30 is first placed in the first connection port 22 of the accommodating body 21, and then the The engaging member 40 is installed between the receiving body 21 and the light guide unit 30, and the U-shaped opening 43 of the top surface portion 42 is inserted into the engaging space 35 of the light guide unit 30, and the U-shaped groove 44 is embedded. At the annular flange 25 of the light guiding unit 30, the receiving body 21 and the light guiding unit 30 are brought into a combined but not fastened state by the engaging member 40, and the light guide is guided. The unit 30 can make a slight plane displacement, and the light guide unit 30 can adjust the optical plane by an X and Y axis moving platform (not shown) until the optical fiber of the light guide unit 30 and the light emitting unit 31 The optical signal is coupled to the optical alignment, and finally, the engaging member 40, the receiving body 21 and the light guiding unit 30 are connected through an adhesive, as shown in FIG. 2.
以上所述內容僅為本案一較佳實施例之說明,而非用以對本發明作任何限制者。任何熟諳此技藝者可能利用上揭技術內容加以變更或修飾為其他實施例而仍不脫離本發明之精神與範疇,本發明範圍僅由以下申請專利範圍限制之。 The above description is only a description of a preferred embodiment of the present application, and is not intended to limit the present invention in any way. Anyone skilled in this art may use the disclosed technical content to modify or modify other embodiments without departing from the spirit and scope of the present invention. The scope of the present invention is limited only by the scope of the following patent applications.
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TW105142602A TWI619981B (en) | 2016-12-22 | 2016-12-22 | Optical transceiver module of solderless light guiding unit |
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JP2008051981A (en) * | 2006-08-23 | 2008-03-06 | Fujitsu Ltd | Optical receptacle |
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TW201033665A (en) * | 2009-03-04 | 2010-09-16 | Apac Opto Electronics Inc | Three-directional optical assembly |
TWI490581B (en) * | 2009-10-14 | 2015-07-01 | Truelight Corp | Two-piece casing structure of transceiver optical sub-assembly and fabrication method thereof |
CN203014824U (en) * | 2012-12-26 | 2013-06-19 | 厦门三优光电股份有限公司 | High-sensitivity plug-insert type bi-directional transmitter optical subassembly for gigabit-capable passive optical network |
TWM551699U (en) * | 2016-12-22 | 2017-11-11 | Optoway Tech Incorporation | Soldering-free light guide unit of optical transceiver submodule |
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