經濟部智慧財產局員工消費合作社印製 561718 A7Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 561718 A7
【本發明之背景】 光收發器廣泛運用於光纖通信之領域，近年來受到大 眾之矚目。而傳統之光收發器，請參照第4圖，多使用一 分光鏡6，透鏡7以及光偵測器4，雷射光源5。而由於使 用透鏡7，分光鏡6聚焦及分光，因而受限於聚焦焦距，直 行之光徑，傳統分光鏡6之尺寸縮小有極限，而且必須準 確地使光徑對位，製作複雜，重量體積均大，不適用於目 前光通信元件輕薄短小之需求，因此極需要一種高效率， 體積小，結構簡單，重量輕之單一對外光纖之雙波長光收 發器。 發明人爰因於此，本於積極發明之精神，亟思一種可 以解決上述問題之「單一對外光纖之雙波長光收發器」， 幾經研究實驗終至完成此項嘉惠世人之發明。 【本發明之概述】 本發明之主要目的係在提供一種單一對外光纖之雙波 長光收發器，俾能減少光收發器之重量，並簡化光收發器 之結構及製程，與縮小光收發器之體積，增加光收發器使 用之空間彈性。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱）[Background of the present invention] Optical transceivers are widely used in the field of optical fiber communications, and have attracted much attention in recent years. For the conventional optical transceiver, please refer to FIG. 4, which uses a beam splitter 6, a lens 7, a light detector 4, and a laser light source 5. Because the lens 7 and the beam splitter 6 are used for focusing and beam splitting, they are limited by the focal length and the straight path of light. The size of the traditional beam splitter 6 is limited, and the beam path must be accurately aligned. They are both large and unsuitable for the current requirements of light, thin, and short optical communication components. Therefore, a high-efficiency, small-sized, simple structure, and lightweight single-wavelength dual-wavelength optical transceiver is required. Because of this, the inventor, in the spirit of active invention, urgently thought of a "dual-wavelength optical transceiver with a single external optical fiber" that could solve the above problems. After several research experiments, he finally completed this invention that benefits the world. [Summary of the invention] The main purpose of the invention is to provide a dual-wavelength optical transceiver with a single external optical fiber, which can reduce the weight of the optical transceiver, simplify the structure and manufacturing process of the optical transceiver, and reduce the size of the optical transceiver. Volume, increase the space flexibility of the optical transceiver. This paper size applies to China National Standard (CNS) A4 (210 X 297 public love)
^-----------------^^1 (請先閲讀背面之注意事項再填寫本頁) 五、發明說明（义） 為達成上述之目的，本發明單一對外光纖之雙波長光 收發器，係配合一外部輸入之第一波長光訊號源，該雙波 長光收發器主要包括：一光纖頭套（GlassFerrule)， 係為一内含第一光纖與第二光纖之玻璃套管，光纖頭套並 具有一端面；其中第一光纖與第二光纖連接至光纖頭套端 面；一漸變折射率鏡片（GRIN Lens)，具有一第一端 面與一第二端面，且第一端面係與光纖頭套端面位於同一 側，一滤光反射單元，係固設於該漸變折射率鏡片之第二 端面，以使第一波長之光訊號透射濾光反射單元，並反射 非第一波長之光訊號至漸變折射率鏡片；一光偵測器，係 位於濾光反射單元之一側，以偵測穿透濾光反射單元之第 一波長之光訊號；以及一雷射光源，係連接第二光纖之一 端，以提供一第二波長之光訊號；其中第二波長不等於第 一波長，第一光纖連接外部輸入之光訊號源，並用來對外 輸入或輸出光訊號；第二波長之光訊號之光路係由第二光 纖至漸變折射率鏡片，並經由濾光反射單元反射回漸變折 射率鏡片，再經由漸變折射率鏡片折射至第一光纖輸出。 本發明單一對外光纖之雙波長光收發器，係配合一外 部輸入之第一波長光訊號源，該雙波長光收發器主要包 括：一光纖頭套（Glass Ferrule)，係為一内含第一光 纖與第二光纖之玻璃套管，玻璃套管並具有一端面；其中 第一光纖與第二光纖連接於頭套端面；一漸變折射率鏡片 (GRIN Lens)，具有一第一端面與一第二端面，且第 5 五、發明說明（3 ) I端面係與域頭㈣面位__側；1光反射單元， 係固设於渐變折射率鏡片之第二端面，以反射第一波長光 訊叙漸變折射率鏡片；一雷射光源，係位於爐光反射單 :之一側，以提供—穿透漉光反射單元之第二波長光訊 唬，以及-光價測器，係連接於第二光纖之一端；其中第 二波長不等於第一波長；第一光纖連接外部輸入之第一波 長光訊號源，並用來對外輸入或輸出光訊號；第一波長光 訊號經由漸變折射率鏡片折射至第二光纖，俾供光偵測器 進行4貞別’第一波長光訊號從滤光反射單元穿射，並經由 漸變折射率鏡片折射至第一光纖輸出。 由於本發明構造新穎，能提供產業上利用，且確有增 進功效，故依法申請發明專利。 【圖式簡單説明】 第1 A圖係本發明單一對外光纖之雙波長光收發器較佳例 之示意圖。 第1B圖係本發明單一對外光纖之雙波長光收發器較佳例 之另一示意圖。 第2A圖係本發明單一對外光纖之雙波長光收發器另一較 佳例之示意圖。 第2B圖係本發明單一對外光纖之雙波長光收發器另一較 佳例之另一示意圖。 第3 A圖係本發明·單一對外光纖之雙波長光收發器又一較 佳例之TF意圖。 6 本紙張尺度適用中國國豕標準（CNS)A4規格（2〗G X 297公爱） 五、發明說明（+) 第3 B圖係本發明單一對外光纖之雙波長光收發器又一較 佳例之另一示意圖。 弟4圖係習知單一對外光纖之雙波長光收發器之示意圖。 【圖號説明】 光纖頭套 1 遽光反射鏡 3 光偵測器 4 分光鏡 6 漸變折射率鏡片 2，2， 濾光反射物質 3， 雷射二極體 5 透鏡 7 【較佳具體實施例之詳細説明】 本發明之濾光反射單元無限制，較佳為一黏著於漸變 折射率鏡片（GRIN Lens)濾光片或係藉沈積或塗佈 (Ceding)於漸變折射率鏡片（（JRm Lens)表面之滤光 材料層，取佳為滤光反射單元係利用紫外光硬化膠（u v _ Glue)或熱固膠（Heat_Curing Glue)固設於漸變折射率 銃片。第二光纖與光偵測器或雷射光源連接之方法無限 制，較佳為第二光纖係以熔接方式與雷射光源或光偵測器 連接。本發明之漸變折射率鏡片與光纖頭套相對位置無限 制，較佳為漸變折射率鏡片與光纖頭套分離不接觸。本發 明 < 第二光纖連接之光偵測器或雷射光之位置無限制，因 為利用第一光纖連接，其與光纖頭套之距離及位置無限、 制，較佳為光偵測器及雷射光源成相互垂直之排列。第二 7 561718 A7 -----— -__B7_____ 五、發明說明（5 ) ~ ' 光纖《長度無限制，光纖可以藉由圈繞或弯曲而調整光偵 測器或雷射光源之位置。第二光纖繞彎之圈數無限制，較 佳為半圈。適用於本發明之光偵測器或雷射光源無限制， 任何光偵測器或雷射光源均可以適用於本發明。 為能讓貴審查委員能更瞭解本發明之技術内容，特 舉單-對外光纖之雙波長光收發器較佳具體實施例説明如 下。 請參照第1圖，第1A圖為本發明單一對外光纖之雙波 長光收發器之一較佳例之示意圖。本發明之單一對外光纖 之雙波長光收發器為包含一光纖頭套丨，一漸變折射率鏡 片2，一濾光反射鏡3，一光偵測器4，以及一雷射光二極 體5。光纖頭套丨係為一内含兩光纖之玻璃套管，該玻璃套 管具有一頭套斜面；其中二光纖係連接於頭套斜面。其中 之光纖’係連接至一外來之光纖或外接之光訊號源。而 另一光纖，則為連接雷射二極體5。而光纖頭套1之一側， 為一頭套斜面，頭套斜面之旁，設置有漸變折射率鏡片 2 〇 漸變折射率鏡片2與光纖頭套1之間有一空氣缺口（間 隙），即光纖頭套1與漸變折射率鏡片2之間，不直接連 接。漸變折射率鏡片2相反於光纖頭套1之另一側平面，黏 附有一滤光反射鏡3，用以透射特定預設波長之光（又 i)，並能反射其他非預設波長之光。該透射濾光反射鏡3 之特定波長之光（λ 1 )將會被光偵測器4偵測到，使得光 8 本紙張尺度適用中關家標準（CNS)A4規格（210 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) .»裝·-------訂·-------- 經濟部智慧財產局員工消費合作社印製 1561718 A7 五、發明說明（6 ) •偵測器4能偵測由外接光纖傳來之光信號。而連接於光纖 頭套1之另一光纖，則以熔接之方式連接於一雷射二極體 5。雷射二極體5係發出另一特定波長之光（λ2)，使得 孩另一特定波長之光訊號（λ2)經由另一光纖而進入漸 變折射率鏡片2，繼而經由濾光反射鏡3反射，漸變折射率 鏡片2折射後，進入將光信號傳輸至外接之光纖。 如此’本發明之單一對外光纖之雙波長光收發器，可 以藉由各單元之組合，使外來之光信號，由光纖經由光纖 頭套1之輸入，漸變折射率鏡片2之折射，穿透濾光反射鏡 3進入光偵測器4而得以偵測外界之光信號，進而解讀。也 可以藉由雷射二極體5發出與接收端光偵測器4不同波長之 光，經由漸變折射率鏡片2折射，濾光反射鏡3之反射，進 入光纖頭套1連接外界之光纖，而將光信號傳送出去，而 完成光信號收發之功能。 第1Β圖係與上述較佳例之作動情形相同，僅有光纖 頭套1 ’與漸變折射率鏡片2，之端面改為垂直面。 本較佳例之單一對外光纖之雙波長光收發器，較之以 往之光收發器結構更為簡單，重量更輕，體積可以縮的更 智 慧 財 產 局 員 工 消 費 小，而且製作簡單，較之以往之單一對外光纖之雙波長光 收發器，性能優異顯而易見。 請參照第2Α圖，第2Α圖為本發明單一對外光纖之雙 波長光收發器之另一較佳例之示意圖。本較佳例之單一對 外光纖之雙波長光收發器也是包含一光纖頭套丨，一漸變 社 印 本紙張尺度適用中國國家標準（CNS)A4規格⑵G χ 297公爱） 561718 經濟部智慧財產局員工消費合作社印製^ ----------------- ^^ 1 (Please read the notes on the back before filling out this page) 5. Description of the invention (meaning) In order to achieve the above purpose, the present invention is single The external dual-wavelength optical transceiver is a first-wavelength optical signal source with an external input. The dual-wavelength optical transceiver mainly includes: a fiber headgear (GlassFerrule), which includes a first optical fiber and a second optical fiber. A glass tube, an optical fiber head cover and an end surface; wherein the first optical fiber and the second optical fiber are connected to the end surface of the optical fiber head cover; a GRIN lens having a first end surface and a second end surface, and the first The end face is located on the same side as the end face of the optical fiber hood. A filter reflection unit is fixed on the second end face of the graded-refractive index lens so that the light signal of the first wavelength passes through the filter reflection unit and reflects the non-first wavelength A light signal to a gradient index lens; a light detector located on one side of the filter reflection unit to detect a light signal of the first wavelength penetrating the filter reflection unit; and a laser light source connected One end of the second fiber to provide A second wavelength of optical signal; where the second wavelength is not equal to the first wavelength, the first optical fiber is connected to an externally input optical signal source and used to externally input or output an optical signal; the optical path of the second wavelength of optical signal is controlled by the second The optical fiber reaches the graded-index lens, and is reflected back to the graded-index lens through the filter reflection unit, and then refracted to the first optical fiber output through the graded-index lens. The dual-wavelength optical transceiver of a single external optical fiber of the present invention is matched with an externally inputted first-wavelength optical signal source. The dual-wavelength optical transceiver mainly includes: a fiber ferrule, which is a built-in first optical fiber. And the second optical fiber, the glass tube and the glass tube have an end surface; wherein the first optical fiber and the second optical fiber are connected to the end surface of the headgear; a GRIN lens having a first end surface and a second end surface And the fifth and fifth invention description (3) I end face is located on the __ side of the domain head; 1 light reflection unit is fixed on the second end face of the graded index lens to reflect the first wavelength light signal A graded refractive index lens; a laser light source is located on one side of the furnace light reflection unit to provide a second wavelength optical signal that penetrates the chirped light reflection unit, and an optical valence detector is connected to the first One end of two optical fibers; wherein the second wavelength is not equal to the first wavelength; the first optical fiber is connected to an externally inputted first wavelength optical signal source and is used to externally input or output optical signals; the first wavelength optical signal is refracted to First Fibers, to serve for the light detector respectively for 4 Fok 'first wavelength optical signal reflected from the filter unit through radio, and via a graded refractive index lens to a first output fiber. Since the present invention has a novel structure, can provide industrial use, and does have an increasing effect, it applies for an invention patent in accordance with the law. [Brief description of the drawings] Figure 1A is a schematic diagram of a preferred example of a dual-wavelength optical transceiver with a single external optical fiber according to the present invention. Figure 1B is another schematic diagram of a preferred example of a dual-wavelength optical transceiver with a single external optical fiber according to the present invention. Figure 2A is a schematic diagram of another preferred example of a dual-wavelength optical transceiver with a single external optical fiber according to the present invention. Figure 2B is another schematic diagram of another preferred example of the dual-wavelength optical transceiver of a single external optical fiber according to the present invention. Figure 3A is the TF intention of another preferred example of the dual-wavelength optical transceiver of the present invention and a single external optical fiber. 6 This paper size is in accordance with China National Standard (CNS) A4 specification (2) GX 297 public love. 5. Description of the invention (+) Figure 3 B is another preferred example of the dual-wavelength optical transceiver of a single external optical fiber according to the present invention. Another schematic. Figure 4 is a schematic diagram of a conventional dual-wavelength optical transceiver with a single external fiber. [Illustration of the drawing number] Optical fiber head cover 1 遽 light reflector 3 light detector 4 beam splitter 6 graded refractive index lens 2, 2, filter reflective material 3, laser diode 5 lens 7 [preferred embodiment Detailed description] The filter reflection unit of the present invention is not limited. It is preferably a GRIN Lens filter adhered or deposited or coated (CRing) on a gradient index lens (JRm Lens). The surface of the filter material layer, preferably the filter reflection unit is fixed on the gradient refractive index cymbal using ultraviolet curing glue (uv_Glue) or heat curing glue (Heat_Curing Glue). The second optical fiber and the light detector There is no limitation on the method of connecting the laser light source, and it is preferable that the second optical fiber is connected to the laser light source or the photodetector by fusion welding. The relative position of the gradient index lens and the fiber headgear of the present invention is not limited, and the gradient is preferred. The refractive index lens is separated from the fiber headgear without contact. The present invention < the position of the light detector or laser light connected to the second fiber is unlimited, because the first fiber is connected, and the distance and position from the fiber headgear are unlimited. It is better that the light detector and the laser light source are arranged perpendicular to each other. The second 7 561718 A7 ------ -__ B7_____ V. Description of the invention (5) ~ 'Optical fiber "Unlimited length, the optical fiber can be wound around Or bend to adjust the position of the light detector or laser light source. The number of turns of the second optical fiber is unlimited, preferably half. The light detector or laser light source suitable for the present invention is unlimited. Any light detection Both detectors and laser light sources can be applied to the present invention. In order to allow your reviewers to better understand the technical content of the present invention, the preferred specific embodiments of the single-outer optical fiber dual-wavelength optical transceiver are described below. Please refer to FIG. 1 and FIG. 1A are schematic diagrams of a preferred example of a dual-wavelength optical transceiver of a single external optical fiber according to the present invention. The dual-wavelength optical transceiver of a single external optical fiber according to the present invention includes a fiber headband and a graded refractive index Lens 2, a filter reflector 3, a light detector 4, and a laser diode 5. The optical fiber hood is a glass tube containing two optical fibers, and the glass tube has a beveled surface; Two optical fibers are connected to the headgear The optical fiber 'is connected to an external optical fiber or an external optical signal source. The other optical fiber is connected to a laser diode 5. One side of the optical fiber head cover 1 is a bevel of the head cover, and the bevel of the head cover Beside, there is a gradient index lens 2 〇 There is an air gap (gap) between the gradient index lens 2 and the optical fiber head cover 1, that is, the optical fiber head cover 1 and the gradient index lens 2 are not directly connected. The gradient index lens 2 Opposite the plane of the other side of the optical fiber hood 1, a filter reflector 3 is attached to transmit light of a specific preset wavelength (also i), and can reflect light of other non-preset wavelengths. The transmission filter reflects Light of specific wavelength (λ 1) of the mirror 3 will be detected by the light detector 4, making the light 8 this paper size applies the Zhongguanjia Standard (CNS) A4 specification (210 X 297 public love) (Please read first Note on the back, please fill out this page again). »Installation ----------- Ordering ------------ Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 1561718 A7 V. Description of Invention (6) • The detector 4 can detect an optical signal transmitted from an external optical fiber. The other optical fiber connected to the optical fiber headgear 1 is connected to a laser diode 5 by fusion welding. The laser diode 5 emits light of another specific wavelength (λ2), so that the light signal (λ2) of another specific wavelength enters the graded-index lens 2 through another optical fiber, and is then reflected by the filter reflector 3 After the refractive index lens 2 is refracted, it enters the optical signal and transmits it to an external optical fiber. In this way, the dual-wavelength optical transceiver of a single external optical fiber of the present invention can make the external optical signal from the input of the optical fiber through the fiber head cover 1 through the combination of the units, the refractive index of the graded refractive index lens 2 and the penetration filter The reflecting mirror 3 enters the light detector 4 to detect the external light signal, and then interpret it. It is also possible to use a laser diode 5 to emit light of a different wavelength from the receiving end photodetector 4 and refract it through a graded-refractive index lens 2 and reflect it from the filter reflector 3 to enter the fiber headgear 1 to connect the external fiber. The optical signal is transmitted to complete the function of transmitting and receiving the optical signal. Figure 1B is the same as that of the above-mentioned preferred example, except that only the optical fiber head cover 1 'and the graded-refractive-index lens 2 have end surfaces changed to vertical surfaces. The dual-wavelength optical transceiver of a single external optical fiber in this preferred example has a simpler structure, lighter weight, and smaller volume than previous optical transceivers, and the staff of the Intellectual Property Bureau consumes less, and is simpler to manufacture than in the past. The performance of a single dual-wavelength optical transceiver with a single external fiber is excellent. Please refer to FIG. 2A, which is a schematic diagram of another preferred example of a dual-wavelength optical transceiver with a single external optical fiber according to the present invention. The dual-wavelength optical transceiver of a single external optical fiber in this preferred example also includes a fiber headband 丨, a graded printing paper size applicable to the Chinese National Standard (CNS) A4 specification ⑵ G χ 297 public love) 561718 Employees ’Intellectual Property Bureau Printed by a cooperative
C靖先1¾讀背面之¾意事項再壤寫本頁) A7 _____ 五、發明說明（7 ) 折射率鏡片2，一滤光反射鏡3，一光偵測器4，以及一雷 射光二極體5。其與前述之較佳例除光偵測器4與雷射二極 體5<排列位置相對調外，其餘與前一較佳例之雙波長光 收發器結構相同，為本發明單一對外光纖之雙波長光收發 器之另一態樣〇 又 其中之一光纖，係連接一外來之光纖或外接之光訊 號。而另一光纖，則為連接光偵測器4。光纖頭套1之一 側，為一頭套斜面，頭套斜面之旁，設置有漸變折射率鏡 片2。漸變折射率鏡片2與光纖頭套1之間，為一空氣缺 口，光纖頭套1與漸變折射率鏡片2之間，不直接接觸。漸 變折射率鏡片2相反於光纖頭套1之另一側平面，係以紫外 光硬化膠（UV-Glue)或熱固膠（Heat-Curing Glue)黏 附有一濾光反射鏡3，以反射特定預設波長之光（Λ㈠， 並透射其他非特定預設波長之光。 雷射一極體5之位置設置於漸變折射率鏡片2旁，雷射 一極體5發出之光係為另一特定波長之光（几2)，該另一 特定波長之光（λ 2)可通過濾光反射鏡3，並經由漸變折 射率鏡片2折射至與外界連接之光纖。 由外接之光纖傳送至光纖頭套1之光（；Li)，經由漸 變折射率鏡片2之折射，再經由濾光反射鏡3之反射，最後 再由漸變折射率鏡片2折射，而進入連接於光纖頭套1之另 一光纖’該光纖並以熔接之方式連接於光偵測器4。如 此，外來之光信號（λ !)經折射反射後，由光偵測器4偵 10C Jing first read the intentions on the back and write this page) A7 _____ V. Description of the invention (7) Refractive index lens 2, a filter reflector 3, a light detector 4, and a laser diode Body 5. It is the same as the foregoing preferred example except that the photodetector 4 and the laser diode 5 < are arranged in relative positions, the rest is the same as the structure of the dual-wavelength optical transceiver of the previous preferred example, and is the single external optical fiber of the present invention. Another aspect of the dual-wavelength optical transceiver is one of the optical fibers, which is connected to an external optical fiber or an external optical signal. The other optical fiber is connected to the photodetector 4. One side of the optical fiber head cover 1 is a bevel of the head cover, and a gradient index lens 2 is provided beside the bevel of the head cover. There is an air gap between the graded-index lens 2 and the optical fiber hood 1, and there is no direct contact between the fiber-style hood 1 and the graded-index lens 2. The graded-refractive-index lens 2 is opposite to the plane of the other side of the optical fiber head cover 1 and is attached to a filter reflector 3 with UV-Glue or Heat-Curing Glue to reflect a specific preset Wavelength light (Λ㈠, and transmits light of other non-specific preset wavelengths. The position of the laser-pole 5 is set next to the graded-refractive-index lens 2, and the light emitted by the laser-pole 5 is a light of another specific wavelength. The light (a few 2), the light of another specific wavelength (λ 2) can pass through the filter reflector 3 and be refracted to the optical fiber connected to the outside through the graded-refractive index lens 2. The external optical fiber is transmitted to the optical fiber head cover 1 Light (; Li) is refracted by the graded-refractive-index lens 2, then reflected by the filter reflector 3, and finally refracted by the graded-refractive-index lens 2, and enters another optical fiber connected to the optical fiber head cover 1, the fiber and It is connected to the light detector 4 by welding. In this way, after the external light signal (λ!) Is refracted and reflected, the light detector 4 detects 10
本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 561718 經濟部智慧財產局員工消費合作社印^^ A7 五、發明說明（8 ) 測解頃’雷射二極體5之信號經由漸變折射率鏡片2進入外 接之光纖，故而本較佳例之單一對外光纖之雙波長光收發 器，可以藉由各單元之組合，而完成光信號收發之功能。 第2B圖係與第2A圖之作動情形相同，僅有光纖頭套 1’與漸變折射率鏡片2,之端面改為垂直面。 一如前較佳例之單一對外光纖之雙波長光收發器，本 較佳例之單一對外光纖之雙波長光收發器，較之以往之光 收發器結構更為簡單，重量更輕，體積可以縮的更小，而 且製作簡單，具有明顯之優異特性。 本發明之弟3 A圖與第3 B圖，為本發明之又一較佳例 之示思圖，其結構及原理與第一較佳例相同，所不同者僅 為利用塗覆或沈積（C 〇 a t i n g ) —層遽光反射物質3，以代替 濾光反射鏡片3，其效果與第一較佳例相同，為本發明之 另一態樣。 综上所陳，本發明無論就目的、手段及功效，在在均 顯示其迴異於習知技術之特徵，為「光收發器元件」之一 大突破，懇請早日賜准專利，俾嘉惠社會，實感德便。惟 應注意的是，上述諸多實施例僅係為了便於説明而舉例而 已’本發明所王張之權利範圍自應以申請專利範圍所述為 準，而非僅限於上述實施例。 (請先閱讀背面之注意事項再填寫本頁) 裝--------訂--- 11This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 561718 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ^^ A7 V. Description of the invention (8) Test solution 'Laser Diode 5 of 5 The signal enters the external optical fiber through the graded-refractive-index lens 2. Therefore, the dual-wavelength optical transceiver of a single external optical fiber in this preferred example can complete the function of transmitting and receiving optical signals by combining each unit. Fig. 2B is the same as that in Fig. 2A, except that the end faces of the optical fiber headgear 1 'and the gradient index lens 2 are changed to vertical planes. Like the dual-wavelength optical transceiver with a single external fiber in the previous preferred example, the dual-wavelength optical transceiver with a single external fiber in this preferred example has a simpler structure, lighter weight, and smaller volume than the previous optical transceivers The shrinkage is smaller, and the production is simple, and it has obvious excellent characteristics. Figure 3A and Figure 3B of the present invention are schematic diagrams of another preferred embodiment of the present invention. The structure and principle are the same as those of the first preferred embodiment, and the only difference is the use of coating or deposition ( Coating)-a layer of light reflecting material 3, instead of the filter reflecting lens 3, has the same effect as the first preferred example, and is another aspect of the present invention. In summary, the present invention, regardless of its purpose, means and efficacy, shows its characteristics that are different from the conventional technology. It is a major breakthrough in "optical transceiver components." Society, real sense of virtue. However, it should be noted that the above-mentioned embodiments are merely examples for the convenience of description. The scope of Wang Zhang's rights should be based on the scope of patent application, rather than being limited to the above-mentioned embodiments. (Please read the precautions on the back before filling out this page) Loading -------- Order --- 11
本紙張尺度_中國國家標準（CNS)A4規格g 297公釐）Paper size _ Chinese National Standard (CNS) A4 size g 297 mm)