TWI688793B

TWI688793B - Optical multiplexer/demultiplexer

Info

Publication number: TWI688793B
Application number: TW107119602A
Authority: TW
Inventors: 簡佐翰
Original assignee: 簡佐翰
Priority date: 2018-06-07
Filing date: 2018-06-07
Publication date: 2020-03-21
Also published as: TW202001299A

Abstract

一種光合波/分波多工器包括一反射鏡片；多數濾波片；及一多工器本體，包含一上基板及一下基板，將該反射鏡片及多數濾波片連結在該上、下基板之間，使該上、下基板之間形成有一腔室；當多種不同波長的光信號進入該光合波/分波多工器後，使各該光信號在該腔室被加以合併/分離。 An optical multiplexing/demultiplexing multiplexer includes a reflective lens; most filters; and a multiplexer body, including an upper substrate and a lower substrate, connecting the reflective lens and most filters between the upper and lower substrates, A cavity is formed between the upper and lower substrates; when multiple optical signals of different wavelengths enter the optical multiplexing/demultiplexing multiplexer, the optical signals are combined/separated in the cavity.

Description

光合波/分波多工器 Optical multiplexer/demultiplexer

本發明係關於一種光纖傳送系統之光合波/分波多工器。 The invention relates to an optical multiplexing/demultiplexing multiplexer of an optical fiber transmission system.

就目前的光纖傳送系統係藉由光合波/分波原理，使不同波長分享單一光纖，在同一條光纖中傳輸多種不同波長光信號，每一訊號以自身不同的光波長載送。 The current optical fiber transmission system uses the principle of optical multiplexing/demultiplexing to make different wavelengths share a single optical fiber and transmit multiple optical signals of different wavelengths in the same optical fiber, and each signal is carried at its own different optical wavelength.

通常光合波/分波原理是利用光合波/分波多工器作為光纖傳輸方式，如圖1所示，該光合波/分波多工器40包括有一Z形塊(Z-BLOCK)41，係以光學玻璃製成，其具有一上端面及一下端面，該上端面鍍有一反射薄膜42及一抗反射薄膜43；該下端面安裝有多數濾波片44a、44b、44c、44d；該光合波/分波多工器40以分波多工器，且以四種不同波長的光信號作為實施例說明，當外部傳送具有λ1~λ4波長之光信號在光合波/分波多工器40被加以分離，其是利用反射薄膜42的反射送到各該濾波片44a、44b、44c、44d進行分波，使分離出λ1~λ4不同波長。 Generally, the principle of optical multiplexing/demultiplexing is to use optical multiplexing/demultiplexing as the optical fiber transmission method. As shown in FIG. 1, the optical multiplexing/demultiplexing 40 includes a Z-block (Z-BLOCK) 41, which is based on Made of optical glass, it has an upper end surface and a lower end surface, the upper end surface is coated with a reflective film 42 and an anti-reflection film 43; the lower end surface is installed with a plurality of filters 44a, 44b, 44c, 44d; The multiplexer 40 uses a demultiplexer and uses four optical signals with different wavelengths as an example. When an externally transmitted optical signal with a wavelength of λ1~λ4 is separated in the optical multiplexer/demultiplexer 40, it is The reflection of the reflective film 42 is sent to each of the filters 44a, 44b, 44c, and 44d for demultiplexing to separate λ1 to λ4 different wavelengths.

惟該Z形塊41的上端面必需研磨成平整的光滑面才能進行鍍膜，致使加工成本非常昂貴，而使該光合波/分波多工器40不具有市場競爭力，因此，目前需要一種成本低且加工容易之多工器。 However, the upper end surface of the Z-shaped block 41 must be ground into a smooth surface to be coated, which makes the processing cost very expensive and makes the photosynthesis/demultiplexing more The tool 40 is not competitive in the market, so there is a need for a multiplexer with low cost and easy processing.

另外，光信號必需通過該Z形塊41用以進行光信號傳送，因而造成光信號的損失，此缺失需要加以解決。 In addition, the optical signal must pass through the Z-shaped block 41 for optical signal transmission, thus causing loss of the optical signal, and this deficiency needs to be resolved.

本發明的主要目的在於提供一種可降低加工成本之光合波/分波多工器。 The main object of the present invention is to provide an optical multiplexing/demultiplexing multiplexer which can reduce the processing cost.

本發明的次要目的在於提供一種可降低光信號損失之光合波/分波多工器。 The secondary object of the present invention is to provide an optical multiplexing/demultiplexing multiplexer capable of reducing optical signal loss.

為達到上述目的及功效，本發明光合波/分波多工器包括一反射鏡片；多數濾波片；及一多工器本體，包含一上基板及一下基板，將該反射鏡片及多數濾波片連結在該上、下基板之間，使該上、下基板之間形成有一腔室；當多種不同波長的光信號進入該光合波/分波多工器後，各該光信號在該腔室被加以合併/分離。 In order to achieve the above objectives and effects, the optical multiplexing/demultiplexing multiplexer of the present invention includes a reflective lens; most filters; and a multiplexer body, including an upper substrate and a lower substrate, connecting the reflective lens and most filters to Between the upper and lower substrates, a cavity is formed between the upper and lower substrates; when multiple optical signals of different wavelengths enter the optical multiplexing/demultiplexing multiplexer, the optical signals are combined in the cavity /Separation.

本發明多工器本體更包含有二導板，分別連結在該上、下基板且相互對應，各該導板的厚度比該反射鏡片及該多數濾波片薄，各該導板具有一前端面及一後端面，使該反射鏡片藉由該前端面得以快速地固定在該上、下基板；各該濾波片藉由該後端面得以快速固定在該上、下基板。 The multiplexer body of the present invention further includes two guide plates, which are respectively connected to the upper and lower substrates and correspond to each other. The thickness of each guide plate is thinner than that of the reflective lens and the plurality of filters, and each of the guide plates has a front end surface And a rear end surface, so that the reflective lens can be quickly fixed on the upper and lower substrates through the front end surface; each filter can be quickly fixed on the upper and lower substrates through the rear end surface.

為了進一步瞭解本發明之特徵及技術內容，請詳細參閱以下有關本發明之詳細說明與附圖，然而所附圖式僅供參考與說明用，而並非用來對本發明做任何限制者。 In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention in detail, but the drawings are for reference only It is used for explanation, not for any limitation of the present invention.

(習知技術) (Conventional Technology)

40‧‧‧光合波/分波多工器 40‧‧‧synthetic multiplexer/demultiplexer

41‧‧‧Z形塊 41‧‧‧Z block

42‧‧‧反射薄膜 42‧‧‧Reflective film

43‧‧‧抗反射薄膜 43‧‧‧Anti-reflection film

44a、44b、44c、44d‧‧‧濾波片 44a, 44b, 44c, 44d ‧‧‧ filter

λ1~λ4‧‧‧波長 λ1~λ4‧‧‧wavelength

(本發明) (this invention)

10‧‧‧光合波/分波多工器 10‧‧‧synthetic multiplexer/demultiplexer

11‧‧‧多工器本體 11‧‧‧Multiplexer body

12‧‧‧上基板 12‧‧‧Upper board

13‧‧‧下基板 13‧‧‧Lower substrate

14‧‧‧腔室 14‧‧‧ chamber

15‧‧‧光入口 15‧‧‧Light entrance

16‧‧‧導板 16‧‧‧Guide plate

17‧‧‧前端面 17‧‧‧Front face

18‧‧‧後端面 18‧‧‧ Rear face

20‧‧‧反射鏡片 20‧‧‧Reflective lens

30a、30b、30c、30d‧‧‧濾波片 30a, 30b, 30c, 30d ‧‧‧ filter

λ1~λ4‧‧‧波長 λ1~λ4‧‧‧wavelength

圖1為傳統光合波/分波多工器之平面圖。 FIG. 1 is a plan view of a conventional optical multiplexer/demultiplexer.

圖2為本發明之立體圖。 2 is a perspective view of the present invention.

圖3為本發明之立體分解圖。 3 is an exploded perspective view of the present invention.

圖4顯示本發明反射鏡片及多數濾波片以一預定間距連結在下基板的俯視圖。 FIG. 4 shows a top view of the reflective lens and most filters of the present invention connected to the lower substrate at a predetermined pitch.

圖5為本發明之前視圖。 Figure 5 is a front view of the present invention.

圖6為本發明之右側視圖。 6 is a right side view of the present invention.

圖7為本發明之光路圖。 7 is a diagram of the optical path of the present invention.

請參閱圖2至圖7所示，本發明光合波/分波多工器10包括有一多工器本體11、一反射鏡片20、及多數濾波片30a、30b、30c、30d。該多工器本體11包含一上基板12及一下基板13；該反射鏡片20及多數濾波片30a、30b、30c、30d連結在該上、下基板12、13之間，使該上、下基板12、13之間形成有一腔室14。當外部傳送多種不同波長的光信號進入該光合波/分波多工器10後，將使各該光信號在該腔室14被加以合併/分離，成為單一光束(合波)或分離出不同的波長(分波)。以光分波多工器而言，其是利用該反射鏡片20反射至各該濾波片30a、 30b、30c、30d進行分波，使分離出不同波長的光信號。 Please refer to FIG. 2 to FIG. 7, the optical multiplexing/demultiplexing multiplexer 10 of the present invention includes a multiplexer body 11, a reflective lens 20, and a plurality of filters 30a, 30b, 30c, 30d. The multiplexer body 11 includes an upper substrate 12 and a lower substrate 13; the reflective lens 20 and a plurality of filters 30a, 30b, 30c, 30d are connected between the upper and lower substrates 12, 13 to make the upper and lower substrates A chamber 14 is formed between 12,13. When multiple optical signals of different wavelengths are externally transmitted into the optical multiplexing/demultiplexing multiplexer 10, each of the optical signals will be combined/separated in the chamber 14 to become a single beam (combined) or separate different Wavelength (split wave). In terms of the optical demultiplexer, it uses the reflective lens 20 to reflect to each filter 30a, 30b, 30c, and 30d perform demultiplexing to separate optical signals of different wavelengths.

如圖4所示，該反射鏡片20與多數濾波片30a、30b、30c、30d之間以一預定間距且相同的斜度固定在該下基板13上，隨後再將該上基板12連結在該反射鏡片20及多數濾波片30a、30b、30c、30d上，如圖5所示。 As shown in FIG. 4, the reflective lens 20 and the majority of filters 30a, 30b, 30c, 30d are fixed on the lower substrate 13 at a predetermined pitch and the same slope, and then the upper substrate 12 is connected to the The reflective lens 20 and the majority of filters 30a, 30b, 30c, and 30d are shown in FIG.

如圖6所示，該反射鏡片20的長度比該下基板13短，因此，在該反射鏡片20末端與該上、下基板12、13之間形成一光入口15。 As shown in FIG. 6, the length of the reflective lens 20 is shorter than that of the lower substrate 13. Therefore, a light entrance 15 is formed between the end of the reflective lens 20 and the upper and lower substrates 12 and 13.

該多工器本體11更包含有二導板16，其分別連結於上、下基板12、13上且相互對應，各該導板16的厚度比該反射鏡片20及多數濾波片30a、30b、30c、30d薄。各該導板16具有一前端面17及一後端面18，該前端面及該後端面18為斜邊且相互平行，並使該反射鏡片20藉由該前端面17得以快速地固定在該上、下基板12、13；各該濾波片30a、30b、30c、30d藉由該後端面18得以快速固定在該上、下基板12、13。 The multiplexer body 11 further includes two guide plates 16, which are respectively connected to the upper and lower substrates 12, 13 and correspond to each other. The thickness of each guide plate 16 is greater than that of the reflective lens 20 and the majority of filters 30a, 30b, 30c and 30d are thin. Each guide plate 16 has a front end surface 17 and a rear end surface 18, the front end surface and the rear end surface 18 are slanted and parallel to each other, and the reflective lens 20 is quickly fixed on the front surface 17 by the front end surface 17 , The lower substrates 12, 13; the filter plates 30a, 30b, 30c, 30d are quickly fixed to the upper and lower substrates 12, 13 by the rear end surface 18.

如圖5、圖6及圖7所示，本發明光合波/分波多工器10以分波多工器，且以四種不同波長作為實施例說明；當外部傳送λ1~λ4波長的光信號從該光合波/分波多工器10的光入口15進入該腔室14後，即在該光合波/分波多工器10被加以分離。在光合波/分波多工器10的濾波片30a中，僅具波長λ1的光信號通過被分離，其他光信號卻被濾波片30a反射至反射鏡片20，並經由該反射鏡片20將其他光信號反射送到濾波片30b。在濾波片30b中，則僅有波長λ2的光信號通過被分離，其他光信號被濾波片30b反射至反射鏡片20，並經由該反射鏡片20將其他光信號反射送到濾波片30c。在濾波片30c中，則僅有波長λ3的光信號通過被分離，λ4的光信號被濾波片30c反射至反射鏡片20，並經由該反射鏡片20將λ4光信號反射送到濾波片30d，並使波長λ4的光信號通過。由上述可知，各該濾波片隨著各波長將光信號予以分離，由四個濾波片分離出四種光信號。 As shown in FIG. 5, FIG. 6 and FIG. 7, the optical multiplexing/demultiplexing multiplexer 10 of the present invention uses a demultiplexing multiplexer and four different wavelengths as an example; when externally transmitting optical signals of λ1~λ4 wavelength After the light inlet 15 of the optical multiplexing/demultiplexing multiplexer 10 enters the chamber 14, the optical multiplexing/demultiplexing multiplexer 10 is separated. In the filter 30a of the optical multiplexing/demultiplexing device 10, only the optical signal with the wavelength λ1 is separated, and other optical signals are reflected by the filter 30a to the reflective lens 20, and the other optical signals are reflected through the reflective lens 20 The reflection is sent to the filter 30b. In filter In the wave plate 30b, only the optical signal of the wavelength λ2 is separated, and the other optical signals are reflected by the filter 30b to the reflective lens 20, and the other optical signals are reflected to the filter 30c via the reflective lens 20. In the filter 30c, only the optical signal of the wavelength λ3 is separated, the optical signal of λ4 is reflected by the filter 30c to the reflecting lens 20, and the λ4 optical signal is reflected to the filter 30d via the reflecting lens 20, and Pass the optical signal of wavelength λ4. As can be seen from the above, each of the filters separates optical signals with each wavelength, and four optical signals are separated by four filters.

總之，本發明多工器本體11並非以光學材料製成；最佳的，該上基板12、該下基板13、及導板16可選用陶瓷、塑膠或金屬材質所製成，可大幅降低材料成本及加工成本，而具有市場競爭力；以及各該光信號係在該腔室14中直接傳送，並未通過任何介質，因此可防止光信號的損失，以克服現有技術存在的缺失。 In short, the multiplexer body 11 of the present invention is not made of optical materials; preferably, the upper substrate 12, the lower substrate 13, and the guide plate 16 can be made of ceramic, plastic or metal materials, which can greatly reduce the material The cost and processing cost are competitive in the market; and each of the optical signals is directly transmitted in the chamber 14 without passing through any medium, so the loss of optical signals can be prevented to overcome the deficiencies of the prior art.

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 content is only a description of a preferred embodiment of this case, and is not intended to limit the present invention. Anyone skilled in the art may use the disclosed technical content to change or modify it into 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.

11‧‧‧多工器本體 11‧‧‧Multiplexer body

12‧‧‧上基板 12‧‧‧Upper board

13‧‧‧下基板 13‧‧‧Lower substrate

16‧‧‧導板 16‧‧‧Guide plate

17‧‧‧前端面 17‧‧‧Front face

18‧‧‧後端面 18‧‧‧ Rear face

20‧‧‧反射鏡片 20‧‧‧Reflective lens

30a、30b、30c、30d‧‧‧濾波片 30a, 30b, 30c, 30d ‧‧‧ filter

Claims

一種光合波/分波多工器，其包括：一反射鏡片；多數濾波片；及一多工器本體，包含一上基板、一下基板及二導板，將該反射鏡片及多數濾波片以一預定間距連結在該上、下基板之間，使該上、下基板之間形成有一腔室；該二導板，分別連結在該上、下基板且相互對應，各該導板的厚度比該反射鏡片及該多數濾波片薄；各該導板具有一前端面及一後端面，使該反射鏡片藉由該前端面得以快速地固定在該上、下基板之間；各該濾波片藉由該後端面得以快速固定在該上、下基板之間；當多種不同波長的光信號進入該光合波/分波多工器後，將使各該光信號在該腔室被加以合併/分離。 An optical multiplexing/demultiplexing multiplexer, which includes: a reflective lens; a majority filter; and a multiplexer body, including an upper substrate, a lower substrate, and two guide plates, the reflective lens and the majority filter are predetermined The pitch is connected between the upper and lower substrates, so that a cavity is formed between the upper and lower substrates; the two guide plates are respectively connected to the upper and lower substrates and correspond to each other, each of the guide plates is thicker than the reflection The lens and the plurality of filters are thin; each of the guide plates has a front end surface and a rear end surface, so that the reflective lens can be quickly fixed between the upper and lower substrates through the front end surface; The rear surface can be quickly fixed between the upper and lower substrates; when multiple optical signals with different wavelengths enter the optical multiplexing/demultiplexing multiplexer, each of the optical signals will be combined/separated in the chamber.