TWI642980B - Coexistence optical band divider device - Google Patents
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Abstract
本發明係提出一種兼容共存混合型光波段分割裝置，其係包括第一光纖終端及第二光纖終端連接於共存元件、以及光波頻段分割裝置，其係透過第一單光纖連接該共存元件以傳輸不同的光波頻段之光波群至該光波頻段分割裝置，該光波頻段分割裝置係包括：第一聚焦鏡係連接於該第一單光纖，以將該第一單光纖內的光波群轉換為平行光；分光鏡接收來自該第一聚焦鏡的平行光，以將該不同的光波頻段分為具有第一波長頻段與第二波長頻段之光波群，該第一光波長頻段與該第二光波長頻段的光波區段不同且彼此不重疊；第二聚焦鏡接收並聚焦來自該分光鏡的該第一光波長頻段之該光波群於第二單光纖傳輸；及第三聚焦鏡接收並聚焦來自該分光鏡的該第二光波頻段之該光波群於第三單光纖傳輸。 The present invention provides a compatible coexistence hybrid optical band dividing device, which includes a first fiber terminal and a second fiber terminal connected to a coexisting component, and an optical band dividing device, which is connected to the coexisting component through the first single fiber to transmit a light wave group of different light wave bands to the light wave band dividing device, the light wave band dividing device comprising: a first focusing mirror coupled to the first single fiber to convert the light wave group in the first single fiber into parallel light The spectroscope receives the parallel light from the first focusing mirror to divide the different optical wave frequency band into a light wave group having a first wavelength band and a second wavelength band, the first optical wavelength band and the second optical wavelength band The light wave segments are different and do not overlap each other; the second focusing mirror receives and focuses the light wave group from the first optical wavelength band of the beam splitter on the second single fiber; and the third focusing mirror receives and focuses the light from the light splitting The light wave group of the second optical wave band of the mirror is transmitted on the third single optical fiber.
Description
本發明係涉及一種兼容共存混合型光波段分割裝置，其係用於GPON兼容NG-PON2的光傳輸裝置。 The present invention relates to a compatible coexistence hybrid type optical band division device for use in an optical transmission device of GPON compatible NG-PON2.
現有單一光纖在多波長使用方式主要在以WDM光傳輸技術為主，下一代無源光網絡NG-PON2則提出將傳統GPON兼容NG-PON2光系統經共存元件CEx(Co-existence Element)使所有光整合，由單條光纖對外傳輸，此方式僅為組合波長，皆為對光纖內光波傳輸之技術，並未對波長作分波段使用。 The existing single fiber in multi-wavelength mode is mainly based on WDM optical transmission technology, and the next-generation passive optical network NG-PON2 proposes to make the traditional GPON compatible NG-PON2 optical system coexistence component CEx (Co-existence Element) The light is integrated and transmitted by a single fiber. This method is only a combination of wavelengths. It is a technology for transmitting optical waves in an optical fiber. It is not used for wavelength division.
本發明提出一種兼容共存混合型光波段分割裝置，運用薄膜及光柵等技術，利用不同光波長之光反射、光穿透、光耦合、光分離、光單向性等特性，達到將單一光纖作光波頻段分割且獨立傳輸運用之目的，確保在現有光纖網路佈放架構下，以整體網路傳輸做優化，無需遷動系統端之變更，仍能達到和原標準傳輸系統架構一樣的傳輸性能，開發達到具調整傳輸埠機制之光波段分割器轉發設計，可 以多種獨立傳輸模態共用單一光纖作上下行傳輸，但又不會互相干擾之優勢，以有效提升單一光纖之使用效率。 The invention provides a compatible coexistence hybrid optical band segmentation device, which utilizes technologies such as thin film and grating to utilize light reflection, light penetration, optical coupling, optical separation and optical unidirectionality of different light wavelengths to achieve a single optical fiber. The purpose of splitting and independently transmitting the optical wave band ensures that the overall network transmission is optimized under the existing optical network deployment architecture, and the same transmission performance as the original standard transmission system architecture can be achieved without changing the system end. Developed an optical band splitter forwarding design with an adjusted transmission mechanism A plurality of independent transmission modes share a single optical fiber for uplink and downlink transmission, but do not interfere with each other, so as to effectively improve the efficiency of use of a single optical fiber.
為達上述目的，本發明係提供一種兼容共存混合型光波段分割裝置，其係包括：第一光纖終端及第二光纖終端，係分別對應不同的光波頻段之光波群；共存元件，其係連接於該第一光纖終端及該第二光纖終端；以及光波頻段分割裝置，其係透過第一單光纖連接該共存元件以傳輸該不同的光波頻段之該光波群至該光波頻段分割裝置，該光波頻段分割裝置係包括：第一聚焦鏡，其係連接於該第一單光纖，以將該第一單光纖內的光波群轉換為平行光；分光鏡，其係接收來自該第一聚焦鏡的平行光，以將該不同的光波頻段之該光波群分為具有第一波長頻段之光波群與第二波長頻段之光波群，該第一波長頻段與該第二波長頻段的光波區段不同且彼此不重疊；第二聚焦鏡，其係接收並聚焦來自該分光鏡的該第一波長頻段之該光波群於第二單光纖傳輸；及第三聚焦鏡，其係接收並聚焦來自該分光鏡的該第二波長頻段之該光波群於第三單光纖傳輸。 To achieve the above objective, the present invention provides a compatible coexistence hybrid optical band dividing device, which includes: a first optical fiber terminal and a second optical fiber terminal, respectively corresponding to different optical wave groups of light wave groups; coexisting components, which are connected And the optical fiber band dividing device, wherein the optical fiber band dividing device is connected to the coexisting component through the first single optical fiber to transmit the optical wave group of the different optical wave frequency band to the optical wave band dividing device, the optical wave The frequency band dividing device includes: a first focusing mirror coupled to the first single optical fiber to convert the optical wave group in the first single optical fiber into parallel light; and a beam splitter receiving the first focusing mirror Parallel light, wherein the light wave group of the different light wave frequency band is divided into a light wave group having a first wavelength band and a second wave frequency band, wherein the first wavelength band is different from the light wave segment of the second wavelength band Do not overlap each other; a second focusing mirror that receives and focuses the light wave group from the first wavelength band of the beam splitter on the second single fiber; and the third A mirror is provided for receiving and focusing the second wavelength band of the light waves from the dichroic mirror group is transmitted in the third single optical fiber.
前述之兼容共存混合型光波段分割裝置，更包括光功率分歧器，其係連接於該第二單光纖以將來自該第二單光纖的光波群耦合至多個光纖。 The aforementioned compatible coexisting hybrid optical band dividing device further includes an optical power splitter connected to the second single optical fiber to couple the optical wave group from the second single optical fiber to the plurality of optical fibers.
前述之兼容共存混合型光波段分割裝置，更包括光波長分歧器，其係連接於該第三單光纖以將來自該第三單光纖的光波群以波長分波多工耦合至多個獨立光纖。 The foregoing compatible coexisting hybrid optical band dividing device further includes an optical wavelength diplexer coupled to the third single optical fiber to multiplex the optical wave group from the third single optical fiber to a plurality of independent optical fibers by wavelength division multiplexing.
前述之兼容共存混合型光波段分割裝置，更包括另一 個分光鏡接收來自該分光鏡的該第一波長頻段或第二波長頻段以分出第三波長頻段，其中該第三波長頻段的光波區段不同且不重疊於該第一波常頻段或該第二波長頻段；以及第三聚焦鏡，其係接收來自該另一個分光鏡的該第三波長頻段並聚焦為光波群以透過第三單光纖傳輸。 The aforementioned compatible coexisting hybrid optical band dividing device further includes another The splitter receives the first wavelength band or the second wavelength band from the beam splitter to separate the third wavelength band, wherein the optical wave segment of the third wavelength band is different and does not overlap the first wave constant frequency band or the a second wavelength band; and a third focusing mirror that receives the third wavelength band from the other beam splitter and focuses it into a group of light waves for transmission through the third single fiber.
藉由前述的發明，提高單一光纖之傳輸利用率，使對未來綜合性應用之光傳輸，如雲端核心的網路切片的虛擬應用服務，SDN系統點對點傳輸，Cloud-RAN佈建，PON及NG-PON2網路，以及各種無線前行(Fronthaul)與回程(Backhaul)，以期將不同應用傳輸依不同傳輸模式將其獨立於不同光波段進行，使每個幹纜光纖都能達到最高效益，同時對未來多樣性服務能同時收納在同一光纖傳輸，更可將此技術導入現有佈放光纖，將可大大降低運營商佈放成本，有利於新應用與新服務之及時推展。 Through the foregoing invention, the transmission utilization rate of a single optical fiber is improved, and optical transmission for future comprehensive applications, such as virtual application service of network slice of cloud core, point-to-point transmission of SDN system, Cloud-RAN deployment, PON and NG - PON2 network, as well as a variety of wireless forward (Fronthaul) and backhaul (Backhaul), in order to separate different application transmissions according to different transmission modes, so that each trunk cable fiber can achieve the highest efficiency, while For the future diversity service can be stored in the same fiber transmission at the same time, and this technology can be introduced into the existing deployment fiber, which will greatly reduce the deployment cost of operators and facilitate the timely development of new applications and new services.
1‧‧‧GPON光線路終端OLTp 1‧‧‧GPON optical line terminal OLTp
2‧‧‧NG-PON2光線路終端OLTn 2‧‧‧NG-PON2 optical line terminal OLTn
3‧‧‧共存元件CEx 3‧‧‧Communication component CEx
4‧‧‧主幹線光纖f0 4‧‧‧Mainline fiber f 0
5‧‧‧光纖f1 5‧‧‧Fiber f 1
6‧‧‧光纖f2 6‧‧‧Fiber f 2
7‧‧‧分光鏡 7‧‧‧beam splitter
8‧‧‧非球面聚焦鏡L0 8‧‧‧Aspherical focusing mirror L 0
9‧‧‧非球面聚焦鏡L1 9‧‧‧Aspherical focusing mirror L 1
10‧‧‧非球面聚焦鏡L2 10‧‧‧Aspherical focusing mirror L 2
11‧‧‧1xN光功率分歧器 11‧‧‧1xN optical power splitter
12‧‧‧1xM光波長分歧器 12‧‧‧1xM optical wavelength splitter
13‧‧‧GPON光網絡單元ONU 13‧‧‧GPON Optical Network Unit ONU
14‧‧‧NG-PON2光網絡單元ONU 14‧‧‧NG-PON2 Optical Network Unit ONU
15‧‧‧光波頻段分割裝置 15‧‧‧Lightwave band division
16‧‧‧光化交接箱 16‧‧‧Photochemical transfer box
17‧‧‧1xW光功率分歧器 17‧‧‧1xW optical power splitter
請參閱以下有關本發明之詳細說明及其附圖，將可進一步瞭解本發明之技術內容及其目的功效；有關附圖為：第1圖係本發明之兼容共存混合型光波段分割裝置之第一實施例示意圖示意圖。 The following is a detailed description of the present invention and the accompanying drawings, and the technical contents of the present invention and the functions thereof can be further understood. The related drawings are: FIG. 1 is the first embodiment of the compatible coexistence hybrid optical band dividing device of the present invention. A schematic diagram of an embodiment.
第2圖係本發明之兼容共存混合型光波段分割裝置之第二實施例示意圖。 Fig. 2 is a schematic view showing a second embodiment of the compatible coexisting hybrid optical band dividing device of the present invention.
第3圖本發明之第二實施例操作結果示意圖。 Figure 3 is a schematic view showing the results of the operation of the second embodiment of the present invention.
第4a至4b圖係既有架構的光傳輸裝置之示意圖。 Figures 4a through 4b are schematic views of an optical transmission device of an existing architecture.
以下將描述具體之實施例以說明本發明之實施態樣，惟其並非用以限制本發明所欲保護之範疇。 The specific embodiments are described below to illustrate the embodiments of the invention, but are not intended to limit the scope of the invention.
本發明提出一種兼容共存混合型光波段分割裝置，請參閱第1圖之兼容共存混合型光波段分割裝置之第一實施例之示意圖，主要目的將光纖傳輸光波分割成數個光波段，以被動式元件組控制介面，調整光波段分割傳輸之轉發機制，其中被動式元件組控制介面包含分光鏡7(Beam Splitter)B1W，B2W及B3W主要將單光纖內之光波頻段之光波群(λ1W，λ2W，λ3W及λ4W)利用反射及穿透原理將光波頻段分拆，非球面聚焦鏡L0W 8，L1W 9，L2+3W 9及L4W 10主要將單光纖(F0W，F1W，F2+3W及F4W)內之光波群轉換成平行光以利分光鏡7處理，同時再將分光鏡7處理完之平行光聚焦至相關之光纖F0W，F1W，F2+3W及F4W。 The present invention provides a compatible coexistence hybrid optical band dividing device. Please refer to the first embodiment of the compatible coexisting hybrid optical band dividing device of FIG. 1 for the purpose of dividing the optical fiber transmission light into several optical bands, and adopting passive components. The group control interface adjusts the forwarding mechanism of the optical band split transmission. The passive component group control interface includes a Beam Splitter B 1W , B 2W and B 3W mainly for the light wave group (λ 1W , in the optical wave band in the single optical fiber. λ 2W , λ 3W and λ 4W ) use the principle of reflection and penetration to split the optical wave band. The aspherical focusing mirrors L 0W 8, L 1W 9, L 2+3W 9 and L 4W 10 mainly use a single fiber (F 0W , The light wave groups in F 1W , F 2+3W and F 4W ) are converted into parallel light for processing by the beam splitter 7 , and at the same time, the parallel light processed by the beam splitter 7 is focused to the associated fiber F 0W , F 1W , F 2 +3W and F4 W.
光波群λ1W，λ2W，λ3W及λ4W下行傳輸進行程序依循下列規則： The downlink transmission of the optical wave groups λ 1W , λ 2W , λ 3W and λ 4W follows the following rules:
1.將單光纖F0W內之下行光波群λ1W，λ2W，λ3W及λ4W；入射至光波頻段分割裝置15，經非球面聚焦鏡L0W，使四組光波群成平行光。 1. The lower optical wave groups λ 1W , λ 2W , λ 3W and λ 4W in the single optical fiber F 0W are incident on the optical wave band dividing device 15 , and the four groups of light wave groups are formed into parallel light by the aspherical focusing mirror L 0W .
2.四組光波群經分光鏡B1W，其中B1W只對下行光波群λ1W作反射，同時讓其餘波長組λ2W，λ3W及λ4W通過，經B1W反射之λ1W透過非球面聚焦鏡L1W聚焦導入單光纖F1W，分出λ1W使用光波段。 2. The four groups of light waves pass through the beam splitter B 1W , wherein B 1W only reflects the descending light wave group λ 1W , while letting the remaining wavelength groups λ 2W , λ 3W and λ 4W pass through the B 1W reflected λ 1W through the aspheric surface The focusing mirror L 1W focuses on the single fiber F 1W and separates the λ 1W using the optical band.
3.其餘波長組λ2W，λ3W及λ4W經分光鏡B2+3W，其中B2+3W只對下行光波群λ2W及λ3W作反射，同時讓波長組λ4W 通過，經B2+3W W反射之λ2W及λ3W透過非球面聚焦鏡L2+3W聚焦導入單光纖F2+3W，分出λ2W及λ3W共同使用之光波段。 3. The remaining wavelength groups λ 2W , λ 3W and λ 4W are transmitted through the beam splitter B 2+3W , wherein B 2+3W only reflects the descending light wave groups λ 2W and λ 3W while allowing the wavelength group λ 4W to pass through B 2 + 3W W λ 2W and the reflecting λ 3W L 2 + 3W focusing introducing a single optical fiber F 2 + 3W through aspheric focusing mirror, and the separated optical band λ 2W λ 3W of common use.
4.通過B2+3W之λ4W，透過非球面聚焦鏡L4W聚焦導入單光纖F4W，分出λ4W使用波段。 4. Through the λ 4W of B 2+3W , the single-fiber F 4W is focused and guided through the aspherical focusing mirror L 4W to separate the λ 4W use band.
光波群λ1W，λ2W，λ3W及λ4W上行傳輸進行程序依循下列規則： The optical wave group λ 1W , λ 2W , λ 3W and λ 4W uplink transmission procedures follow the following rules:
1.將單光纖F1W內之上行光波群λ1W入射至光波頻段分割裝置15，經非球面聚焦鏡L1W使成平行光，經分光鏡B1W反射並透過非球面聚焦鏡L0W聚焦導入單光纖F0W。 1. uplink within a single group of optical fibers F 1W lightwave λ 1W incident light wave band division means 15 via an aspheric focusing mirror into parallel light L 1W so that, by reflecting and focusing the beam splitter B 1W introduced through aspheric focusing lens L 0W Single fiber F 0W .
2.將單光纖F2+3W內之上行光波群λ2W及λ3W入射至光波頻段分割裝置15，經非球面聚焦鏡L2+3W使成平行光，經分光鏡B2+3W反射並通過B1W，透過非球面聚焦鏡L0W聚焦導入單光纖F0W。 2. The upstream optical wave groups λ 2W and λ 3W in the single optical fiber F 2+3W are incident on the optical wave band dividing device 15, and are made into parallel light by the aspherical focusing mirror L 2+3W , and are reflected by the beam splitter B 2+3W and The single optical fiber F 0W is focused through the aspherical focusing mirror L 0W through B 1W .
3.將單光纖F1W內之上行光波群λ1W入射至光波頻段分割裝置15，經非球面聚焦鏡L1W使成平行光，經分光鏡B1W反射並通過分光鏡B2+3W及分光鏡B1W，透過非球面聚焦鏡L0W聚焦導入單光纖F0W。 3. The uplink within a single group of optical fibers F 1W lightwave λ 1W incident light wave band division means 15 via an aspheric focusing mirror into parallel light so that L 1W, and reflected by the dichroic mirror B 1W by spectroscopic and spectroscopic B 2 + 3W a mirror B 1W, through aspheric focusing lens L 0W focusing introducing a single optical fiber F 0W.
上述內容主要目的在於彈性運用兼容共存混合型光波頻段分割裝置15，達到具調整光波段分割傳輸之轉發技術，使光波頻段在光纖中使用更靈活，達到高速低價高頻寬使用率之實體層佈建目的。 The main purpose of the above content is to flexibly use the compatible coexistence hybrid optical band division device 15 to achieve the forwarding technology with the adjusted optical band division transmission, so that the optical wave band is more flexible in the optical fiber, and the physical layer is constructed with high speed, low price, high frequency and wide usage. purpose.
請參閱第2圖之本發明之兼容共存混合型光波段分割裝置之第二實施例示意圖，以及第3圖之前述第二實施例操作結果示意圖，其包含第一光纖終端，其為傳統GPON (Gigabit-capable Passive Optical Network，千兆型無源光網絡)光線路終端OLTp 1，第二光纖終端，其為一或多個NG-PON2(Next-Generation Passive Optical Network 2，下一代無源光網絡第二階段)光線路終端OLTn 2，共存元件CEx(Co-existence Element)3，主幹線光纖f0 4，光波段分割裝置專用二條光纖f1 5及f2 6，分光鏡7，三個非球面聚焦鏡L0 8、L1 9及L2 10，1xN光功率分歧器11，1xM光波長分歧器12，一或多個GPON光網絡單元ONU 13，一或多個NG-PON2光網絡單元ONU 14，光波頻段分割裝置15包括分光鏡7及三個非球面聚焦鏡L0 8、L1 9及L2 10，光化交接箱16包括光波頻段分割裝置15、1xN光功率分歧器11及1xM光波長分歧器12。 Please refer to the second embodiment of the compatible coexistence hybrid optical band dividing device of the present invention in FIG. 2, and the operation result of the foregoing second embodiment in FIG. 3, which includes a first optical fiber terminal, which is a conventional GPON ( Gigabit-capable Passive Optical Network, optical line terminal OLTp 1, second fiber terminal, which is one or more NG-PON2 (Next-Generation Passive Optical Network 2, next-generation passive optical network The second stage) optical line terminal OLTn 2, coexistence element CEx (Co-existence Element) 3, main line fiber f 0 4, optical band division device dedicated two fibers f 1 5 and f 2 6, beam splitter 7, three non Spherical focusing mirrors L 0 8 , L 1 9 and L 2 10, 1xN optical power splitter 11, 1xM optical wavelength splitter 12, one or more GPON optical network units ONU 13, one or more NG-PON2 optical network units The ONU 14, the optical wave band dividing device 15 includes a beam splitter 7 and three aspherical focusing mirrors L 0 8 , L 1 9 and L 2 10 , and the actinic junction box 16 includes a light wave band dividing device 15 , a 1×N optical power splitter 11 and 1xM optical wavelength splitter 12.
以下將對本實施方式進行程序作進一步說明。以局端OLT下指令請用戶端ONU上傳數據資料之傳輸程序依循下列規則： The procedure of this embodiment will be further described below. The transmission procedure for uploading data data by the client ONU is as follows:
1.局端傳統GPON之OLTp 1兼容NG-PON之OLTn 2將各指定波長下行光傳數據資料經共存元件CEx 3將所有下行光波長λd(1480~1500nm)及λmd(1510~1650nm)整合，由單條光纖f0 4對外傳輸，輸出至光化交接箱16，導入光波頻段分割裝置15之非球面聚焦鏡L0 8。 1. The OLTp 1 compatible with NG-PON of the traditional GPON is used to transmit the downlink optical data of each specified wavelength through the coexisting component CEx 3 to all the downstream optical wavelengths λ d (1480~1500nm) and λ md (1510~1650nm). The integration is transmitted from a single optical fiber f 0 4 to the optical communication junction box 16 and introduced into the aspherical focusing mirror L 0 8 of the optical band division device 15.
2.傳統GPON上下行路徑傳輸： 2. Traditional GPON uplink and downlink path transmission:
a.局端之OLTp 1下行光波長λd經CEx 3導入f0 4光纖，進入光波頻段分割裝置15，透過輸出至光化交接箱16，導入光波頻段分割裝置15之非球面聚焦鏡L0 8使成 平行光，波長λd平行光至分光鏡7被反射至非球面聚焦鏡L1 9，透過非球面聚焦鏡L1 9導入光纖f1 5，並經由光纖f1 5連結1xN光功率分歧器11達成與GPON光網絡單元ONU 13互連。 a. The OLTp 1 downstream optical wavelength λ d of the central office is introduced into the f 0 4 optical fiber via CEx 3, enters the optical band division device 15, and is output to the actinic junction box 16 to be introduced into the aspherical focusing mirror L 0 of the optical band division device 15. 8 is made parallel light, the wavelength λ d parallel light is reflected to the spectroscope 7 and reflected to the aspherical focusing mirror L 1 9 , introduced into the optical fiber f 1 5 through the aspherical focusing mirror L 1 9 , and connected to the optical power f 1 5 via the optical fiber f 1 5 The splitter 11 is interconnected with the GPON optical network unit ONU 13.
b.用戶端ONU 13上行光波長λu(1260~1360nm)經1xN光功率分歧器11連結光纖f1 5進入光波頻段分割裝置15，透過非球面聚焦鏡L1 9使成平行光，波長λu平行光至分光鏡7被反射至非球面聚焦鏡L0 8，透過非球面聚焦鏡L0 8聚焦至主幹線光纖f0 4並透過CEx 3與OLTp 1互連。 b. The ONU 13 upstream optical wavelength λu (1260~1360nm) is connected to the optical fiber f 1 5 via the 1xN optical power splitter 11 to enter the optical wave band dividing device 15, and is made into parallel light through the aspherical focusing mirror L 1 9 , and the wavelength λ u the parallel light to the dichroic mirror 7 is reflected to the aspherical focusing lens L 0 8, focus to the main trunk fiber f 0 4 1 and interconnected through CEx 3 and OLTp through aspheric focusing lens L 0 8.
3. NG-PON2上下行路徑傳輸： 3. NG-PON2 uplink and downlink path transmission:
a.局端之OLTn 2下行光波長λmd(1510~1650nm)經CEx 3導入f0 4光纖，進入光波頻段分割裝置15，透過輸出至光化交接箱16，導入光波頻段分割裝置15之非球面聚焦鏡L0 8使成平行光，波長λd平行光直接通過分光鏡7，入射至非球面聚焦鏡L2 10，透過非球面聚焦鏡L2 10導入光纖f2 6，並經由光纖f2 6連結1xM光波長分歧器12達成與NG-PON2光網絡單元ONU 14互連。 a. The OLTn 2 downstream optical wavelength λ md (1510~1650nm) of the central office is introduced into the f 0 4 optical fiber through CEx 3, enters the optical wave band dividing device 15, and is output to the optical communication interface box 16 to be introduced into the optical wave band dividing device 15 The spherical focusing mirror L 0 8 is made into parallel light, and the parallel light of the wavelength λ d passes directly through the beam splitter 7 , is incident on the aspherical focusing mirror L 2 10 , and is introduced into the optical fiber f 2 6 through the aspherical focusing mirror L 2 10 and via the optical fiber f The 2 6-connected 1xM optical wavelength splitter 12 is interconnected with the NG-PON2 optical network unit ONU 14.
b.用戶端NG-PON2光網絡單元ONU 14上行光波長組λmu(1510nm~1650nm)經1xM光波長分歧器12連結光纖f2 6，進入光波頻段分割裝置15，透過非球面聚焦鏡L2 10使成平行光，波長λmu平行光直接通過分光鏡7，入射至非球面聚焦鏡L0 8，透過非球面聚焦鏡L0 8聚焦至主幹線光纖f0 4並透過CEx 3與OLTp 1互連。 b. The user terminal NG-PON2 optical network unit ONU 14 upstream optical wavelength group λ mu (1510 nm ~ 1650 nm) is connected to the optical fiber f 2 6 via the 1xM optical wavelength splitter 12, enters the optical wave band dividing device 15, and passes through the aspherical focusing mirror L 2 10 is made into parallel light, the wavelength λ mu parallel light passes directly through the beam splitter 7, is incident on the aspherical focusing mirror L 0 8, is focused to the main line fiber f 0 4 through the aspherical focusing mirror L 0 8 and passes through CEx 3 and OLTp 1 interconnection.
如此則可完成在同一時間內，現行GPON與NG-PON2 兼容共存光網路在單一光纖傳輸之所有光波長，依實體層不同光網路波長應用需求，可彈性將光波頻段分割成所需適用範圍，用戶端路徑皆能由兼容共存混合型光波分歧器裝置作前置光波頻段區隔，請參閱第4a-4b圖為本發明實施例結果示意圖，GPON上下行光波λd(1480~1500nm)及λu(1260~1360nm)共用光纖f2 6連結1xN光功率分歧器11傳輸，NG-PON2上下行光波λmd(1510~1650nm)及λmu(1510~1650nm)透過光纖6連結1xM光波長分歧器12傳輸。使在每個光分歧器的光波無需增加因共用單一光纖連結光功率分歧器所增加之龐大功率損失。 In this way, the optical wavelengths of the existing GPON and NG-PON2 compatible coexisting optical networks in a single optical fiber transmission can be completed at the same time, and the optical wave frequency band can be elastically divided into required applications according to different optical network wavelength application requirements of the physical layer. The range and the client path can be separated by the pre-existing hybrid optical wave splitter device. Please refer to FIG. 4a-4b for the result of the embodiment of the present invention. The GPON uplink and downlink optical wave λ d (1480~1500 nm) And λ u (1260~1360nm) shared optical fiber f 2 6 is connected to 1xN optical power splitter 11 for transmission, NG-PON2 up and down optical wave λ md (1510~1650nm) and λ mu (1510~1650nm) are connected to optical fiber 6 to connect 1xM optical wavelength The splitter 12 transmits. The light waves at each optical splitter do not need to increase the enormous power loss added by the sharing of a single fiber-coupled optical power splitter.
請參閱第4a圖，係既有架構示意圖，GPON及NG-PON2之所有光波皆需經過傳統1xW光功率分歧器17，本案之GPON所有光波僅經過1xN光功率分歧器，NG-PON2所有光波則只經過1xM光波長分歧器，其中光分歧數W=N+M，故如第4b圖所示的GPON所有光波可少分光功率給M條光分歧，NG-PON2所有光波可少分光功率給N條光分歧。如此可降低所有上下行雷射光源之光功率輸出，減少雷射及系統耗電，同時更降低熱源，使雷射光源及系統運作更穩定。 Please refer to Figure 4a, which is a schematic diagram of the existing architecture. All optical waves of GPON and NG-PON2 need to pass through the traditional 1xW optical power splitter 17. In this case, all the light waves of GPON pass through only 1xN optical power splitter, and all optical waves of NG-PON2 Only after 1xM optical wavelength splitter, where the light divergence number is W=N+M, all the light waves of GPON as shown in Fig. 4b can reduce the optical power to M light divergence, and all light waves of NG-PON2 can split the optical power to N. The light is divided. This can reduce the optical power output of all the uplink and downlink laser light sources, reduce the laser and system power consumption, and at the same time reduce the heat source, making the laser light source and system operation more stable.
本發明係具調整光波頻段分割傳輸之轉發設計機制，具備下列優點： The invention has the following forwarding design mechanism for adjusting the split transmission of the optical wave band, and has the following advantages:
1.本裝置以被動式元件組控制介面之控制機制技術，完全無需遷動系統端之任何變更，為本專利技術應用設計所獨創。 1. The device adopts the control mechanism technology of the passive component group control interface, and does not need any change of the migration system end, which is uniquely designed for the application of the patented technology.
2.每個光波段皆可各自獨立進行其傳輸模式，不會因單光纖導入兼容共存光波頻段分割而需更動原有光網路規格之運作傳輸，有效提升單一光纖之使用效率，使光波段在光纖中使用更靈活，達到高速低價高頻寬使用率之實體層佈建目的。 2. Each optical band can independently carry out its transmission mode, and does not need to change the operation of the original optical network specification due to the single-fiber introduction compatible coexisting optical wave band division, thereby effectively improving the use efficiency of the single optical fiber and enabling the optical band. It is more flexible in fiber optics and achieves the purpose of high-speed, low-cost, high-frequency and wide-bandwidth use.
3.依不同實體層光網路波長應用需求，可彈性變更所需適用波段範圍。 3. According to different physical layer optical network wavelength application requirements, the applicable band range can be flexibly changed.
4.下行與上行可為不同波段範圍，於傳輸交接點可合併或分拆光波段。 4. Downstream and uplink can be different band ranges, and the optical band can be combined or split at the transmission junction.
5.本發明使用被動式組件，無需電源之光介面裝置，可獨立在光化交接箱16內進行，無需遷動系統端之變更，開發達到具彈性調整傳輸埠機制之光波段分割器轉發設計，可共用上下行光纖網路但又不會增加龐大光功率損耗之優勢。 5. The present invention uses a passive component, which does not require a light interface device of the power supply, and can be independently implemented in the actinic transfer box 16, without the change of the migration system end, and develops an optical band splitter forwarding design with an elastic adjustment transmission mechanism. It can share the uplink and downlink fiber network without increasing the advantages of huge optical power loss.
6.本文中所提GPON兼容NG-PON2光系統實施例，其中以光波頻段分割裝置15結合1xN光功率分歧器1xM與光波長分歧器使成為多光波段，使得點對多點及點對點之二種光傳輸模式可同時獨立於單一光纖傳輸而不互相干擾及重疊，使成兼容共存混合型光波分歧器裝置之設計。 6. The GPON compatible NG-PON2 optical system embodiment mentioned in the present invention, wherein the optical band division device 15 is combined with the 1xN optical power splitter 1xM and the optical wavelength splitter to become a multi-optical band, so that the point-to-multipoint and point-to-point two The optical transmission mode can be transmitted independently of a single optical fiber without interfering with each other and overlapping, so that it is compatible with the design of the coexisting hybrid optical wave splitter device.
7.可依不同光波段分割需求，彈性增減專用光纖，分光鏡及聚焦鏡組之規格及數量，以配合每個上下行光波傳輸波段分割所需。 7. According to different optical bands, the requirements of the optical fiber can be increased or decreased. The specifications and quantity of the dedicated optical fiber, the beam splitter and the focusing mirror are matched to meet the requirements of each uplink and downlink optical wave transmission band division.
上列詳細說明乃針對本發明之一可行實施例進行具體說明，惟該實施例並非用以限制本發明之專利範圍，凡 未脫離本發明技藝精神所為之等效實施或變更，均應包含於本案之專利範圍中。 The detailed description above is specifically described with respect to one possible embodiment of the present invention, but the embodiment is not intended to limit the scope of the patent of the present invention. Equivalent implementations or modifications that do not depart from the spirit of the invention are intended to be included in the scope of the invention.
綜上所述，本案不僅於技術思想上確屬創新，並具備習用之傳統方法所不及之上述多項功效，已充分符合新穎性及進步性之法定發明專利要件，爰依法提出申請，懇請 貴局核准本件發明專利申請案，以勵發明，至感德便。 To sum up, this case is not only innovative in terms of technical thinking, but also has many of the above-mentioned functions that are not in the traditional methods of the past. It has fully complied with the statutory invention patent requirements of novelty and progressiveness, and applied for it according to law. Approved this invention patent application, in order to invent invention, to the sense of virtue.
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