TWI220342B - Optical interlaced wavelength division router - Google Patents

Abstract

There is provided an optical interlaced wavelength division router. Two optical ports are provided at two ends of the router, respectively, and are coupled to two fiber collimators, so as to divide optical signals with all wavelengths in an interlaced manner into two optical signals with a larger distance. Odd ray and Even ray separated from optical signals incident into different optical ports will transmit out from different optical ports, thereby effectively isolating optical signals.

Description

122UJ42 修正122UJ42 correction

案號91114狀8 丨if1 五、發明說明（1) 【發明領域】 本發明係為一種光訊號裝置，特別是一種四光遠加 m使兩輸入光埠之所有光訊號，皆各自:有 !第寺性。並且於兩輸出光璋處ΐ 有弟一輸入先可數波長組與第二輸入光偶处一 弟一輸入光偶數波長組與第二輸入光奇^偶二，而 ΐ(; - ^ ^ ^ 間中分波相互顛倒）。 "、工 【發明背景】 隨著科技日新月異、網際網路的大量使用以及人 通訊的傳遞需求量一直不斷地擴充，網路設備商必 須提供更多的頻寬來傳遞越來越多的影音訊號。波長多工 土統（Wavelength Division Multiplexing ;WM)與高 岔度波長多工系統（Dense WDM ; DWDM )的技術可大量擴 充現有光纖實體架構的總傳輸量。 、 回岔度波長多工系統可以將許多各自載有不同訊號的 光波長透過同一根光纖來傳輸，波長的合成與分離 (MUX/DEMUX)以及加取（Add/Drop)多使用光學薄膜濾 片來加以達成。但是光學薄膜濾片的通道寬度不易降低， 並且在鬲功率的條件下容易隨時間老化，因此，降低傳輸 糸統中通道與通道之間距是增加總傳輪容量的更好方法， 請參閱「第1圖」，將入射光100分波為奇數光訊號200以 及偶數光訊號3 0 0，而間距由f變為2 f 。以現有光學薄膜 濾片的系統架構而言，通道與通道之間距為2 〇 〇 g Η z，如果 能夠使相鄰通道間距降低為100GHz，並且在不變動既有的Case No. 91114 shape 8 丨 if1 V. Description of the invention (1) [Field of invention] The present invention is an optical signal device, especially a four-light distance plus m so that all the optical signals of the two input optical ports are each: Yes! The first temple sex. And at the two output optical beams, there is a first-input countable wavelength group at the second input optical pair and a second-input even-numbered wavelength group at the second input optical pair and the second input light odd ^ even two, and ΐ (;-^ ^ ^ (Sometimes the partial waves are reversed to each other). " Industrial Background] With the rapid development of science and technology, the extensive use of the Internet and the demand for transmission of human communications, the network equipment vendors must provide more bandwidth to deliver more and more audio and video. Signal. Wavelength Division Multiplexing (WM) and high-fork wavelength multiplexing systems (Dense WDM; DWDM) technologies can greatly expand the total transmission capacity of the existing optical fiber physical architecture. The multiplexing wavelength multiplexing system can transmit many optical wavelengths each carrying different signals through the same fiber. The combination and separation of wavelengths (MUX / DEMUX) and addition (Add / Drop) use optical film filters. To achieve it. However, the channel width of the optical film filter is not easy to decrease, and it is easy to age with time under the condition of high power. Therefore, reducing the distance between the channel and the channel in the transmission system is a better way to increase the total wheel capacity. Figure 1 ", the 100-part wave of incident light is an odd-numbered optical signal 200 and an even-numbered optical signal 3 0 0, and the spacing is changed from f to 2 f. In terms of the existing optical film filter system architecture, the channel-to-channel distance is 200 g Η z. If the distance between adjacent channels can be reduced to 100 GHz, the existing

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號9川49奴 五、發明說明（2) 5 I : ί片網路架構的前提下，通道數目的倍增，將可 使總傳輸S得以倍增。 &奶：i f具有波長分波特性的元件能擴充至四光埠，則 =夠1未來搭配著深具潛力的波長可調面發光雷射 Μ & $ TUnable VCSEL)，扮演一個波長路由器的關 新型光纖網路架構。\二二配广“ reconfigurable) 稱貝際的架構，可利用一四埠單向光波 ^又二1 ;路由态9 1構成一個概略為『8』字形的資訊交 向二=光纖網路架冑（見第2A圖），或是利用四埠雙 芊分波路由器92也可（見第⑼圖），而這樣的 直線延伸（見第2丄 波長交錯分波路由器9〇 2Ε圖）。 圖），或是構成環狀的排列（見第2D、 露如為美國公告第569423 3與60975 1 8號專利，揭 cr二波之週期性分光元件的架構，但 所需組都需要一個光纖準直器，造成體積大、 【發明之目的及概述】 本發明的主要目& g么@ ^ f ^ 器，提供-種四Π 為供m長交錯分波路由 距光波H _ 車兀件，可使第一光埠入射之所有等間 九波長汛號，會交錯分波而由 射，且光訊號間距為雨供，而曰楚==及弟四九蜂出 會交_八咕而i给為兩^而且弟二光琿入射的光訊號也 為兩^並且波具二光埠及第四光埠出射，且光訊號間距 倒。。皮長於空間中之分波肖第一光埠之入射光顛 1220342No. 9 Chuan 49 Slave 5. Description of the invention (2) 5 I: Under the premise of a network architecture, doubling the number of channels will double the total transmission S. & Milk: If a component with wavelength division characteristics can be expanded to four optical ports, then = 1 will be used in the future with a deep wavelength tunable surface emitting laser (& T Unable VCSEL), acting as a wavelength router Related to the new optical fiber network architecture. \ 二 二 配 广 "reconfigurable" called Beiji's architecture, which can use a four-port unidirectional light wave ^ and 2 1; routing state 9 1 constitutes a roughly "8" -shaped information exchange 2 = optical fiber network frame. (See Figure 2A), or you can use the four-port dual-channel demultiplexing router 92 (see Figure VII), and such a straight line extension (see Figure 902 of the wavelength interleaved demultiplexing router 2). Or form a ring-like arrangement (see 2D, Lu Ru is US Publication Nos. 569423 3 and 60975 1 8 patents, revealing the structure of the periodic wave splitting element of the cr wave, but the required group requires an optical fiber collimation Device, resulting in large volume, [Objective and summary of the invention] The main purpose of the present invention & g @@ f f ^ device, provides-a kind of four Π for m long staggered sub-wave routing distance light wave H _ car element, can All isochronous nine-wavelength flood numbers that are incident on the first optical port will be interleaved with partial waves and transmitted, and the optical signal spacing is rain supply. It is two ^ and the light signal incident to the second light is also two ^ and the wave has two optical ports and the fourth optical port to exit, and the optical signal is between Spaces longer than the skin down .. Boxiao points of the first light incident port Britain 1,220,342

案號 91114288 、發明說明（3) 根據本發明所揭露的光波長交錯分波路 =數個雙折射波片，來構成光訊號分波交’係利用 ，所有波長之光訊號切“數波訊號以及=力可將具 :以間距會變*。並且配合光偏振分離可哭數波訊號， 轉晶體、偏振光訊號位移器、光肖产 时、偏振旋 ，錯分波器，可將由光纖= =構= 長之光汛唬），會分離為奇數波訊號（〇 、 J訊號U，y)而分別合併進入一雙心光纖 且本發明兩端分別耦合於雙心光纖準哭， 、、 不同光U射的以出來料數波；;號，。可使由 ray)與偶數波訊號（E-ray)分別耦合於不同的光埠 為使對本發明的目的、構造特徵及其功能有進一步 解’茲配合圖示詳細說明如下： 【實施例詳細說明】 「>根據本發明所揭露的光波長交錯分波路由器，請參閱 第3A圖」，單向光波長交錯分波路由器91包含有四個光 =，分別為第一光埠1、第二光埠2、第三光埠3以及第四 /埠4，由第一光埠！入射的所有等間距（間距=f )光訊 號包含有奇數光訊號〇1以及偶數光訊號匕，會因為單向光 ，長交錯分波路由器91的特性而使得奇數光訊號〇1以及偶 數光訊號Ei分別由第三光埠3以及第四光埠4出射，光訊號 間距為2 f，且交錯一個波長間距；而由第二光埠2入射的 光訊號（同樣為等間距f，包含奇數光訊號〇2以及偶數光訊 \匕）’會因為單向光波長交錯分波路由器9 1的特性而使 數光訊號〇2以及偶數光訊號E2分別由第四光埠4以及第 第7頁 1220342Case No. 91114288, description of the invention (3) According to the present disclosure, the optical wavelength staggered branching wave path = several birefringent wave plates to constitute the optical signal sub-wave crossing is used. The optical signals of all wavelengths are cut into the “digital wave signal and = Force can be changed: the distance will change *. And with the polarization of the light can separate the number of signals, crystal, polarized light signal shifter, light beam production, polarization rotation, demultiplexer, can be made by optical fiber = = Structure = long light flood), will be separated into odd wave signals (0, J signals U, y) and merged into a dual-core optical fiber, respectively, and the two ends of the present invention are coupled to the dual-core optical fiber. The U-radiated number wave can be used to couple the ray) and even-wave signals (E-ray) to different optical ports respectively, so as to further understand the purpose, structural features and functions of the present invention. The following is a detailed description with the illustration: [Detailed description of the embodiment] "> The optical wavelength interleaved demultiplexing router according to the present invention, please refer to FIG. 3A". The unidirectional optical wavelength interleaved demultiplexing router 91 includes four Light =, respectively for the first optical port 1, Two optical port 2, a third and a fourth optical port 3/4 port, a first optical port! All incident equally-spaced (pitch = f) optical signals include odd-numbered optical signals 〇1 and even-numbered optical signals. Odd-numbered optical signals 〇1 and even-numbered optical signals will be caused by the characteristics of unidirectional light and long-interleaved demultiplexing router 91. Ei is emitted from the third optical port 3 and the fourth optical port 4, respectively, and the optical signal interval is 2 f, and the wavelength interval is staggered; and the optical signal incident from the second optical port 2 (also the same interval f, including odd-numbered light) Signal 〇2 and even optical signal \)) Due to the characteristics of the unidirectional optical wavelength interleaved demultiplexing router 91, the digital optical signal 〇2 and the even optical signal E2 will be changed by the fourth optical port 4 and page 7 1220342 respectively.

:ίί:Λ，/訊號間距為2f，且交錯-個波長間距， 分波與第—光41之入射光訊號顛倒。 戶向入射第三光埠3以及第四光槔4的光訊 而雙向光波長交錯分波路由器92，請參閱「第3B 圖」，其特性概略與單向光波長交錯分波路由器91相同， 但是為雙向的元件。以下就其詳細組成元件一一描述之。 =先如第4圖」所示，單級光訊號分波交錯機制J 〇 a包S有兩雙折射波片n、12以及一檢偏鏡Unaiyzer) 1 0 3，其中雙折射波片丨丨之光軸丨〇 2 a與入射光丨〇丨之行進 方向垂直，並且與入射光101的偏振態夾角，而雙折射 波片12為溫度穩定之用，依據雙折射波片n、12之雙折射 材料（可為LiNb03、YV04、Calcite、Ti02、MgF2、 PbMo(H、a -BBO等雙折射材料所構成）溫度膨脹係數 (thermal expansion coefficient)與溫度光學係數 (thermal optical coefficien1:)來決定雙折射波片 12 之長度L2，使得單級光訊號分波交錯機制丨〇 a之分波效應 對操作溫度範圍内保持穩定。當0 1為4 5度時，入射光1 〇工 牙過雙折射波片11、1 2後，遭遇到檢偏鏡丨〇 3，其穿透頻 邊清參閱附件一，藉由選取適當的雙折射波片丨丨之長度 L1 ’可加以控制穿透頻譜之週期至所需的間距。 本發明雙級光訊號分波交錯機制1 〇 b，請參閱「第5 圖」’係於單級光訊號分波交錯機制1 〇 a中再增加兩雙折 射波片13、14，且雙折射波片13之長度L3為雙折射波片11 之長度L1的兩倍，雙折射波片11、13之光軸102 a 、l〇2b: ίί: Λ, / The signal interval is 2f, and the inter-wavelength interval is interleaved. The sub-wave and the incident light signal of the first light 41 are reversed. The two-way optical wavelength interleaved demultiplexing router 92 is directed to the optical signals incident on the third optical port 3 and the fourth optical beam 4 by the user. Refer to "Figure 3B". Its characteristics are similar to those of the unidirectional optical wavelength interleaved demultiplexing router 91. But it is a two-way element. The detailed constituent elements are described below. = As shown in Figure 4 ", the single-stage optical signal demultiplexing mechanism J 〇a package S has two birefringent wave plates n, 12 and an analyzer (Unaiyzer) 1 0 3, of which birefringent wave plates 丨 丨The optical axis 丨 〇2 a is perpendicular to the direction of travel of the incident light 丨 〇 丨 and is at an angle to the polarization state of the incident light 101, and the birefringent wave plate 12 is used for temperature stabilization, according to the double of the birefringent wave plates n, 12 Refractive material (may be LiNb03, YV04, Calcite, Ti02, MgF2, PbMo (composed of birefringent materials such as H, a -BBO)) Thermal expansion coefficient and thermal optical coefficien1: The length L2 of the refracting wave plate 12 makes the single-stage optical signal sub-wave interleaving mechanism 丨 〇a's sub-wave effect remains stable over the operating temperature range. When 0 1 is 45 degrees, the incident light 1 〇 teeth are birefringent After wave plates 11 and 12, an analyzer was encountered, and the transmission frequency side of the wave plate was referred to Annex 1. By selecting an appropriate birefringent wave plate, the length L1 'can be used to control the period of the transmission spectrum. To the required pitch. The dual-stage optical signal sub-wave interleaving mechanism of the present invention 1 b, please refer to the "figure 5" is the addition of two birefringent wave plates 13, 14 to the single-stage optical signal demultiplexing interleaving mechanism 10a, and the length L3 of the birefringent wave plate 13 is the birefringent wave plate 11 Twice the length L1, and the optical axes 102a, 102b of the birefringent wave plates 11, 13

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i號 9111428R 五、發明說明（5) 與入射光1 0 1之行進方向垂直，並且與入射光i 〇 i的偏振離 分別夾角Θ1、Θ2，❿同樣的雙折射波片12、14為溫度； ，之用，依據雙折射波片n、13之雙折射材料溫度膨服係 數與溫度光學係數來決定雙折射波片丨2、丨4之長度L2、 L4，使得雙級光訊號分波交錯機制1〇 b之分波效^對操作 溫度範圍内保持穩定。當0 i為45度時，藉由0 2適當的設 計（譬如為-5度），入射光1〇1穿過雙折射波片η、12、< 1 -3、14後遇到檢偏鏡103，其穿透頻譜請參閱附件 一，其通帶寬度（passband width )會增加並且達到平坦 化（flattened )的功能。藉由選取適當的雙折射波片η — 之長度L1，可加以控制穿透頻譜之週期至所需的間距。 光訊號分波交錯機制1〇其光軸為1〇2，如「第6八图 戶”，當光訊號81入射時（具有所有波長，且偏振態：丄 偏振），進入分波交錯機制10後其特性會使得光訊號81分 波偏振為奇數波長之光訊號81〇（y偏振）以及偶數波 之光訊號81 E ( X偏振）。反之，如「第6 B圖」所示，、 光訊號82入射時（具有所有波長，且偏振態為y偏振、）， f入分波父錯機制1 〇後其特性會使得光訊號8 2分波偏振 可數波長之光訊號82〇（X偏振）以及偶數波長 82E ( y偏振）。 ^ Λ歲 一本發明之光波長交錯分波路由器，如「第7Α、7β图 :示，係包含有第-光角度偏折器50a、帛一光偏振分離」/ 二併裔（p〇larizatl〇n beam splitter/combiner ) 20a 、 (polarization beam displacer ) 40a、光訊號分波交錯 第一偏振旋轉晶體3 〇 a、第一偏振光訊號位移器i No. 9114128R V. Description of the invention (5) The birefringent wave plates 12, 14 which are perpendicular to the traveling direction of the incident light 101 and the polarization angles of the incident light i 〇i are respectively Θ1, Θ2, and ❿ is the temperature; For the purpose, the lengths L2 and L4 of the birefringent wave plates 丨 2, 丨 4 are determined based on the temperature expansion coefficient and temperature optical coefficient of the birefringent materials of the birefringent wave plates n and 13, which make the bi-level optical signal sub-wave interleaving mechanism. The split wave effect of 10b is stable over the operating temperature range. When 0 i is 45 degrees, with an appropriate design of 0 2 (for example, -5 degrees), the incident light 10 passes through the birefringent wave plate η, 12, < 1 -3, 14 and encounters an analyzer For the transmission spectrum of the mirror 103, please refer to Annex 1. The passband width of the mirror 103 will increase and achieve a flattened function. By selecting the appropriate length L1 of the birefringent wave plate η —, the period of the transmission spectrum can be controlled to the required distance. Optical signal demultiplexing interleaving mechanism 10 has an optical axis of 102, such as "No. 6 and 8", when the optical signal 81 enters (having all wavelengths, and polarization state: 丄 polarization), it enters the demultiplexing interleaving mechanism 10 The latter characteristic will make the optical signal 81 partial wave polarized to an odd-numbered light signal 810 (y polarization) and an even-numbered light signal 81 E (X polarization). Conversely, as shown in "Figure 6B", when the optical signal 82 is incident (having all wavelengths, and the polarization state is y-polarization), the characteristics of the f-in-wave division error mechanism 10 will make the optical signal 8 2 The demultiplexed light has a countable light signal of 82 ° (X polarization) and an even wavelength of 82E (y polarization). ^ Λ year-old optical wavelength staggered demultiplexing router of the present invention, as shown in "Figures 7A and 7β: showing the first-light angle deflector 50a and the first-light polarization separation" / dual descent (p〇larizatl 〇n beam splitter / combiner) 20a, (polarization beam displacer) 40a, optical signal splitting interleaved first polarization rotation crystal 3 〇a, first polarized light signal shifter

Μ ^20342Μ ^ 20342

月 曰 _,4 〜〜〜 機制1 0 (可為上述單級光訊號分波交錯機制1 0 a或是雙級 ，訊號分波交錯機制丨ot))、第二偏振光訊號位移器4〇b、 =—偏振旋轉晶體3 0 b、第二光偏振分離/合併器2 0 b以及 ，一光角度偏折器5 〇 b。雙心準直器載有所有波長之光訊 ，（λ 1 、又2、 λ 3、又4 ··· ···)，包含有第一光埠1以及 ，一光埠2，通過穿透式光訊號交錯分波器後，會分離為 波成號（〇 — ray)與偶數波訊號（E — ray)而合併進入 I個雙光纖準直器的第三光埠3以及第四光埠4。其中偏振 就位移器4 0 a、4 0 b以及光偏振分離/合併器可為一雔 片 二體’偏振旋轉晶體可為一法拉第晶體或半波長波 光角度偏折器5〇a、50b可為一光學玻璃或是高折射率 先學晶體。 千 離往3由第一光埠1入射的入射光100其交錯分波光路偏振 吉二二閱，睛參閱「第8圖」，入射的入射光10 〇為雙心準 直;二輪出所有波長之光訊號（λ1、λ2、λ3、λ4 旱 肖声）隹，通過第一光角度偏折器50a會將入射光100偏折一 第二也入，接著經過第一光偏振分離/合併器2 0 a後會因 ^ (walk-〇ff) 的光訊號71 方向，離接VVVM#u71 ’而成為兩偏振態正交 『R』的位置，為合受到上曰曰體3〇 3、3〇 b中標註 標註『N p达馬曰又到衫響使偏振態旋轉90度的位置， N R』為沒有影塑仏，如 的位置變4『R ，禆4的位置變為『N R』’『N R』 : 」，係可上^半波長波片（或是四分之_Month _, 4 ~~~ Mechanism 1 0 (can be the single-stage optical signal sub-wave interleaving mechanism 10 a or double stage, signal sub-wave interleaving mechanism 丨 ot), the second polarized optical signal shifter 4〇 b, =-polarization rotation crystal 3 0 b, second light polarization splitter / combiner 2 0 b, and a light angle deflector 50 0b. The dual-center collimator carries optical signals of all wavelengths (λ 1, 2, 2, λ 3, and 4 ······), including a first optical port 1 and an optical port 2 through transmission. Type optical signal staggered splitter, it will be separated into wave signal (0-ray) and even wave signal (E-ray) and merged into the third optical port 3 and fourth optical port of a dual fiber collimator 4. Among them, the polarization shifter 40a, 40b, and the optical polarization splitter / combiner can be a cymbal, two-body 'polarization rotation crystal can be a Faraday crystal or a half-wave wave light angle deflector 50a, 50b can be An optical glass or high-refractive crystal. Thousands of away incident light 100 incident from the first optical port 1 has a staggered branched light path polarization of two hundred and twenty. See "Figure 8". The incident incident light 100 is double-center collimated; Light signal (λ1, λ2, λ3, λ4), 通过, the first light angle deflector 50a will deflect the incident light 100 by a second and enter it, and then pass through the first light polarization splitter / combiner 2 After 0 a, due to the direction of the optical signal 71 of ^ (walk-〇ff), it will be separated from VVVM # u71 'and become the position of two orthogonal polarizations "R". The position marked "N p Damma said that the polarization state is rotated by 90 degrees to the shirt ring, NR" means that there is no shadow shape. If the position becomes 4 "R, the position of 禆 4 becomes" NR "'" NR 』:”, can be ^ half-wavelength plate (or quarter _

第10頁 可逆性，使得原务『R 3 、位置，而反向時，利用光的不 1220342 案號 91Π4288Page 10 Reversibility, making the original service "R 3, position, and when reversed, the use of light is not 1220342 case number 91Π4288

五、發明說明（7) 波長波片）加上法拉第晶片結合產生此非互補性的效果 而『2R』為旋1兩次），會形成一偏振態與上方光訊 一樣的光訊號7 3。 接著進入第-偏振光訊號位移器40 a，因為偏振 為0-ray，所以不受影響，之後進人光訊號分波交錯機制 10 ’通過之光訊號會因為不同波長之相位延遲而 性的頻譜’並且奇數波長（λ1、λ3......)與偶數波/ ^λ2 ' λ4……）之偏振態會正交，再經過第二偏振光訊 號位移器40b會受到其效應影響’而使得其中的偶數波 的光訊號會產生偏移效應而分離，也就是 " m、71E、730、73E，MW:wJ=b， 同理，光訊號710與光訊號73E會受到影響旋轉9〇度（雖然 光訊號71E也會受到影響，但是因為旋轉兩次9〇度的關…、 係’所以與沒有旋轉是相同的，運用這樣的光學設計可使 發明之結構無偏振相關模態色散），最後藉由第二光偏振 分離/合併器2〇b將光訊號710與光訊號73〇合併為奇數波訊 號2〇〇 ’而光訊號71E與光訊號71E合併為偶數波訊^虎⑽/， 再分別耦合進入一雙心光纖準直器的第三光璋3以及第四 光埠4。 而如果自第二光埠2入射，請參閱「第9圖」，入射的 光訊號1 0 〇為雙心準直器輸出所有波長之光訊號（又i、 λ2 ' λ3 ' λ4……），通過第一光角度偏折器50a會將光 訊號100偏折一角度進入，接著經過第—光偏振分離/合併 器20 a後會因第一光偏振分離/合併器2〇 3 ，會因為偏移 效應而在I方向分離出一光訊號72 ’而成^ :振態正交V. Description of the invention (7) Wavelength wave plate) combined with a Faraday chip to produce this non-complementary effect, and "2R" is a rotation of 1 twice), it will form a light signal with the same polarization state as the upper light signal 7 3. Then enter the first-polarized light signal shifter 40 a, because the polarization is 0-ray, so it is not affected, and then enter the optical signal sub-wave interleaving mechanism. 10 'passed optical signals will have a spectrum due to phase delay of different wavelengths. 'And the polarization states of the odd-numbered wavelengths (λ1, λ3 ...) and even-numbered waves / ^ λ2' λ4 ...) will be orthogonal, and then pass through the second polarized light signal shifter 40b will be affected by its effect 'and The optical signals of the even-numbered waves will be separated and shifted, that is, " m, 71E, 730, 73E, MW: wJ = b. Similarly, the optical signal 710 and the optical signal 73E will be affected by rotation 9. (Although the light signal 71E will also be affected, it is the same as no rotation because of the 90 ° rotation of the two rotations ..., system. Using this optical design can make the structure of the invention free of polarization-dependent modal dispersion) Finally, the second optical polarization splitter / combiner 20b combines the optical signal 710 and the optical signal 73 ° into an odd wave signal 200 ′, and the optical signal 71E and the optical signal 71E are combined into an even wave signal ^ 虎 ⑽ / , And then coupled into a dual-core fiber collimator Third and fourth optical light Zhang 3 port 4. If it is incident from the second optical port 2, please refer to "Figure 9". The incident optical signal 100 is the optical signal of all wavelengths output by the dual-center collimator (also i, λ2 'λ3' λ4 ...), The optical signal 100 is deflected by an angle through the first light angle deflector 50a, and then after passing through the first light polarization splitter / combiner 20a, the first light polarization splitter / combiner 203 will be deflected due to the deflection. Shifting effect to separate a light signal 72 ′ in the I direction ^: Oscillation state orthogonal

第11頁Page 11

案號9]1U9仙 五、發明說明（8) 的光訊號71、72，接著 ^ 晶體組3〇a的影響，形 方的光訊號72受到第一偏振旋轉 光訊號73。接著進入第一一偏振態與下方光訊號71 ~樣的 振態皆為E-ray，所以同—日士偏振光訊號位移器40 a ，因為偏 波交錯機制1 〇，再經過^日寸-向左偏移，之後進入光訊號分 其效應影響，而形偏振光訊號位移器4〇b會受到 過第二偏振旋轉晶體3〇b71E、730、73E，接著通 會受到影響旋轉90度，田同理，光訊號71〇與光訊號73E 2〇b將光訊號710與二=精由第二光偏振分離/合併器 訊號71E與光訊號71E合=合併為奇數波訊號200，而光 進入一雙心光纖_ I ^ ^數波訊號300，再分別耦合 而太I ^ ί 的第三光埠3以及第四光埠4。 第-偏振旋轉晶體30 ίΪ =分波路由器92 ’主要係將 由第-光埠1以及第-光性的偏振旋轉晶體，而 ^ ^ 弟一先埠2入射的光訊號100其原理盥前 面相同，不再重複累述。 〃則 【達成之功效】 本發明為一種光波長交錯分波路由器，利用雙折射波 片配t光偏振分離/合併器、偏振旋轉晶體、偏振光訊號 位移态、光角度偏折器等元件構成光訊號交錯分波器，可 將由光纖準直器輸出之入射光（所有波長之光訊號），會 分離為奇數波訊號（〇dd— ray)與偶數波訊號（Even— )而分別合併進入一雙心光纖準直器的兩埠，且本發明兩 端分別耦合於雙心光纖準直器，並可使由不同光埠入射的 光訊號所分離出來的奇數波訊號（〇dd_ray )與偶數波訊 (Even-ray )分別耦合於不同的光埠，使得不同光埠入 1220342 案號 91114288 曰 修正 五、發明說明（9) 射的光訊號波長於空間中之分波與第一光埠之入射光顛 倒。 以上所述者，僅為本發明其中的較佳實施例而已，並 非用來限定本發明的實施範圍；即凡依本發明申請專利範 圍所作的均等變化與修飾，皆為本發明專利範圍所涵蓋。Case number 9] 1U9 cents 5. The optical signals 71 and 72 of the invention description (8), followed by the effect of the crystal group 30a, the rectangular optical signal 72 is subjected to the first polarization rotation optical signal 73. Then enter the first state of polarization and the state of the optical signal 71 ~ below. Both are E-ray, so the same-Japanese polarized light signal shifter 40 a, because the polarization interleaving mechanism 1 0, and then ^ -inch inch- It shifts to the left, and then enters the optical signal and its effect is affected, and the shaped polarized light signal shifter 40b will be subjected to the second polarization rotation crystals 30b71E, 730, and 73E, and then it will be affected by 90 ° rotation. Tian Tongli The optical signal 71 and the optical signal 73E 2b will combine the optical signal 710 and the second = fine by the second optical polarization splitter / combiner signal 71E and the optical signal 71E to combine into an odd wave signal 200, and the light enters a double heart The optical fiber I ^ ^ digital signal 300 is coupled to the third optical port 3 and the fourth optical port 4 respectively. The first polarization-rotating crystal 30 Ϊ = the demultiplexing router 92 'is mainly composed of the -optical port 1 and the -optical polarization-rotating crystal, and the principle of the light signal 100 incident on the first port 2 is the same as the previous one, No more repetition. Rule [Achieved effect] The present invention is an optical wavelength staggered demultiplexing router, which uses birefringent wave plates with t-light polarization splitter / combiner, polarization rotation crystal, polarization signal displacement state, and light angle deflector. The optical signal interleaved demultiplexer can separate the incident light (optical signals of all wavelengths) output by the optical fiber collimator into odd wave signals (〇dd-ray) and even wave signals (Even-) and merge them into one. The two ports of the double-core fiber collimator, and the two ends of the invention are respectively coupled to the double-core fiber collimator, and the odd-numbered wave signal (〇dd_ray) and the even-numbered wave separated by the optical signals incident from different optical ports can be separated. (Even-ray) are respectively coupled to different optical ports, so that different optical ports enter 1220342 Case No. 91114288 Amendment V. Description of the Invention (9) The wavelength of the light signal emitted by the light in space and the incident of the first optical port Light upside down. The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention; that is, all equivalent changes and modifications made in accordance with the scope of the patent application for the present invention are covered by the scope of the present invention .

第13頁 1220342 案號 91114288 Λ_η 曰 修正丨 圖式簡單說明 次 第1圖為交錯分波之示意圖； 第2Α〜2Ε圖為四光埠波長分波元件之應用例圖； 第3Α、3Β圖為本發明單向與雙向光波長交錯分波路由 為之不意圖， 第4圖為本發明單級光訊號分波交錯機制之示意圖； 第5圖雙級光訊號分波交錯機制之示意圖； 第6Α、6Β圖為本發明光訊號分波交錯機制特性之示意 圖， 第7Α、7Β圖為本發明結構及光路之示意圖； 第8圖為本發明單向交錯分波路由器之第一光埠行進 偏振恶不意圖，及 第9圖為本發明單向交錯分波路由器之第二光埠行進 偏振悲不意圖。 【圖式符號說明】 234 0 0 a Ob 1〜 0 1 0 2 14 第一光璋 第二光琿 第三光琿 第四光埠 光訊號分波交錯機制 單級光訊號分波交錯機制 雙級光訊號分波交錯機制 雙折射波片 入射光 光軸Page 13 1220342 Case No. 91114288 Λ_η Revision 丨 The diagram is briefly explained. The first diagram is a schematic diagram of the interleaved division; the second diagram 2A to 2E are the application example diagrams of the four-port wavelength demultiplexing element; the third diagrams 3A and 3B are the diagrams. It is not intended to invent unidirectional and bidirectional optical wavelength interleaved demultiplexing routing. FIG. 4 is a schematic diagram of a single-stage optical signal demultiplexing interleaving mechanism of the present invention; FIG. 5 is a schematic diagram of a two-stage optical signal demultiplexing interleaving mechanism; Figure 6B is a schematic diagram of the characteristics of the optical signal demultiplexing interleaving mechanism of the present invention, and Figures 7A and 7B are schematic diagrams of the structure and optical path of the present invention; Figure 8 is the first optical port of the unidirectional interleaved demultiplexing router of the present invention. Intention, and FIG. 9 are the intentions of the polarization of the second optical port of the unidirectional interleaved branching router of the present invention. [Symbol description] 234 0 0 a Ob 1 ~ 0 1 0 2 14 First light 璋 Second light 珲 Third light 珲 Fourth optical port Optical signal splitting interleaving mechanism Single stage Optical signal splitting interleaving mechanism Double stage Optical signal splitting wave interleaving mechanism birefringent wave plate incident light optical axis

第14頁 1220342Page 14 1220342

第15頁 _案號 91114288_年月曰 修]Τ 1:2? 圖式簡單說明 1 0 2 a Λ 1 0 2 b 光 轴 1 0 3 檢 偏 鏡 2 0 a 第 一 光 偏 振 分 離 /合併； 2 0 b 第 二 光 偏 振 分 離 /合併； 3 0 a 第 一 偏 振 旋 轉 晶 體 組 3 0 b 第 二 偏 振 旋 轉 晶 體 組 4 0 a 第 一 偏 振 光 訊 號 位 移器 4 0 b 第 二 偏 振 光 訊 號 位 移器 5 0 a 第 一 光 角 度 偏 折 器 5 0 b 第 二 光 角 度 偏 折 器 Θ 1 、Θ 2 偏 振 態 爽 角 L1 Λ L2 L3 L4 長 度 7 1 7 3 光 訊 號 7 1 〇 Λ 7 3 〇 光 訊 號 7 1 E Λ 7 3 E 光 訊 號 8 1 Λ 8 1 〇 Λ 8 1 E 光 訊 號 8 2 Λ 8 2 〇 8 2 E 光 訊 號 9 0 波 長 交 錯 分 波 路 由 器 9 1 單 向 波 長 交 錯 分 波 路由 9 2 雙 向 波 長 交 錯 分 波 路由 1 0 0 入 射 光 2 0 0 奇 數 光 訊 號 3 0 0 偶 數 光 訊 號 〇 1 、〇2 奇 數 光 訊 號 1220342 案號 91114288 年月曰 修正 圖式簡單說明 偶數光訊號Page 15_Case No. 91114288_Year Month and Revise] T 1: 2? Brief description of the drawing 1 0 2 a Λ 1 0 2 b Optical axis 1 0 3 Polarizer 2 0 a First light polarization separation / combination; 2 0 b second light polarization separation / combination; 3 0 a first polarization rotation crystal group 3 0 b second polarization rotation crystal group 4 0 a first polarization signal shifter 4 0 b second polarization signal shifter 5 0 a First light angle deflector 5 0 b Second light angle deflector Θ 1, Θ 2 Cooling angle L1 Λ L2 L3 L4 Length 7 1 7 3 Optical signal 7 1 〇Λ 7 3 〇 Optical signal 7 1 E Λ 7 3 E optical signal 8 1 Λ 8 1 〇Λ 8 1 E optical signal 8 2 Λ 8 2 〇 8 2 E optical signal 9 0 wavelength interleaved demultiplexing router 9 1 unidirectional wavelength interleaved demultiplexing route 9 2 bidirectional Wavelength staggered demultiplexing route 1 0 0 incident light 2 0 0 odd light signal 3 0 0 Even-numbered optical signal 〇 1, 〇 2 Odd-numbered optical signal 1220342 Case No. 91114288 Modified in the drawing Simple explanation of even-numbered optical signal

E , ^ EE, ^ E

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Claims (1)

1220342 --塞號 91114288 六、申請專利範圍 年月曰1220342-No. 91114288 VI. Scope of patent application 1 · 一種光波長交錯分波路由器，兩端各具有兩光埠，分 別搞合於一雙心光纖準直器，係用以將一具有所有波 長之入射光交錯分波為一偶數波訊號以及一奇數波訊 號向外輸出，該光波長交錯分波路由器係包含有： 、一第一光偏振分離/合併器，可將該入射光偏移成 為兩偏振態互相正交之光訊號； 一第一偏振旋轉晶體，用以使該其中之一該光訊 號之偏振態旋轉，而成為兩偏振態相同之光訊號，且 使由不同該光埠入射之光訊號旋轉不同偏振態之光訊 光汛號分波交錯機制，使該兩偏振態相同之光 汛號分別分波交錯形成一偶數波長之偏振態與奇數波 長之偏振態相互正交之光訊號； * 一偏振光訊號位移器，將該兩偶數波長之偏振態 與奇數波長之偏振態相互正交之光訊號分別偏移分^ 成為一偶數波長之光訊號以及一奇數波長之光訊號； 一第二偏振旋轉晶體，用以使其中之一該偶數波 ίΐΐ訊號以及其中之一該奇數波長之光訊號之偏振 轉’而分別與另一該偶數波長之光訊號以及另一 μ可數波長之光訊號之偏振態正交； 正么一第二光偏振分離/合併器，可將該兩偏振態互相 交，偶數波長之光訊號與該奇數波長之光訊號合併 成為該偶數波訊號以及該奇數波訊號輸出； " 一光角度偏折器、，可將通過之光訊號的行進方向1. An optical wavelength staggered demultiplexing router with two optical ports at each end, which are respectively combined with a dual-core fiber collimator, and are used to stagger an incident light with all wavelengths into an even wave signal and An odd-numbered wave signal is output to the outside. The optical wavelength staggered demultiplexing router includes: a first optical polarization splitter / combiner that can shift the incident light into an optical signal with two polarization states orthogonal to each other; A polarization rotation crystal for rotating one of the polarization states of the optical signal into two light signals with the same polarization state, and rotating the light signals incident from different optical ports with different polarization states. The number-wave demultiplexing mechanism allows the two optical signals with the same polarization state to be de-interleaved to form an optical signal with an even-numbered polarization state and an odd-numbered wavelength polarization state that are orthogonal to each other. The optical signals orthogonal to the polarization states of the two even-numbered wavelengths and the orthogonal polarization states of the odd-numbered wavelengths are shifted respectively to become an even-numbered optical signal and an odd-numbered optical signal; a second polarization rotation A crystal used to polarize one of the even-numbered light signal and one of the odd-numbered light signal to the polarization of the other even-numbered light signal and the other μ-numberable light signal The states are orthogonal; a second optical polarization splitter / combiner can intersect the two polarization states, and the optical signals of the even wavelengths and the optical signals of the odd wavelengths are combined into the even wave signal and the odd wave signal output; " A light angle deflector, can move the direction of the light signal passing through 第17頁 1220342Page 12 1220342 六 2. 3. 4. 5· 6. 案號 91114288 利範圍 - 偏折二使：ϊ;ΐί訊號以及該奇數波訊號可叙合 進入該雙心光纖準直态；以及 ° 其中藉由該第一偏振旋轉晶體使由不同該光埠入 射之光訊號旋轉不同偏振態之光訊號， 光埠輸入之光訊號所•出之該偶數波及= 波訊號耦合於該雙心光纖準直器之不同光埠。了數 如申:青專利範圍第1項所述光波長交錯分波路由器，盆 中該弟一光偏振分離/合併哭 /、 合併器可分別為-雙折射H及光偏振分離/ t申：專利範圍第1項所述光波長交錯分波路由…以及該第二偏振旋轉晶體可由、 法拉弟b曰體以及一半波長波片所組成。 =申，專利範圍第丨項所述光波長交錯分波路由器其 一主、*且、士 p 體該弟二偏振旋轉晶體係由 波長波片〃以及一四分之一波長波片所組成。 :明專利靶圍第1項所述光波長交錯分波路由哭，昱 曰 』馮光子玻螭或一鬲折射率光學 曰曰體0 :::專利範圍第lJS所述光波長交錯分波路由器，其 中^光a唬分波交錯機制係為包含有·· 生八、、/& ί i折射波片，其中之一該雙折射波片用以產 之二’。乂、曰之效應，另一該雙折射波片係為溫度穩定 如申睛專利範圍第6項所述光波長交錯分波路由器，其 曰VI 2. 3. 4. 5 · 6. Case No. 91114288 Scope-Deflection of two envoys: ϊ; ΐί signal and the odd wave signal can be combined into the dual-core fiber collimation state; and ° A polarization rotation crystal rotates light signals incident from different optical ports to rotate light signals of different polarization states. The optical signals input from the optical port are made by the even-numbered wave = wave signals coupled to the different light of the dual-core fiber collimator. port. The number of optical wavelength interleaved demultiplexing routers described in item 1 of the Qing patent range is as follows. The optical polarization splitter / combiner in the basin can be-birefringence H and optical polarization splitter / t. The optical wavelength staggered demultiplexing route described in the first item of the patent scope ... and the second polarization rotation crystal may be composed of a Faraday b-body and a half-wavelength plate. = Application, one of the optical wavelength interleaved demultiplexing routers described in item 丨 of the patent is a main, * ,, and p-body two-polarized rotating crystal system consisting of a wavelength plate 波 and a quarter-wavelength plate. : Ming optical target staggered demultiplexing route described in item 1 of the patent, Yu said "Feng Guangzi glass fiber or a refractive index optical system" :: :: Patent range lJS optical wavelength staggered demultiplexing router Among them, the light-wave splitting wave interleaving mechanism is composed of a refraction wave plate, and one of the birefringence wave plates is used to produce two. The effect of 之, ，, another birefringent wave plate is temperature stable. 第18頁 1220342Page 18 1220342 的長度係用 中该用以產生分波交錯效應之雙折射波片 來控制分波交錯頻譜之週期的間距。 8· 9. ^申請專利範圍第6項所述光波長交錯分波路由器，^ 2溫m μ雙折射波片的長度係根據該對雙折 射j片之雙折射材料溫度膨脹係數與溫度光學係數來 決定，以使分波交錯效應在操作溫度下保持稃定。 士口申請專利範圍第8項所述光波長交錯分波路‘由哭，宜 中該雙折射材料係選自LiNb〇3、γν〇4、’、 Ti02、MgF2、PbMo04以及α_ΒΒ〇所構成之組合e的其 - Ο ’、 I 10.如申請專利範圍第6項所述光波長交錯分波路由哭， 中該光訊號分波交錯機制更包含有一第二 片。 J又外射波 11 ·如申請專利範圍第丨項所述光波長交錯分波路由哭 中該光訊號分波交錯機制前更包含有另一偏振光° ’其 位移器，將該某一偏振方向之光訊號偏移。 k 12·如申請，利範圍第1項所述光波長交錯分波路由器， 中該一第一偏振旋轉晶體係可設計為可逆性。时其The length of the beam is controlled by the birefringent wave plate which is used to generate the de-interlacing effect to control the interval of the de-interlacing spectrum. 8. 9. ^ The optical wavelength staggered demultiplexer described in item 6 of the scope of the patent application, ^ 2 The temperature m μ birefringent wave plate length is based on the temperature expansion coefficient and temperature optical coefficient of the birefringent material of the pair of birefringent j plates It is determined so that the partial wave stagger effect remains stable at the operating temperature. The optical wavelength staggered demultiplexing path described in item 8 of Shikou's application for patents is composed of a combination of LiNb〇3, γν〇4, ', Ti02, MgF2, PbMo04, and α_ΒΒ〇 e's-0 ', I 10. As described in item 6 of the scope of the patent application, the optical wavelength interleaved demultiplexing route includes a second piece. J and external beam 11 · As described in the scope of the patent application, the optical wavelength interleaved sub-wave routing includes another polarized light before the optical signal sub-wave interleaved mechanism. The direction of the light signal is shifted. k 12. According to the application, the optical wavelength interleaved demultiplexing router described in item 1 of the scope of interest, in which the first polarization rotating crystal system can be designed to be reversible. Shiqi 第19頁Page 19