TW201810976A - Fiber optic switch comprising an optical signal amplifier, a splitter, WDM device, coupler, and SDN open-flow control unit - Google Patents

Abstract

The present invention provides a fiber optic switch using an connection method having optical fiber switching function, and in combination with an optical signal amplifier, a splitter, and a Wavelength Division Multiplexing (WDM) device, and a coupler, and a SDN (Software Define Network) open-flow control unit to achieve optical circuit connection communication with multiple light input/output ports and instantaneous exchange. The flexible architecture of the present invention can be upgraded from a basic optical switch to a multi-rate multi-channel optical switch to achieve multi-channel independent switching. Therefore, the bandwidth of single-mode fiber can be fully used. The open-flow control technology of an optical switching equipment is used to achieve intelligent processing open-flow of the optical signal control plan and data plan.

Description

Fiber Optic Switch

The present invention relates to a fiber-optic optical switch, and in particular to a connection method using an optical fiber switching function, combining an optical signal amplifier, an optical splitter, a multiplexer and a combiner, and a software defined network (SDN, Software Define Network). ) Open-flow management and control unit, to achieve the optical fiber switch with multiple optical input and output ports connected to the instantaneous exchange of optical lines.

Generally speaking, an optical switch for communication contains a plurality of single-mode optical fibers, and an electrical control relay or a stepping motor is used to mechanically change the optical path so that the input optical fiber path is switched to the output optical fiber path. For example, Patent Publication CN203573011U discloses a patent for a flexible configuration optical switch device. In addition, there is also a function of using a mirror square array to change the angle of the mirror using an electronically controlled relay to achieve the input fiber path and switch to the output fiber path, for example, patent publication information US4830444.

The optical switches described above are bulky and very power-hungry. In addition, because the switching speed is too slow, it is rarely used by the optical communication community. The subsequent micro-electromechanical technology is to use semiconductor technology to make micro-mirrors and waveguide square arrays, and use electronically controlled relays to change the angle of the mirrors to achieve the function of switching the input fiber path to the output fiber path. In this conventional technology, although the size of the optical switch can be reduced, it is expensive to manufacture and the optical path switching speed is greater than microseconds. For envelope and packet exchange, the exchange speed is still too slow, such as patent publication US 2002/0076142 A1.

Many optical switching element engineers are constantly trying to develop new switching element technologies, but they are either not fast enough (such as liquid crystal optoelectronics) or too complex and bulky (such as fiber gratings, thin films, thermoelectrics, and ultrasonic photoelectricity). Other higher-order technologies are still in the theoretical stage, and the practicality of the technology still needs to be broken.

It can be seen that there are still many shortcomings in the above-mentioned customary methods. It is not a good design, and it needs to be improved.

In view of the various shortcomings derived from the above-mentioned conventional methods, the inventor of this case has been eager to improve and innovate. After years of painstaking and meticulous research, he has finally successfully developed this optical fiber optical switch, which takes into consideration the practicality of optical switching speed and appropriate volume It also supports the signaling receiving function of SDN telecommunication or network service control center to make full use of the optical path switching function, which is in line with modern large packet switching services, huge demand and various application service types.

The purpose of the present invention is to provide a fiber-optic optical switch, which uses the switching function of clever connection of optical components and optical fibers to perform optical path switching of demultiplexed optical signals. The whole machine is mainly divided into two parts: a photoelectric card board and a photoelectric back board. These two parts are installed on the chassis frame of the optical switch. The number of photoelectric backplanes is at least one. The photoelectric card board is configured with multiple pieces, which corresponds to multiple pairs of input / output ports. The processor card provides the control and communication functions of the whole machine. The processor card board controls the timing of communication and exchange between the multiple optical card boards and the optical paths through the photoelectric backplane.

An embodiment of the present invention provides a fiber-optic optical switch, including: Photoelectric card boards are used to convert an optical signal input from an optical fiber into a light path; a photoelectric backplane is used to connect the photoelectric cards through an optical fiber, a combiner, and an optical connector. Board, which is used to communicate and control the photoelectric card boards; a processor card board, which is used to control the photoelectric card boards to communicate with an SDN server; and a mechanical frame, which is equipped with a direct current power supply, and The frame is used for accommodating the photoelectric card boards, the photoelectric back board and the processor card board to form the optical fiber optical switch.

To sum up, the optical fiber optical switch proposed by the present invention can handle single-wavelength multi-path switching. Can also handle multi-group multi-wavelength multi-path switching. Fully in line with the single-mode fiber multi-group multi-wavelength bandwidth transmission characteristics.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change that does not depart from the technical spirit of the present invention should be included in Within the scope of the patent in this case.

100,200‧‧‧Photoelectric backplane

101,111,210‧‧‧Photoelectric connectors

102‧‧‧Input / output optical signal

103‧‧‧Photoelectric Backplane Photoelectric Containment Hoop

104‧‧‧TX Fiber

105‧‧‧RX Fiber

110‧‧‧Photoelectric card board

112,214,235,315‧‧‧Fiber optic ferrule

113,423‧‧‧status indicator

211,411‧‧‧PCIe Bus Connector

212,300‧‧‧Optical Array Connector

213,310‧‧‧ input / output connectors

221,222,223,224,225,226,227,228‧‧‧Optical array connector

231‧‧‧Combiner A1

232,252,262,272‧‧‧Input

233,253,263,273‧‧‧ output

234,254,264,274‧‧‧The first optical signal contact

241,243,244,245,246,323‧The second optical signal contact

242,313,314,322‧‧‧ Fiber

251‧‧‧Combiner A2

261‧‧‧Combiner B1

271‧‧‧Combiner Nn

311‧‧‧ Beamsplitter

312‧‧‧Spectral Fiber Bundle

321‧‧‧switched fiber bundle

331‧‧‧PCIe control circuit

332‧‧‧Electronic Control Bus

333‧‧‧ Branch electric control line

334‧‧‧Optical Signal Amplifier

335‧‧‧SOA drive circuit

340‧‧‧combined signal input fiber

341‧‧‧Combined signal SOA drive circuit

342‧‧‧Combined optical signal output fiber

343‧‧‧combined signal input point

344‧‧‧combined signal amplifier

350‧‧‧Wavelength Demultiplexer

360‧‧‧Status display light

410‧‧‧processor card

420‧‧‧Processor

421‧‧‧Network processor and communication entity layer

422‧‧‧Storage device

412‧‧‧Ethernet

413‧‧‧Ethernet

FIG. 1 is a schematic diagram of a mechanical frame according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a photovoltaic backplane according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of a photoelectric backplane and an optical fiber connection according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a photoelectric card board according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of a processor card according to an embodiment of the present invention.

Hereinafter, the optical fiber optical switches of various embodiments will be described in detail with reference to the accompanying drawings. This disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Any person with ordinary knowledge in the technical field who understands the preferred embodiments of the present invention can be changed and modified by the techniques taught by the present invention without departing from the spirit and scope of the present invention.

Regarding the terms used in this article, unless otherwise specified, each term usually has the ordinary meaning of being used in this field, the content disclosed here, and the special content. Certain terms used to describe this disclosure are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art on the description of this disclosure.

Although the terms first, second, etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this exemplary embodiment, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

The flexible architecture of the present invention can be upgraded from a basic optical switch to a multi-rate multi-channel optical switch. The novel idea of the present invention adopts optical fiber, splitter, splitter, combiner and optical signal amplifier to form an optical switching function and achieve independent multi-channel switching. Can make full use of fiber bandwidth. Apply Open-flow control technology of optical switching equipment to achieve intelligent processing of optical signal signaling flow (Control plan) and Data Plan (traffic flow).

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic diagram of a mechanical frame according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a photovoltaic backplane according to an embodiment of the present invention. As shown in FIG. 1, the mechanical frame can be used for mounting the photovoltaic backplane 100 shown in FIG. 2. For convenience, Figure 2 The photovoltaic backplane 100 is upright. After the optoelectronic backplane 100 is installed, the optical fiber and the light combiner can be installed on its back. The front side of the mechanical frame can accommodate a plurality of photoelectric card boards and at least one processor card board (not shown). In addition, the mechanical frame may include a power supply unit (not shown).

As shown in FIG. 2, the optoelectronic backplane 100 includes a plurality of optoelectronic connectors 101 and a plurality of optoelectronic accommodating ferrules 103. The optical connector 101 may include an optical array connector, a PCIe bus connector, and an input port / output port connector.

The plurality of photoelectric card boards 110 may be respectively coupled to the photoelectric backplane 100. In detail, the optoelectronic backplane 100 can be coupled to the optoelectronic connectors 111 of the optoelectronic card boards 110 through its optoelectronic connector 101. In addition, the photoelectric backplane 100 can receive external input / output optical signals 102 through the TX fiber 104 and the RX fiber 105. The photoelectric connector 111 of each photoelectric card board 110 may include an optical array connector and a PCIe bus connector. It is also equipped with a status indicator 113 and input / output connectors. The optical fiber accommodating ferrule 112 on the photoelectric card 110 and the optical fiber accommodating ferrule 103 on the photoelectric backplane 100 can be used for accommodating the remaining optical fibers, and the detailed composition and function thereof are described below.

Please refer to FIG. 3 together. FIG. 3 is a schematic diagram of a photoelectric backplane and an optical fiber connection according to an embodiment of the present invention. As shown in FIG. 3, the optoelectronic backplane 200 has N optoelectronic connectors 210, which include a PCIe Bus connector 211, an optical array connector 212, and an input / output connector 213, respectively. When the mechanical frame (see Figure 1) accommodates the photoelectric card board (such as the photoelectric card board 110 in Figure 2), the photoelectric card board is coupled to the corresponding photoelectric connector of the photoelectric backplane 200 through its photoelectric connector, so that Light and electrical signals of the card board and the photoelectric backplane 200 can be communicated.

The optical signals transmitted from the optical card board to the optical array connectors 221 to 228 of the optical backplane 200 can be combined by the combiner A1 231, the combiner A2 251, the combiner B1 261, ... the combiner Nn 271, etc. collect. Incidentally, each optical array connector includes N + 1 optical signal contacts. In addition, the input end 232 of the combiner A1 231 has N optical fiber lines (such as optical fiber 242), and these optical fiber lines are respectively connected to specific optical signal contacts of the optical array connectors 221 to 228, such as each optical array connector. The second optical signal contacts 241, 243, 244, 245, 246, etc., where the N optical fiber lines can be numbered as T ^A x ₁₁ ~ T ^A x _1n . The combiner A1 231 can collect the optical signals of T ^A x ₁₁ ~ T ^A x _1n , and output the combined optical signal at the output terminal 233 (for example, R ^A x ₁ fiber) to another specific optical signal of the optical array connector 221 The contact point is, for example, the first optical signal contact point 234 of the optical array connector 211, that is, the optical signal to be output by the first photoelectric card board. The optical signal can collect signals of multiple wavelengths and multiple paths. However, it should be known that, for these multi-wavelength and multi-path optical signals, only single-wavelength and single-path optical signals exist. The reason and composition thereof are described in detail below.

Similarly, the input terminal 252 of the light combiner A2 251 is connected in the same way as the input terminal 232 of the light combiner A1 231, and the similarities are not repeated here. The N optical fibers of the input end 252 of the combiner A2 251 are respectively connected to specific optical signal contacts of the optical array connectors 221 to 228. For example, the N optical fibers can be respectively connected to the third optical signal contacts of the optical array connectors of the optical connectors 221 to 228, and they can be numbered as T ^A x ₂₁ to T ^A x _2n . The light combiner A2 251 can collect the optical signals of T ^A x ₂₁ to T ^A x _2n , and output it to the first optical signal contact 254 of the optical array connector 222 at the output terminal 253 (R ^A x ₂ fiber).

Similarly, the input terminal 262 of the light combiner B1 261 is connected in the same way as the input terminal 232 of the light combiner A1 231, and the similarities are not repeated here. The N optical fibers of the input end 262 of the combiner B1 261 are respectively connected to specific optical signal contacts of the optical array connectors 221 to 228. For example, the N optical fiber lines can be respectively connected to the fourth optical signal contacts of the optical array connectors of the optical connectors 221 to 228, and they can be numbered as T ^B x ₁₁ to T ^B x _1n . The light combiner B1 261 can collect the optical signals of T ^B x ₁₁ ~ T ^B x _1n , and output it to the first optical signal contact 264 of the optical array connector 223 at the output terminal 263 (R ^B x ₁ optical fiber).

By analogy, the connection of the input terminal 272 of the light combiner Nn 271 is also the same as the input terminal of the light combiner A1 231. The similarities are not repeated here. . The N optical fibers of the input end 272 of the combiner Nn271 are respectively connected to specific optical signal contacts of the optical array connectors 221 to 228. For example, the N optical fibers can be connected to the N + 1th optical signal contact of the optical array connectors of the optical connectors 221 to 228, respectively, and they can be numbered as T ^N x _n1 to T ^N x _nn . The light combiner Nn 271 can collect the optical signals of T ^N x _n1 to T ^N x _nn , and output them to the first optical signal contact 274 of the optical array connector 228 at the output terminal 273 (R ^B x ₁ fiber).

In one embodiment, when the input or output optical fiber cable of the light combiner is too long, it can be rolled up on the optical fiber receiving ferrule of the photoelectric backplane nearby. Containing the optical fiber cable in this way does not affect the transmission operation of the optical signal. In a specific embodiment, the diameter of the fiber-receiving ferrule is greater than 3.5 cm, but the present invention is not limited thereto, and it can be adjusted according to the type of the optical fiber cable.

Please refer to FIG. 4, which is a schematic diagram of a photoelectric card board according to an embodiment of the present invention. As shown in the figure, the optical card board receives optical signals through an input port (Tx fiber port) in the input / output connector 310. The optical signal will be transmitted to the wavelength demultiplexer 350 and grouped by the wavelength demultiplexer 350 into a first wavelength λ ^A , a second wavelength λ ^B , a third wavelength λ ^C , a fourth wavelength λ ^D ....., and many more. The first wavelength λ ^A ₁ is split into λ ^A ₁₁ , λ ^A ₁₂ , λ ^A ₁₃ , λ ^A ₁₄ and so on by the beam splitter 311. The second wavelength λ ^B ₁ is divided into λ ^B ₁₁ , λ ^B ₁₂ , λ ^B ₁₃ , and λ ^B ₁₄ by the beam splitter 311. The third wavelength λ ^C ₁ is split into λ ^C ₁₁ , λ ^C ₁₂ , λ ^C ₁₃ , λ ^C ₁₄ , etc. by the beam splitter 311, and so on. In one embodiment, the large wavelength band can be further subdivided into small wavelengths. In other words, λ ^A can be subdivided into multiple subgroups, such as λ ^A ₂ , λ ^A ₃ , and λ ^A ₄ . The large wavelength band is subdivided into small wavelengths and then can be split again. For example, the wavelength λ ^A ₂ can be split by the beam splitter 311 into λ ^A ₂₁ , λ ^A ₂₂ , λ ^A ₂₃ , λ ^A ₂₄ , etc.

The plurality of single-wavelength single-light signals after being split by the optical splitter can be transmitted backward through the optical splitting fiber bundle 312. At this time, the energy of all optical signals is weak due to the optical shunting effect of the wavelength demultiplexer and the beam splitter. These optical signals are respectively transmitted to a corresponding optical signal amplifier 334 through an optical fiber 313 of one of the spectral fiber bundles 312. In this embodiment, the optical signal amplifier 334 selectively amplifies or cuts off the optical signal. In detail, the optical signal amplifier 334 may have a SOA (semiconductor optical amplifier) driving circuit 335, and the SOA driving circuit 335 controls the amplified optical signal or cuts off the optical signal. Then, the optical signal amplifier 334 can transmit the amplified optical signal to one of the optical signal contacts of the optical array connector 300 through the optical fiber 314. In this embodiment, the optical fiber 314 can be bundled through the optical fiber to be a switched optical fiber bundle 321. In addition, the output optical fiber of each optical signal amplifier, such as optical fiber 322, can be respectively sent to one of the optical signal contacts 323 of the optical array connector 300 through the exchange fiber bundle 321, and then transmitted to the photoelectric backplane. Incidentally, the optical fibers of the splitting optical fiber bundle 312 and the switching optical fiber bundle 321 have excess optical fibers, which can be wound around the optical fiber containing ferrule 315 to prevent the optical fiber wires from becoming too cluttered. The optical fiber containing ferrule does not hinder the transmission of optical signals in the optical fiber. Generally, its diameter should be greater than 3.5 cm. It can be adjusted according to the type of optical fiber.

In one embodiment, a plurality of the photoelectric card plates of FIG. 4 may be installed in the mechanical frame of FIG. 1. For example, the optical array connector (Tx + Rx) for switching on the first photoelectric card board L1. For example, the optical signal of the multi-band multi-sub-wavelength Tx optical signal is L1 (λ ^A ₁₁ , λ ^A ₁₂ , λ ^A ₁₃ , Λ ^A ₁₄ , λ ^B ₁₁ , λ ^B ₁₂ , λ ^B ₁₃ , λ ^B ₁₄ , λ ^C ₁₁ , λ ^C ₁₂ , λ ^C ₁₃ , λ ^C ₁₄ , ...) and the like.

The switching optical array connector (Tx + Rx) on the second photoelectric card board L2. For example, the optical signals of the multi-band and multi-sub-wavelength Tx optical signals are L2 (λ ^A ₁₁ , λ ^A ₁₂ , λ ^A ₁₃ , λ ^A ₁₄ , Λ ^B ₁₁ , λ ^B ₁₂ , λ ^B ₁₃ , λ ^B ₁₄ , λ ^C ₁₁ , λ ^C ₁₂ , λ ^C ₁₃ , λ ^C ₁₄ , ...) and the like.

The switching optical array connector (Tx + Rx) on the third photoelectric card board L3. For example, the optical signal of the multi-band multi-sub-wavelength Tx optical signal is L3 (λ ^A ₁₁ , λ ^A ₁₂ , λ ^A ₁₃ , λ ^A ₁₄ , Λ ^B ₁₁ , λ ^B ₁₂ , λ ^B ₁₃ , λ ^B ₁₄ , λ ^C ₁₁ , λ ^C ₁₂ , λ ^C ₁₃ , λ ^C ₁₄ , ...) and the like. Similarly, the optical signals of the multi-band multi-subwavelength Tx of the fourth photoelectric card L4 and the fifth photoelectric card L5 can be deduced by analogy.

The optical backplane can receive the optical signals sent by the optical card board to be transmitted to the Tx fiber path through the optical array connector. Next, multiple optical combiners are used to combine the optical signals of the corresponding fiber paths. Referring to FIG. 3, in terms of A wavelength, the first light combiner (A1) 231 can collect optical signals L1λ ^A ₁₁ , L2λ ^A ₁₁ , L3λ ^A ₁₁ , ... L8λ ^A ₁₁ corresponding to the optical array connectors 221 to 228 Etc., or the remaining spectroscopic multi-band and multi-sub-band spectral signals, L1 (λ ^A ₁₁ , λ ^B ₁₁ , λ ^C ₁₁ , ...), L2 (λ ^A ₁₁ , λ ^B ₁₁ , λ ^C ₁₁ , ...) , L3 (λ ^A ₁₁ , λ ^B ₁₁ , λ ^C ₁₁ , ...), ... L1 (λ ^A ₂₁ , λ ^B ₂₁ , λ ^C ₃₁ , ...), L2 (λ ^A ₂₁ , λ ^B ₂₁ , λ ^C ₂₁ , …), L3 (λ ^A ₂₁ , λ ^B ₂₁ , λ ^C ₂₁ , ...), etc.

The second light combiner (A2) 251 can collect the optical signals L1λ ^A ₁₂ , L2λ ^A ₁₂ , L3λ ^A ₁₂ , ... L8λ ^A ₁₂ and so on corresponding to the optical array connectors 221 ~ 228, or each of the other multi-band multi-band A sub-band spectral signal. For example, the second light combiner 251 may collect one of the sub-bands of the optical signals divided by the multi-band and multi-sub-bands, such as L1 (λ ^A ₁₂ , λ ^B ₁₂ , λ ^C ₁₂ , ...), L2 (λ ^A ₁₂ , λ ^B ₁₂ , λ ^C ₁₂ , ...), L3 (λ ^A ₁₂ , λ ^B ₁₂ , λ ^C ₁₂ , ...), ... L1 (λ ^A ₂₂ , λ ^B ₂₂ , λ ^C ₁₂ , ...), L2 (λ ^A ₂₂ , Λ ^B ₂₂ , λ ^C ₂₂ , ...), L3 (λ ^A ₂₂ , λ ^B ₂₂ , λ ^C ₂₂ , ...), ... and so on.

The third light combiner (B1) 261 can collect the optical signals L1λ ^B ₁₃ , L2λ ^B ₁₃ , L3λ ^B ₁₃ , ... L8λ ^B ₁₃ and so on corresponding to the optical array connectors 221 to 228, or each of the other multi-band multi-band A sub-band spectral signal. For example, the third light combiner 261 may collect one of the sub-bands of the optical signals divided by the multi-band and multi-sub-bands, such as L1 (λ ^A ₁₃ , λ ^B ₁₃ , λ ^C ₁₃ , ...), L2 (λ ^A ₁₃ , λ ^B ₁₃ , λ ^C ₁₃ , ...), L3 (λ ^A ₁₃ , λ ^B ₁₃ , λ ^C ₁₃ , ...), ... L1 (λ ^A ₂₃ , λ ^B ₂₃ , λ ^C ₂₃ , ...), L2 (λ ^A ₂₃ , Λ ^B ₂₃ , λ ^C ₂₃ , ...), L3 (λ ^A ₂₃ , λ ^B ₂₃ , λ ^C ₂₃ , ...), ... and so on.

By analogy, in terms of N wavelengths, the Nth light combiner (Nn) 271 can collect the optical signals L1λ ^N _1n , L2λ ^N _1n , L3λ ^N _1n , ... L8λ ⁿ _{1n of the} corresponding optical array connectors 221 to 228 Etc., or the remaining spectral signals of multiple anti-multi-band and multi-sub-bands. For example, the N-th combiner 271 can collect one of the sub-bands of the optical signals divided by the multi-band and multi-sub-bands, such as L1 (λ ^A _1n , λ ^B _1n , λ ^C _1n , ...), ... L1 (λ ^A _2n , λ ^B _2n , λ ^C _2n , ...), etc.

Thus, the optical signal collected by the combiner 231 becomes Rx1, and is transmitted to the first photoelectric card board L1 through the optical array connector 221 of the photoelectric backplane. Similarly, the optical signal collected by the combiner A2 becomes Rx2, and is transmitted to the second photoelectric card board light L2 through the optical array connector 222 of the photoelectric backplane. The optical signal collected by the combiner B1 becomes Rx3, and is transmitted to the third photoelectric card board light L3 through the optical array connector 223 of the photoelectric backplane. The optical signal collected by the combiner Nn becomes Rxn, and is transmitted to the Nth photoelectric card board light LN through the optical array connector 228 of the photoelectric backplane, and so on. These weak light signals received from the combiners A1, A2, B1, ..., Nn are shown in FIG. 4, and are sent by the optical card boards L1 to LN through the combined light input fiber 340 of the combined light input point 343 and sent. It is amplified by the combined optical signal amplifier 344, and this amplification operation can be controlled 341 by the combined optical SOA driving circuit. The combined light output fiber 342 then sends the RX port of the optical input / output connector 310 of the photoelectric backplane for transmission. Incidentally, the controlled status of the photoelectric card board may be displayed in a status display light 360, wherein the status display light 360 may be an LED light.

Please refer to FIG. 5, which is a schematic diagram of a processor card according to an embodiment of the present invention. As shown in FIG. 5, the processor card 410 includes a processor 420, a random access memory (DRAM), a read-only memory (ROM), a flash memory, and a hard disk. The device 422, a network processor and a communication physical layer (Network PHY Processor) 421. The RJ-45 Ethernet 412 or Optical Ethernet 413 receives the signaling from the external SDN server for proper optical switching. In addition, the processor card 410 and the optoelectronic backplane 200 may be coupled by a PCIe Bus connector 411. For example, the optoelectronic backplane 200 may be disposed in the mechanical frame shown in FIG. 1, and the processor card 410 may then be electrically connected to the optoelectronic backplane 200 through the PCIe Bus connector 411 so that the processor card 410 can pass through the photoelectricity. The backplane 200 communicates with the photoelectric card board. Referring again to FIG. 4, further, the processor card 410 may control the PCIe / control circuit 331 in the photoelectric card board to indirectly control the SOA driving circuit 335 and the optical signal amplifier 334 through the electronic control bus 332 and the branch electrical control line 333. . Incidentally, the operation status of the processor card 410 may be displayed on the status display light 423, and the status display light 423 may be an LED light.

Please refer to Table 1, which is a system number of a fiber optical switch in a telecommunication or network according to an embodiment of the present invention, such as TL_FE_0001. As shown in Table 1, as long as the simple format can drive fiber switches for input and output optical switching. When the processor card 410 of FIG. 4 passes the network processor and the communication entity layer 421, the received signalling content from the SDN server is L1A1 / L3A1, which is the sub-band A1 indicating the band A of the photoelectric card L1. , Output to the sub-band A1 of the band A of the photoelectric card L3. After the processor 420 and the software of the processor card 410 are operated, the content can be exchanged through the photoelectric backplane 200 through the PCIe Bus connector 411 and transmitted to the The PCIe / control circuit 331 of the photoelectric card board L1.

Please refer to Table 2, which is a state table of an optical amplifier according to an embodiment of the present invention. As shown in Table 2, the optical signal amplifier status table is a status table that actually controls the optical switching operation. The sub-band A1 of the band A of the photoelectric card L1 has N sub-spectroscopy A11, A12, A13 ... A1N, each of which has a corresponding optical signal amplifier. Only one of the previous three optical signal amplifier status columns listed in Table 2 is in the on state, such as the optical signal amplifier status of the third column. After describing the control method of the optical signal amplifier in detail, please refer to FIG. 4 again. The PCIe / control circuit 331 of the optical card board L1 can be used as a switch of the optical signal amplifier (on / off) control. For example, the SOA driving circuit 335 can control the optical signal amplifier 334 so that the optical signal input to the optical fiber 313 is amplified or cut off. If the optical signal is amplified, the amplified optical signal can then be transmitted to one of the optical fibers 314/322 of the switching optical fiber bundle, and sent to the optical backplane 200 through the optical array connector 300 of the optical connector. Corresponding to the light combiner in the photoelectric backplane, the optical signal is transferred to the photoelectric card L3 to complete the optical exchange.

As shown in Table 1, the signaling content of the exchange output column two is L2B2 / L4B2. The sub-band B2 of the band B of the card board L2 is output to the sub-band B2 of the band B of the photoelectric board L4. As shown in Table 2, the state of the optical signal amplifier in actual operation is four, the state of the optical signal amplifier is five, the state of the optical signal amplifier is six, and the state of the optical signal amplifier is seven. Only when the optical signal amplifier status of the optical signal amplifier status column 7 is on, the work of switching the output column two can be completed. Therefore, as described above, the optical fiber optical switch of the present invention accepts the signaling of the SDN server, which is quite simple. As long as the system number and the exchange output column are available, the operation of the high-speed and high-efficiency exchange function can be completed.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change that does not depart from the technical spirit of the present invention should be included in Within the scope of the patent in this case.

To sum up, this case is not only innovative in terms of technical ideas, but also has many of the above-mentioned effects that are not used by traditional methods. It has fully met the requirements of statutory invention patents that are novel and progressive. To approve this invention patent application, to encourage invention, to the utmost convenience.

100‧‧‧Photoelectric Backplane

101‧‧‧optical connector

102‧‧‧Input / output optical signal

103‧‧‧ Optical Fiber Containment Hoop

104‧‧‧TX Fiber

105‧‧‧RX Fiber

110‧‧‧Photoelectric card board

111‧‧‧Photoelectric connector

112‧‧‧Photoelectric Containment Hoop

113‧‧‧LED display

Claims (9)

An optical fiber optical switch includes: a plurality of photoelectric card boards, which are used for dividing an optical signal inputted by an optical fiber into a light path; a photoelectric backplane, which uses a group of optical fibers, a group of combiners and A group of photoelectric connectors are connected to the photoelectric card boards and used to communicate and control the photoelectric card boards; a processor card board is used to control the photoelectric card boards to communicate with an SDN server; and a mechanical frame It is equipped with a DC power supply. The mechanical frame is used to house the optoelectronic card boards, the optoelectronic backplane and the processor card board to form the optical fiber optical switch. The optical fiber optical switch according to item 1 of the scope of patent application, wherein the photoelectric backplane comprises: a plurality of first optical connectors for connecting the optical card boards and an external optical fiber, and receiving an optical signal and To output the optical signal, each optical connector includes a first PCIe Bus connector, a first optical array connector, and a first optical fiber input / output connector; a plurality of light combiners, each of the light combiners A plurality of input ends are respectively connected to the optical array connectors, and an output end of each of the light combiners is connected to a specific optical array connector of the optical array connectors; and a plurality of first optical fibers The accommodating ferrule is used for accommodating the optical fiber and does not hinder the transmission of optical signals in the optical fiber. The optical fiber optical switch according to item 1 of the scope of the patent application, wherein each of the photoelectric card boards further includes: a second optical connector including a second PCIe Bus connector, a second optical array connector, and a first optical connector. Two optical fiber input and output connectors for communicating with the processor card and connecting The photoelectric backplane and receiving the optical signal input from the external optical fiber and outputting the optical signal; an optical demultiplexer for dividing the optical signal input from the optical fiber into a plurality of optical bands and a plurality of sub-bands; a plurality of Optical splitters that receive the optical bands and the sub-bands transmitted by the optical splitter, and respectively couple the sub-bands of each of the optical bands to an optical fiber path, wherein the optical fiber paths are collected into an optical split An optical fiber bundle, and the optical fiber paths are respectively connected to a corresponding one of the optical amplifiers; a plurality of optical amplifiers are respectively connected to the optical fiber paths, and each of the optical amplifiers has a driving control circuit to amplify the optical signal or Turn off the corresponding optical amplifier, one output fiber of each of the optical amplifiers is assembled into a switching fiber bundle and connected to the second optical array connector; a PCIe control circuit, one end of which is connected to the second PCIe A bus connector to receive a command of the processor card board through the second PCIe Bus connector, and the other end of the bus connector is connected to an electrical control bus to pass through the electrical control bus Manufacturing the drive control circuit of the optical amplifiers to amplify the optical signal or turn off the corresponding optical amplifiers; and a plurality of second optical fiber accommodating ferrules for accommodating the optical fibers and not hindering the light in the optical fibers Signal transmission. The optical fiber optical switch according to item 1 of the scope of the patent application, wherein the processor card board further includes: a third photoelectric connector, including a third PCIe Bus connector, and a plurality of RJ-45 Ethernet connectors And a plurality of optical Ethernet connectors; a photoelectric Ethernet processor with a plurality of physical layers of ports, from the RJ-45 Ethernet connectors of the third optical connector or the optical Ethernet The Ethernet connector receives an external signaling, which The external signaling is from the SDN server or other servers; and a processor for controlling the photoelectric card boards accommodated by the photoelectric backplane. The optical fiber optical switch described in item 2 of the scope of the patent application, wherein the input ends of the light combiners are respectively connected to each of the optical backplanes according to a spectroscopic number of the sub-band of the specified band. An optical array connector at the same specific joint to receive the optical signals of the sub-band specified by each of the optical card boards, wherein the telecommunication format of the optical signals includes Ethernet, synchronous fiber Network (Sonet / SDH), Optical Transmission Network (OTN). According to the optical fiber optical switch described in item 2 of the scope of patent application, wherein the output end of each light combiner is respectively connected to an output point of the first optical array connectors of the photoelectric backplane, and each The output end of the light combiner is only connected to one of the photoelectric card boards, and each of the light combiners transmits the received optical signal of the specified sub-band to the optical amplifier of the specific photoelectric card board, so as to Complete the optical signal exchange of the specified sub-band of the band. The fiber optic switch according to item 4 of the scope of patent application, wherein the processor card board receives external signaling through the first optical connector of the photoelectric backplane, and the external signaling comes from an SDN server or other servo The processor, after a software process, executes a switch command to the drive control circuit of the optical amplifier through the photoelectric backplane to the photoelectric card plates. According to the optical fiber optical switch described in item 4 of the patent application scope, wherein the processor card board receives the external signaling, the format of the external signaling includes a system number and a switching path signaling, and the switching path signaling is divided into a card version number and Light band name. The optical fiber optical switch as described in item 5 of the scope of patent application, wherein the configuration amount of the light combiners is multiplied by the number (M) of all the bands and its sub-bands by the number of the photoelectric card boards ( N) to decide.