WO2021197113A1

WO2021197113A1 - Optical module and network device

Info

Publication number: WO2021197113A1
Application number: PCT/CN2021/082212
Authority: WO
Inventors: 余成; 张发魁; 李远谋
Original assignee: 华为技术有限公司
Priority date: 2020-03-31
Filing date: 2021-03-22
Publication date: 2021-10-07
Also published as: CN113467009A; CN113467009B

Abstract

An optical module (2) and a network device, relating to the technical field of network devices, so that the network device can access more optical communication devices, thereby improving the capacity of an optical communication network. The optical module (2) comprises a housing (21), multiple optical transmission receiving components (22), and a goldfinger connector (23). One electrical interface (a) and multiple optical interfaces (b) are provided on the housing (21); the multiple optical transmission receiving components (22) are provided in the housing (21), and the multiple optical transmission receiving components (22) have one-to-one correspondence to the multiple optical interfaces (b); an optical connection end of each optical transmission receiving component (22) is separately opposite to the optical interface (b) corresponding to the optical transmission receiving component (22). The goldfinger connector (23) is located in the electrical interface (a), the goldfinger connector (23) is electrically connected to the multiple optical transmission receiving components (22), the goldfinger connector (23) comprises a substrate (231) and multiple pins (232) provided on the substrate (231), and the multiple pins (232) are arranged into multiple rows in an insertion direction of the goldfinger connector (23). The provided optical module (2) is used for achieving conversion between an optical signal and an electrical signal.

Description

Optical module and network equipment

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 202010249451.4, and the invention title is "a kind of optical module and network equipment" on March 31, 2020, the entire content of which is incorporated herein by reference Applying.

Technical field

This application relates to the technical field of network equipment, and in particular to an optical module and network equipment.

Background technique

In an optical communication network, network devices such as optical line terminals and switches realize the access of optical communication devices through optical modules connected to a single board. The more optical modules that can be connected to a single board, the more network devices can connect The more the number of optical communication devices that are imported, the greater the capacity of the optical communication network. With the rapid growth of people’s demand for information, it directly challenges the capacity of the existing optical communication network, requiring network equipment to be able to access more optical communication equipment. The width of the edge of the slot connector of the module is limited, so that the number of slot connectors that can be set on the edge is limited, so that the number of optical modules that can be connected on a single board is limited, so that network devices can access The number of optical communication equipment is limited.

Summary of the invention

The embodiments of the present application provide an optical module and a network device, so that the network device can access a larger number of optical communication devices and increase the capacity of the optical communication network.

In order to achieve the foregoing objectives, the following technical solutions are adopted in the embodiments of the present application:

In the first aspect, some embodiments of the present application provide an optical module, including a housing, a plurality of light emitting and receiving components, and a gold finger connector; the housing is provided with an electrical interface and a plurality of optical interfaces; and a plurality of light emitting and receiving components The number of the multiple light emitting and receiving components is equal to the number of the multiple optical interfaces. The multiple light emitting and receiving components correspond to the multiple optical interfaces one-to-one, and the optical connection end of each light transmitting and receiving component is connected to the The optical interfaces corresponding to the transmitting and receiving components are opposite; the golden finger connector is located in the electrical interface, and the golden finger connector is electrically connected to a plurality of light transmitting and receiving components. The golden finger connector includes a substrate and a plurality of pins arranged on the substrate. The multiple pins are arranged in multiple rows along the insertion direction of the golden finger connector.

In the optical module provided by the embodiments of the present application, since the golden finger connector of the optical module is electrically connected to a plurality of light emitting and receiving components, and because the golden finger connector includes a substrate and a plurality of pins arranged on the substrate, a plurality of lead wires The pins are arranged in multiple rows along the mating direction of the gold finger connector, so a larger number of pins can be arranged in the gold finger connector without increasing the width of the gold finger connector to make multiple light emission The receiving components can share a golden finger connector, so that multiple optical transmitting and receiving components can be integrated into one optical module, so that network equipment can access multiple optical communication devices at the same time through one optical module, thereby increasing the number of network equipment. The number of optical communication devices that can be accessed increases the capacity of the optical communication network.

Optionally, the substrate has a first surface and a second surface opposite to each other, a part of the pins of the plurality of pins are disposed on the first surface, and the remaining pins of the plurality of pins are disposed on the second surface. In this way, multiple pins are scattered on the first surface and the second surface. Without increasing the width of the gold finger connector, a larger number of pins can be set on the substrate, so that the gold finger connector can connect more. A large number of optical transmitting and receiving components can further increase the number of optical communication devices that the network device can access, and increase the capacity of the optical communication network.

Optionally, the pins on the first surface are arranged in two rows along the insertion direction of the golden finger connector, and the pins on the second surface are arranged in two rows along the insertion direction of the golden finger connector. In this way, the number of rows of pins arranged on the first surface and the second surface is moderate, which can increase the capacity of the optical communication network while reducing the footprint of the socket connector on the single board.

Optionally, the distance between two adjacent pins in each row of pins on the first surface and the second surface is 0.8 mm, and the width of each pin is 0.5 mm.

Optionally, the number of pins in each row of pins on the first surface and the second surface are equal. In other words, the number of pins in multiple rows of pins on the first surface is equal, the number of pins in multiple rows of pins on the second surface is equal, and the number of pins in each row of pins on the first surface is equal to The number of pins in each row of pins on the second surface is equal. In this way, the pins are evenly distributed on the first surface and the second surface. Without increasing the width of the gold finger connector, a larger number of pins can be set on the substrate, so that the gold finger connector can be connected to a larger number The optical transmitting and receiving components can further increase the number of optical communication devices that the network equipment can access, and increase the capacity of the optical communication network.

Optionally, the number of pins in each row of pins on the first surface and the second surface are both 11.

Optionally, along the inserting direction of the golden finger connector, on the first surface and the second surface of the substrate, a first transition structure is provided between two rows of pins adjacent to each other in the front and rear. The rows of pins are arranged at intervals, and the height of the first transition structure protruding from the surface of the substrate is equal to the height of the protruding surfaces of the two adjacent rows of pins from the substrate. In this way, the smoothing effect can be achieved by the first transition structure, so as to prevent the golden finger connector from being inserted into the socket connector from being improperly inserted or stuck.

Optionally, along the plugging direction of the golden finger connector, on the first surface and the second surface of the substrate, a row of pins near the front end of the golden finger connector is the first row of pins, and the first row of pins is The front end is uneven; among the first row of pins, the pin with the smallest distance between the front end and the front end of the golden finger connector is the first pin, and the remaining pins in the first row of pins except the first pin The side of the foot close to the front end of the golden finger connector is provided with a second transition structure. The height of the second transition structure protruding from the surface of the substrate is equal to the height of the first row of pins protruding from the surface of the substrate, and the second transition structure The front end of the structure is flush with the front end of the first pin. In this way, the second transition structure further plays the role of smoothing, so as to prevent the golden finger connector from being inserted into the socket connector from being stuck smoothly or stuck.

Optionally, the multiple pins include power pins, the power pins are electrically connected to multiple light emitting and receiving components, and the electrical connection lines between the power pins and the multiple light emitting and receiving components are serially connected with a slow-start circuit The multiple pins also include a power control pin, the power control pin is connected with the slow start circuit, the power control pin is used to transmit a switch control signal to the slow start circuit, and the switch control signal can control the switch of the slow start circuit. In this way, there is no need to set a slow start circuit on the single board, so that the structural complexity of the single board can be reduced.

Optionally, the power supply pins include multiple transmitting power pins and multiple receiving power pins; the number of the multiple transmitting power pins is equal to the number of the multiple light transmitting and receiving components, and the multiple transmitting power pins are equal to the number of light transmitting and receiving components. There is a one-to-one correspondence between the light transmitting and receiving components, and each transmitting power pin is used to supply power to the light transmitting component in the light transmitting and receiving component corresponding to the transmitting power pin; the number of multiple receiving power pins is related to the multiple light emitting The number of receiving components is equal, and multiple receiving power pins correspond to multiple light emitting and receiving components one-to-one, and each receiving power pin is used to supply the light receiving component in the light emitting and receiving component corresponding to the receiving power pin power supply. In this way, power is supplied to the light emitting components and the light receiving components of the multiple light emitting and receiving components through the multiple transmitting power pins and the multiple receiving power pins, and the power supply lines are independent of each other, which is convenient for power supply control and management.

Optionally, each row of pins on the first surface has a ground pin, and the ground pin is located at the end of the row of pins. In this way, the ground pin can play the role of electrical shielding and anti-wear protection for the signal pins in the row of pins.

Optionally, each row of pins on the second surface has a ground pin, and the ground pin is located at the end of the row of pins. In this way, the ground pin can play the role of electrical shielding and anti-wear protection for the signal pins in the row of pins.

Optionally, a plurality of light emitting and receiving components are stacked and arranged in a direction perpendicular to the substrate. In this way, the width of the entire optical module can be reduced, which is beneficial to reduce the distance between two adjacent slot connectors on a single board, so that a larger number of slot connectors can be provided on a single board to Connect a larger number of optical film blocks, thereby further increasing the number of optical communication devices that the network device can access, and increasing the capacity of the optical communication network.

Optionally, the number of multiple light emitting and receiving components is two.

Optionally, each light emitting and receiving component includes a light emitting component, a light receiving component, and a wavelength division multiplexer; the light emitting component includes a plurality of light emitting channels, and the light receiving component includes a plurality of light receiving channels. In this way, one optical transmitting component integrates multiple optical transmitting channels, and one optical receiving component integrates multiple optical receiving channels, which can further increase the number of optical communication devices that can be accessed by network devices and increase the capacity of the optical communication network.

Optionally, the optical transmitting component includes an optical transmitting channel with a rate of 1 Gbit/s and an optical transmitting channel with a rate of 10 Gbit/s, and the optical receiving component includes an optical receiving channel with a rate of 1 Gbit/s and an optical receiving channel with a rate of 10 Gbit/s. In this way, high and low speeds can be matched to meet the requirements of different connected optical communication devices for different communication speeds.

In the second aspect, some embodiments of the present application provide a network device, the network device includes a single board and an optical module; the single board is provided with a slot connector; the optical module is an optical module as described in any of the above technical solutions, and the optical module The golden finger connector of the module fits into the slot connector.

Since the optical module used in the network device of the embodiment of the present application is the same as the optical module described in any of the above technical solutions, the two can solve the same technical problem and achieve the same expected effect.

Optionally, the length of the slot connector is 11.8mm±0.5mm, the width of the slot connector is 11.5mm±0.5mm, and the height of the slot connector is 6.8mm±0.5mm.

Description of the drawings

Figure 1 is a schematic structural diagram of a network device provided by some embodiments of the application;

FIG. 2 is a schematic structural diagram of an optical module provided by some embodiments of the application;

Fig. 3 is an exploded view of the optical module shown in Fig. 2;

4 is a schematic structural diagram of a golden finger connector of an optical module provided by some embodiments of the application;

FIG. 5 is a schematic structural diagram of the golden finger connector of the optical module shown in FIG. 4 as viewed from the direction A;

6 is a schematic diagram of the back structure of the golden finger connector of the optical module shown in FIG. 4;

FIG. 7 is a structural block diagram of an optical module provided by some embodiments of the application;

8 is a schematic diagram of the structure of the first surface of the substrate of the golden finger connector of the optical module shown in FIG. 7;

FIG. 9 is a schematic structural diagram of the second surface of the substrate of the golden finger connector of the optical module shown in FIG. 7.

Reference signs:

1-single board; 11-slot connector; 2-optical module; 21-housing; 211-base; 212-cover; 22-optical transmitting and receiving component; 221-first optical transmitting and receiving component; 222-section Two light emitting and receiving components; 2211-first light emitting component; 22111-first light emitting channel; 22112-second light emitting channel; 2212-first light receiving component; 22121-first light receiving channel; 22122-second Optical receiving channel; 2213-first wavelength division multiplexer; 2221-second optical transmitting component; 22211-third optical transmitting channel; 22212-fourth optical transmitting channel; 2222-second optical receiving component; 22221-third Optical receiving channel; 22222-fourth optical receiving channel; 2223-second wavelength division multiplexer; 23-gold finger connector; 231-substrate; 2311-first surface; 2312-second surface; 232-pin; 233-first transition structure; 234-second transition structure.

Detailed ways

In the embodiments of the present application, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features.

In order to increase the number of optical communication devices that the network device can access, the number of slot connectors used to connect the optical modules on the single board can be increased, so that the single board can connect more optical modules, so as to pass the More optical modules to access more optical communication equipment. However, due to the limited width of the edge used to set the slot connector on the single board, the number of slot connectors that can be set on the single board is limited, so that the number of optical modules that can be connected to the single board is limited. The number of optical communication devices that the device can access is limited.

In order to solve this problem, the number of bi-directional optical sub-assembly (BOSA) integrated in a single optical module can be increased, and all the optical transmitter and receiver components can share a golden finger connector to communicate with the single board. Connect with a socket connector on the. In this way, a single optical module can realize the function of multiple optical modules. The optical module is only connected to one slot connector on the single board. Therefore, there is no need to increase the number of slot connectors provided on the single board. The width of the board is limited, which can increase the number of optical communication devices that the network device can access. However, since all the light emitting and receiving components in the optical module share a gold finger connector, the number of pins of the gold finger connector is larger, the width of the gold finger connector is larger, and the width of the slot connector on the board Larger, the slot connector occupies a larger width on the single board, so the number of optical communication devices that the network device can access is still limited by the width of the single board.

In order to solve this problem, an embodiment of the present application provides a network device, which includes, but is not limited to, an optical line terminal and a switch.

FIG. 1 is a schematic diagram of the structure of a network device provided by some embodiments of the application. As shown in Figure 1, the network equipment includes a single board 1 and an optical module 2. The single board 1 is also a circuit board, and the single board 1 has a complete set of circuits capable of realizing the functions of a network device. The single board 1 is provided with a slot connector 11, and the number of the slot connector 11 is at least one. FIG. 1 only shows an embodiment in which the number of the slot connector 11 is three, and does not affect the number of the slot connector 11 The quantity is limited. The number of optical modules 2 is at least one, the number of at least one optical module 2 is equal to the number of at least one slot connector 11, at least one optical module 2 corresponds to at least one slot connector 11, and each optical module 2 All of the golden finger connectors are plugged into the corresponding slot connector 11 of the optical module 2.

In the above embodiment, the size of the socket connector 11 is not specifically limited. For example, the length of the socket connector 11 (that is, the maximum width of the socket connector 11 in the insertion direction) may be 11.8 mm ± 0.5mm, the width of the slot connector 11 (that is, the maximum width of the slot connector 11 in the direction perpendicular to the insertion direction and parallel to the single board 1) can be 11.5mm±0.5mm, the slot connector The height of 11 (that is, the maximum width of the slot connector 11 in the direction perpendicular to the single board 1) may be 6.8 mm±0.5 mm.

FIG. 2 is a schematic structural diagram of an optical module 2 provided by some embodiments of the application. As shown in FIG. 2, the optical module 2 includes a housing 21. The material of the housing 21 includes, but is not limited to, metal and plastic. The housing 21 includes a base 211 and a cover 212 that are detachably connected. The housing 21 is provided with an electrical interface a and a plurality of optical interfaces b. The electrical interface a is used to connect to the slot connector 11 of the board 1. The optical interface b is used to connect an optical waveguide (such as an optical fiber), and the optical interface b includes, but is not limited to, an SC-type optical fiber interface. The number of optical interfaces b can be two, three or four, which is not specifically limited here. Fig. 2 only shows an embodiment in which the number of optical interfaces b is two, and does not limit the number of optical interfaces b.

Fig. 3 is an exploded view of the optical module shown in Fig. 2. As shown in FIG. 3, the optical module 2 further includes a plurality of light emitting and receiving components 22. A plurality of light emitting and receiving components 22 are arranged in the housing 21, the number of the plurality of light emitting and receiving components 22 is equal to the number of the plurality of optical interfaces b, and the plurality of light emitting and receiving components 22 correspond to the plurality of optical interfaces b in a one-to-one manner. The optical connection ends of each of the light emitting and receiving components 22 are opposite to the optical interface b corresponding to the light emitting and receiving component 22.

It should be noted that the optical transmitting and receiving assembly 22 includes a transmitting optical sub-assembly (TOSA), a receiving optical sub-assembly (ROSA), and a wavelength division multiplexer. The wavelength division multiplexer has a first end, a second end and a third end. The wavelength division multiplexer can couple the optical signal input from the first end to the second end output, and couple the optical signal input from the second end to the The third terminal is output, the output terminal of TOSA is connected to the first terminal of the wavelength division multiplexer, and the input terminal of ROSA is connected to the third terminal of the wavelength division multiplexer. It can be seen that the optical connection end of the optical transmitting and receiving component 22 is also the second end of the wavelength division multiplexer.

As shown in FIG. 3, the optical module 2 further includes a golden finger connector 23. The golden finger connector 23 is located in the electrical interface a, and the golden finger connector 23 is electrically connected to a plurality of light emitting and receiving components 22. FIG. 4 is a schematic structural diagram of the golden finger connector 23 of the optical module 2 provided by some embodiments of the application. As shown in FIG. 4, the golden finger connector 23 includes a substrate 231 and a plurality of pins 232 arranged on the substrate 231, and the plurality of pins 232 are arranged in multiple rows along the insertion direction of the golden finger connector 23.

In the optical module provided by the embodiment of the present application, since the golden finger connector 23 of the optical module 23 is electrically connected to a plurality of light emitting and receiving components 22, and because the golden finger connector 23 includes a substrate 231 and a plurality of Pins 232, multiple pins 232 are arranged in multiple rows along the plugging direction of the golden finger connector 23, so it is possible to provide more in the golden finger connector 23 without increasing the width of the golden finger connector 23 A large number of pins, so that multiple optical transmitting and receiving components 22 can share a golden finger connector 23, so that multiple optical transmitting and receiving components 22 can be integrated into one optical module 2, so that network devices can pass through one optical module 2. Simultaneous access to multiple optical communication devices can increase the number of optical communication devices that the network device can access, and increase the capacity of the optical communication network.

The plurality of pins 232 may be provided on one surface of the substrate 231 or may be provided on two surfaces of the substrate 231, which is not specifically limited herein. In some embodiments, FIG. 5 is a schematic structural diagram of the golden finger connector of the optical module shown in FIG. 4 viewed from the direction A, and FIG. 6 is a schematic structural diagram of the backside of the golden finger connector of the optical module shown in FIG. 4. As shown in FIGS. 4, 5, and 6, the substrate 231 has a first surface 2311 and a second surface 2312 opposite to each other. Some of the plurality of pins 232 are provided on the first surface 2311, and the plurality of pins 232 The rest of the pins are arranged on the second surface 2312. In this way, a plurality of pins 232 are dispersedly arranged on the first surface 2311 and the second surface 2312. Without increasing the width of the golden finger connector 23, a larger number of pins can be provided on the substrate 231, so that the golden finger is connected. The device 23 can be connected to a larger number of optical transmitting and receiving components 22, thereby further increasing the number of optical communication devices that the network device can access, and increasing the capacity of the optical communication network.

In the foregoing embodiment, the pins on the first surface 2311 may be arranged in two rows, three rows or four rows along the insertion direction of the golden finger connector 23, which is not specifically limited here. As the number of rows of pins arranged on the first surface 2311 increases, the greater the length of the golden finger connector 23 along the insertion direction, the greater the length of the matching socket connector 11 along the insertion direction. The larger the occupied area on board 1. In order to increase the capacity of the optical communication network while reducing the footprint of the slot connector 11 on the single board 1, in some embodiments, as shown in FIG. 4, the pins on the first surface 2311 are along the golden fingers. The connectors 23 are arranged in two rows in the insertion direction, which are two rows arranged along the two dashed lines in FIG. 4. In this way, the number of rows of pins arranged on the first surface 2311 is moderate, which can increase the capacity of the optical communication network while reducing the board area occupied by the socket connector 11 on the single board 1.

Similarly, the pins on the second surface 2312 can be arranged in two rows, three rows or four rows along the insertion direction of the golden finger connector 23, which is not specifically limited here. As the number of rows of pins arranged on the second surface 2312 increases, the greater the length of the golden finger connector 23 along the insertion direction, the greater the length of the matching socket connector 11 along the insertion direction, and The larger the occupied area on board 1. In order to increase the capacity of the optical communication network while reducing the footprint of the socket connector 11 on the single board 1, in some embodiments, as shown in FIG. 6, the pins on the second surface 2312 are along the golden fingers. The connectors 23 are arranged in two rows in the insertion direction, which are respectively two rows arranged along the two dotted lines in FIG. 6. In this way, the number of rows of pins arranged on the second surface 2312 is moderate, which can increase the capacity of the optical communication network while reducing the board area occupied by the socket connector 11 on the single board 1.

In some embodiments, the distance between two adjacent pins in each row of pins on the first surface 2311 and the second surface 2312 is 0.8mm, and the width of each pin (that is, the distance along the pin is 0.8mm). The width in the arrangement direction of a row of pins at) is 0.5mm.

The number of pins in the rows of pins on the first surface 2311 and the second surface 2312 may be equal or different, which is not specifically limited here. In some embodiments, as shown in FIGS. 4 and 6, the number of pins in each row of pins on the first surface 2311 and the second surface 2312 are equal. In other words, the number of pins in multiple rows of pins on the first surface 2311 is equal, and the number of pins in multiple rows of pins on the second surface 2312 is equal, and the number of pins in each row of pins on the first surface 2311 is the same. The number is equal to the number of pins in each row of pins on the second surface 2312. In this way, the pins are evenly distributed on the first surface 2311 and the second surface 2312. Without increasing the width of the gold finger connector 23, a larger number of pins can be provided on the substrate 231, so that the gold finger connector 23 A larger number of optical transmitting and receiving components 22 can be connected, so that the number of optical communication devices that the network device can access can be further increased, and the capacity of the optical communication network can be improved.

In the foregoing embodiment, the number of pins in each row of pins on the first surface 2311 and the second surface 2312 may be 9, 10, 11, or 12, which is not specifically limited here. In some embodiments, as shown in FIGS. 4 and 6, the number of pins in each row of pins on the first surface 2311 and the second surface 2312 is 11.

Among the multiple pins 232, the lengths of the pins used to implement different functions are usually different. For example, the length of the ground pin is usually greater than the length of the power pin, and the length of the power pin is usually greater than the length of the signal pin. When multiple pins with different lengths are arranged in a row, as shown in Figs. 4 and 6, they are usually arranged based on the midpoint of the pins along their length. In this way, there will be gaps between the two adjacent rows of pins and the front side of the front row of pins. These gaps will cause the golden finger connector 23 to be inserted into the socket connector 11 incorrectly or incorrectly. Stuck and other situations.

In order to avoid the above situation, in some embodiments, as shown in FIGS. 4 and 6, along the insertion direction of the golden finger connector 23, the first surface 2311 and the second surface 2312 of the substrate 231 are adjacent to each other in two rows. A first transition structure 233 is provided between the pins. The first transition structure 233 is spaced apart from two rows of pins adjacent to each other in the front and rear, and the height of the first transition structure 233 protruding from the surface of the substrate 231 is adjacent to the front and rear. The heights of the two rows of pins protruding from the surface of the substrate 231 are equal. In this way, the first transition structure 233 can play a smoothing effect, so as to prevent the golden finger connector 23 from being inserted into the socket connector 11 without being smoothly inserted or stuck.

In some embodiments, as shown in FIGS. 4 and 6, along the insertion direction of the golden finger connector 23, one of the first surface 2311 and the second surface 2312 of the substrate 231 is close to the front end of the golden finger connector 23. The row of pins is the first row of pins c. The front ends of the pins c of the first row are not flush. In the first row of pins c, the pin with the smallest distance between the front end and the front end of the golden finger connector 23 is the first pin d, and the rest of the first row of pins c except the first pin d The side of the pins close to the front end of the golden finger connector 23 is provided with a second transition structure 234. The height of the second transition structure 234 protruding from the surface of the substrate 231 and the height of the first row of pins c protruding from the surface of the substrate 231 They are equal, and the front end of the second transition structure 234 is flush with the front end of the first pin d. In this way, the second transition structure 234 further has a smoothing effect, so as to prevent the golden finger connector 23 from being inserted into the socket connector 11 from being stuck smoothly or stuck.

FIG. 8 is a definition diagram of the pins on the first surface 2311 of the substrate 231 of the gold finger connector 23 of the optical module 2 provided by some embodiments of the application, and FIG. 9 is the gold finger of the optical module 2 provided by some embodiments of the application The definition diagram of the pins on the second surface 2312 of the substrate 231 of the connector 23. In some embodiments, as shown in FIGS. 8 and 9, the plurality of pins 232 include power pins (for example, including VCCR0, VCCT0, VCCR1, VCCT1), and the power pins are electrically connected to the plurality of light emitting and receiving components 22 And a slow-start circuit (not shown in the figure) is connected in series in the electrical connection line between the power pin and the plurality of light emitting and receiving components 22. The multiple pins 232 also include a power control pin (such as Pow_Ctrl in FIG. 8), which is connected to the slow start circuit, and the power control pin is used to transmit a switch control signal to the slow start circuit, and is controlled by the switch The signal can control the switch of the slow start circuit. In this way, there is no need to provide a slow start circuit on the single board 1, so that the structural complexity of the single board 1 can be reduced.

In some embodiments, as shown in FIGS. 8 and 9, the power supply pins include multiple transmit power pins (such as VCCT0 and VCCT1) and multiple receive power pins (such as VCCR0 and VCCR1). The number of multiple transmitting power pins is equal to the number of multiple light transmitting and receiving components 22, and the multiple transmitting power pins correspond to the multiple light transmitting and receiving components 22 one-to-one, and each transmitting power pin is used to The light emitting component in the light emitting and receiving component 22 corresponding to the emitting power pin transmits power. The number of the multiple receiving power pins is equal to the number of the multiple light emitting and receiving components 22, and the multiple receiving power pins are in one-to-one correspondence with the multiple light emitting and receiving components 22, and each receiving power pin is used for receiving The light receiving component in the light emitting and receiving component 22 corresponding to the power pin supplies power. In this way, power is supplied to the light emitting components and the light receiving components of the multiple light emitting and receiving components through the multiple transmitting power pins and the multiple receiving power pins, and the power supply lines are independent of each other, which is convenient for power supply control and management.

In some embodiments, as shown in FIG. 8, each row of pins on the first surface 2311 has a ground pin (GND), and the ground pin is located at the end of the row of pins. In this way, the ground pin can play the role of electrical shielding and anti-wear protection for the signal pins in the row of pins.

In some embodiments, as shown in FIG. 9, each row of pins on the second surface 2312 has a ground pin (GND), and the ground pin is located at the end of the row of pins. In this way, the ground pin can play the role of electrical shielding and anti-wear protection for the signal pins in the row of pins.

The plurality of light emitting and receiving components 22 may be arranged side by side in the housing 21, or may be stacked and arranged, which is not specifically limited herein. In some embodiments, as shown in FIG. 3, a plurality of light emitting and receiving components 22 are stacked and arranged in a direction perpendicular to the substrate 231. In this way, the width of the entire optical module 2 can be reduced, which is beneficial to reduce the distance between two adjacent slot connectors on the single board 1, so that a larger number of slot connections can be set on the single board 1. To connect a larger number of optical film blocks 2, thereby further increasing the number of optical communication devices that can be accessed by network devices and increasing the capacity of the optical communication network.

The number of the multiple light emitting and receiving components 22 may be two, three, four, etc., which is not specifically limited here. In some embodiments, as shown in FIG. 3, the number of the plurality of light emitting and receiving components 22 is two.

It can be seen from the foregoing description that the light emitting and receiving component 22 includes a light emitting component, a light receiving component, and a wavelength division multiplexer. The light emitting component may include one light emitting channel or multiple light emitting channels, which is not specifically limited here. The light receiving component may include one light receiving channel or multiple light receiving channels, which is not specifically limited here.

In some embodiments, the light emitting component includes a plurality of light emitting channels, and the wavelengths of light emitted by the plurality of light emitting channels should be distinguished, for example, a light emitting channel including light with a wavelength of 1577nm and a light emitting channel with a wavelength of 1490nm. aisle. In this way, one optical transmitting component integrates multiple optical transmitting channels, which can further increase the number of optical communication devices that can be accessed by network devices, and increase the capacity of the optical communication network.

In the foregoing embodiment, the emission rates of the multiple light emission channels may be the same or different, which is not specifically limited here. In addition, the emission rate of the multiple optical emission channels may be 1 Gbit/s, 5 Gbit/s, or 10 Gbit/s, which is not specifically limited here. In some embodiments, the light emitting component includes a light emitting channel with a rate of 1 Gbit/s and a light emitting channel with a rate of 10 Gbit/s. In this way, high- and low-speed matching can be realized to meet the needs of different optical communication devices connected.

In some embodiments, the light receiving component includes multiple light receiving channels. The wavelengths of light received by the multiple light receiving channels should be distinguished. For example, the light receiving channel includes light with a wavelength of 1310nm and light receiving with a wavelength of 1270nm. aisle. In this way, an optical receiving component integrates multiple optical receiving channels, which can further increase the number of optical communication devices that the network device can access, and increase the capacity of the optical communication network.

In the foregoing embodiment, the receiving rates of the multiple optical receiving channels may be the same or different, which is not specifically limited here. In addition, the receiving rate of the multiple optical receiving channels may be 1 Gbit/s, 5 Gbit/s, or 10 Gbit/s, which is not specifically limited here. In some embodiments, the optical receiving component includes an optical receiving channel with a rate of 1 Gbit/s and an optical receiving channel with a rate of 10 Gbit/s. In this way, high and low speeds can be matched to meet the requirements of different connected optical communication devices for different communication speeds.

FIG. 7 is a structural block diagram of an optical module 2 provided by some embodiments of the application. As shown in FIG. 7, the number of light emitting and receiving components 22 integrated in the optical module 2 is two, and the two light emitting and receiving components 22 are a first light emitting and receiving component 221 and a second light emitting and receiving component 222 respectively. The first light emitting and receiving component 221 includes a first light emitting component 2211, a first light receiving component 2212, and a first wavelength division multiplexer 2213, and the first light emitting component 2211 includes a first light emitting channel 22111 and a second light emitting channel 22112. The first light receiving component 2212 includes a first light receiving channel 22121 and a second light receiving channel 22122. The second light emitting and receiving component 222 includes a second light emitting component 2221, a second light receiving component 2222, and a second wavelength division multiplexer 2223, and the second light emitting component 2221 includes a third light emitting channel 22211 and a fourth light emitting channel 22212. The second light receiving component 2222 includes a third light receiving channel 22221 and a fourth light receiving channel 22222. The first optical emission channel 22111 and the third optical emission channel 22211 are optical emission channels with a rate of 1 Gbit/s. The first optical receiving channel 22121 and the third optical receiving channel 22221 are optical receiving channels with a rate of 1 Gbit/s. The second optical emission channel 22112 and the fourth optical emission channel 22212 are optical emission channels with a rate of 10 Gbit/s. The second optical receiving channel 22122 and the fourth optical receiving channel 22222 are optical receiving channels whose receiving rate can be selected between 5 Gbit/s and 10 Gbit/s.

8 is a schematic structural view of the first surface 2311 of the substrate 231 of the golden finger connector 23 of the optical module 2 shown in FIG. 7, and FIG. 9 is the second surface 2311 of the substrate 231 of the golden finger connector 23 of the optical module 2 shown in FIG. Schematic diagram of the structure of the surface 2312. It can be seen from FIGS. 8 and 9 that the serial numbers (marked in FIGS. 8 and 9), names and functions of the pins on the golden finger connector 23 are as shown in Table 1. This structure is simple and easy to implement.

Table 1

It should be noted that Table 1 only provides an example of the definition of the pin 232, and does not limit the embodiment of the present application.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

An optical module, characterized in that it comprises:

The shell is provided with an electrical interface and multiple optical interfaces;

A plurality of light emitting and receiving components are arranged in the housing, the number of the plurality of light emitting and receiving components is equal to the number of the plurality of optical interfaces, and the plurality of light emitting and receiving components are connected to the plurality of optical interfaces One-to-one correspondence, the optical connection end of each light emitting and receiving component is opposite to the corresponding optical interface of the light emitting and receiving component;

The golden finger connector is located in the electrical interface, the golden finger connector is electrically connected to the plurality of light emitting and receiving components, and the golden finger connector includes a substrate and a plurality of pins arranged on the substrate , The multiple pins are arranged in multiple rows along the insertion direction of the golden finger connector.
The optical module according to claim 1, wherein the substrate has a first surface and a second surface opposite to each other, a part of the pins of the plurality of pins are disposed on the first surface, and the plurality of pins are disposed on the first surface. The remaining pins among the three pins are arranged on the second surface.
The optical module according to claim 2, wherein the pins on the first surface are arranged in two rows along the insertion direction of the golden finger connector, and the pins on the second surface are arranged along the The insertion directions of the golden finger connectors are arranged in two rows.
The optical module according to claim 2 or 3, wherein the number of pins in each row of pins on the first surface and the second surface are equal.
The optical module according to claim 4, wherein the number of pins in each row of pins on the first surface and the second surface are both 11.
The optical module according to any one of claims 2-5, wherein along the insertion direction of the golden finger connector, on the first surface and the second surface of the substrate, two rows are adjacent to each other. A first transition structure is provided between the pins, and the first transition structure is spaced apart from the two rows of pins adjacent to the front and rear. The height of the first transition structure protruding from the surface of the substrate is equal The heights of the two adjacent rows of pins protruding from the surface of the substrate are equal.
The optical module according to any one of claims 2-6, wherein along the insertion direction of the golden finger connector, on the first surface and the second surface of the substrate, close to the golden finger A row of pins at the front end of the connector is the first row of pins, and the front ends of the first row of pins are not flush;

In the first row of pins, the pin with the smallest distance between the front end and the front end of the golden finger connector is the first pin, and the first row of pins except for the first pin The remaining pins on the side close to the front end of the golden finger connector are provided with a second transition structure, and the height of the second transition structure protruding from the surface of the substrate is the same as the protruding position of the first row of pins. The height of the first surface is equal, and the front end of the second transition structure is flush with the front end of the first pin.
The optical module according to any one of claims 1-7, wherein the plurality of pins comprise power pins, and the power pins are electrically connected to the plurality of light emitting and receiving components, and A slow-start circuit is connected in series in the electrical connection line between the power supply pin and the plurality of light emitting and receiving components;

The multiple pins further include:

The power control pin is connected to the slow start circuit, and the power control pin is used to transmit a switch control signal to the slow start circuit.
The optical module according to claim 8, wherein the power supply pin comprises a plurality of transmitting power pins and a plurality of receiving power pins;

The number of the multiple transmitting power pins is equal to the number of the multiple light transmitting and receiving components, and the multiple transmitting power pins are in one-to-one correspondence with the multiple light transmitting and receiving components, and each transmitting power source leads The pins are all used to supply power to the light emitting component in the light emitting and receiving component corresponding to the transmitting power pin;

The number of the plurality of receiving power supply pins is equal to the number of the plurality of light emitting and receiving components, and the plurality of receiving power supply pins corresponds to the plurality of light emitting and receiving components one-to-one, and each receiving power supply leads The pins are all used to supply power to the light receiving component in the light emitting and receiving component corresponding to the receiving power pin.
8. The optical module according to any one of claims 1-9, wherein the plurality of light emitting and receiving components are stacked and arranged in a direction perpendicular to the substrate.
The optical module according to any one of claims 1-10, wherein the number of the plurality of light emitting and receiving components is two.
The optical module according to any one of claims 1-11, wherein each of the light emitting and receiving components includes a light emitting component, a light receiving component, and a wavelength division multiplexer;

The light emitting component includes a plurality of light emitting channels, and the light receiving component includes a plurality of light receiving channels.
A network device, characterized in that it comprises:

Single board with slot connector;

The optical module according to any one of claims 1-12, wherein the golden finger connector of the optical module fits and plugs into the socket connector.