CN215375869U - XFP optical module - Google Patents

Abstract

The application provides an XFP optical module, include: photoelectric part, drain pan, epitheca, gland, sliding lock and pull ring, flexible circuit area welding in TOSA and ROSA constitutes photoelectric part in the solder joint of function circuit board, and the drain pan forms the cavity with the epitheca assembly and is used for holding fixed photoelectric part, and sliding lock slidable assembles in the cavity that drain pan, epitheca and gland assembly formed under the promotion of pull ring for shell fragment lock among the jack-up metal cage is to optical module unblock, and makes self and pull ring reset under reset spring's effort. Based on the XFP optical module provided by the application, the photoelectric part is firmly installed in a cavity formed by the bottom shell and the upper shell; the sliding lock enables the optical module to be unlocked smoothly, and the sliding lock and the pull ring reset smoothly under the action of the reset spring after unlocking is finished; photoelectric unit, drain pan, epitheca, gland, sliding lock and pull ring assembly and disassembly are convenient, and drain pan, epitheca, gland, sliding lock and pull ring can reuse, practice thrift the cost.

Description

XFP optical module

Technical Field

The application relates to the technical field of optical communication, in particular to an XFP optical module.

Background

The steady development of the global telecommunication industry and the steady growth of broadband users lay a solid foundation for the development of the optical communication industry. With the continuous improvement of the global bandwidth demand and the expansion of the application fields of data centers and security monitoring optical communication industries, the optical fiber broadband access has become the mainstream communication mode. Under the promotion of popularization of terminals such as smart phones and the like and applications such as video and cloud computing, telecom operators continuously invest in building and upgrading mobile broadband networks and optical fiber broadband networks, and the investment scale of optical communication equipment is further enlarged.

The rapid development of the optical communication industry drives the updating of the optical module. Under the market competition environment where optical communication is increasingly intense at present, the demand of communication equipment for reducing the size of the equipment and increasing the interface density is also increasing. In order to meet the requirement, the optical module is also developed towards a small package with high integration level, various high-cost optical modules are more and more, the structure is complex, the requirement on the photoelectric part is high, and heavier economic cost is brought to enterprises and users, so that the optical module with a simple structure and low cost is needed to meet the requirements of part of enterprises and users. Therefore, there is a need for an optical module, in which an optical portion can be stably accommodated in an optical module cavity, and an LC optical fiber Connector (Lucent Connector or Local Connector, Lucent Connector) can be smoothly latched or unlatched to the optical module for transmitting and receiving optical signals; the optical module shell and the photoelectric part are simply and quickly assembled; and the cost of the optical module is low.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present invention are directed to provide an Optical module with a simple structure and low cost, so that a TOSA (transmissive Optical Sub-Assembly), a ROSA (Receiving Optical Sub-Assembly), a functional circuit board, and the like of the Optical module are fixed in a cavity of the Optical module, and an LC Optical fiber connector is plugged into an Optical fiber port of the Optical module to be in butt joint with the TOSA and the ROSA for signal transmission.

To achieve the above object, an embodiment of the present invention provides an XFP (10Gb Small Form-factor plug, 10Gb miniaturized package hot-Pluggable) optical module, including: photoelectric part, drain pan, epitheca, gland, sliding lock and pull ring, flexible circuit area welding in TOSA and ROSA constitutes photoelectric part in the solder joint of function circuit board, and the drain pan forms the cavity with the epitheca assembly and is used for holding fixed photoelectric part, and sliding lock slidable assembles in the cavity that drain pan, epitheca and gland assembly formed under the promotion of pull ring for shell fragment lock among the jack-up metal cage is to optical module unblock, and makes self and pull ring reset under reset spring's effort.

The photoelectric part is provided with a functional circuit board, a TOSA (transmitter optical subassembly) and a ROSA (receiver optical subassembly), wherein one end of the functional circuit board is provided with a welding spot, the other end of the functional circuit board is provided with a golden finger, screw holes are formed in two sides of the functional circuit board, flexible circuit belts are arranged on the TOSA and the ROSA, the flexible circuit belts of the TOSA and the ROSA are welded to the welding spot on the functional circuit board, so that the functional circuit board, the TOSA and the ROSA are welded into a whole to form the photoelectric part, the optical module is inserted and locked in a metal cage in a host device, the golden finger is inserted and connected to an electric connector in the host device, and the functional circuit board and the host device perform electric signal transmission;

the bottom shell is symmetrically provided with accommodating spaces at two sides of the shell, one end of the shell is symmetrically provided with an optical fiber port, one end of the outer bottom surface of the shell is provided with a positioning pin, a clamping block groove is formed in the shell, the accommodating spaces are provided with a locking surface, a spring groove and a part of rotating holes, the locking surface is in locking fit with a spring sheet in a metal cage to lock the optical module in the metal cage, the spring groove is used for accommodating a reset spring, the optical fiber port is provided with a clamping locking surface, an LC optical fiber connector is inserted into the optical fiber port, the clamping locking surface is abutted against a locking block in the LC optical fiber connector to lock the LC optical fiber connector in the optical fiber port, and the TOSA and the ROSA are abutted to carry out optical signal transmission;

the upper shell is provided with a stop surface at one end of the shell, a clamping and pressing surface at the other end of the shell, and the stop surface abuts against a stop surface in the metal cage to prevent the optical module from being excessively inserted into the metal cage, so that a golden finger in the functional circuit board is in good contact with an electric connection elastic sheet in the metal cage, and the golden finger and the electric connection elastic sheet are protected;

the gland is provided with a positioning hole, a partial rotating hole and a screw hole, the positioning hole is matched and positioned with the positioning pin of the bottom shell, and a screw penetrates through the screw hole of the gland and is screwed in the threaded hole in the bottom shell, so that the partial rotating hole of the gland and the partial rotating hole of the bottom shell are assembled to form a complete rotating hole;

the sliding lock is provided with a cross beam and a sliding rod, the sliding rod is symmetrically arranged on two sides of the cross beam and accommodated in the accommodating space, the sliding rod is provided with an unlocking block, a spring block and a stopping surface, the unlocking block jacks up a spring sheet lock in a metal cage clamped on the locking surface when sliding forwards in the accommodating space so as to unlock the optical module, the spring block is accommodated in the spring groove and seals a return spring in the spring groove;

the pull ring is provided with a handheld beam and side arms, the side arms are symmetrically arranged on two sides of the handheld beam, the handheld beam is provided with direction grooves, the direction grooves are used for marking that the optical fiber ports are light emitting optical fiber ports or light receiving optical fiber ports, different colors are filled in groove bodies of the direction grooves and used for marking different working wavelengths of the optical module, the side arms are provided with rotating shafts, sliding surfaces and stop surfaces, the rotating shafts are clamped in the complete rotating holes and provide rotating fulcrums of the pull ring, the sliding surfaces are matched with the stop surfaces on the sliding rods, when the pull ring rotates, the sliding surfaces push the stop surfaces to further push the sliding lock to slide forwards, the unlocking blocks push elastic sheet locks in metal cages clamped on the stop surfaces to be separated from the stop surfaces, the optical module is unlocked, and when the pull ring rotates to the stop surfaces to be abutted against the stop surfaces, the pull ring stops rotating, the pull ring cannot be damaged due to excessive rotation, the pull ring is pulled outwards, and the optical module exits from the metal cage.

Foretell XFP optical module, locating surface, mount table and mark the arch under the drain pan still is equipped with in the casing is inside, is equipped with the label groove in the outside bottom surface of casing, the epitheca is equipped with the locating surface in the casing is inside, the mount table is equipped with the screw hole, down the locating surface with go up locating surface cooperation card and press functional circuit board adopts the screw to penetrate functional circuit board's screw hole soon in screw hole in the mount table will functional circuit board installation is fixed in the optical module cavity, it is used for marking company's LOGO and optical module date of production to mark the arch, the label groove is used for pasting the label description of optical module.

In the XFP optical module, the optical module is further provided with an upper fixture block, a lower fixture block and a protection plug, and the fixture pressing surface is matched with the fixture block groove to package a complete fixture block formed by the upper fixture block and the lower fixture block in the optical module cavity for clamping the TOSA and the ROSA. The protection plug is in optical module off-working condition cartridge is in the optical fiber mouth, the protection TOSA and ROSA, the protection plug is equipped with LOGO arch and non-slip raised, the LOGO arch is used for marking company LOGO, non-slip raised increases the finger when extracting the protection plug with the frictional force of protection plug, in order to extract smoothly the protection plug.

Based on the XFP optical module provided by the application, the photoelectric part is firmly installed in a cavity formed by the bottom shell and the upper shell; the sliding lock enables the optical module to be unlocked smoothly, and the sliding lock and the pull ring reset smoothly under the action of the reset spring after unlocking is finished; photoelectric unit, drain pan, epitheca, gland, sliding lock and pull ring assembly and disassembly are convenient, and drain pan, epitheca, gland, sliding lock and pull ring can reuse, practice thrift the cost.

Drawings

Fig. 1 is an exploded view of an XFP optical module according to an embodiment of the present disclosure;

fig. 2 is an exploded view of an XFP optical module according to an embodiment of the present application;

fig. 3 is a first assembly diagram of an XFP optical module according to an embodiment of the present disclosure;

fig. 4 is a second assembly schematic diagram of an XFP optical module according to an embodiment of the present disclosure;

fig. 5 is a third assembly schematic view (an unlocked state) of an XFP optical module according to an embodiment of the present application;

fig. 6 is a fourth assembly schematic diagram (with an upper case and a protection plug removed) of an XFP optical module according to an embodiment of the present disclosure;

fig. 7 is a schematic view illustrating a welding assembly of an optical and electrical unit according to an embodiment of the XFP optical module of the present application;

fig. 8 is a schematic diagram of a functional circuit board in an optoelectronic portion of an XFP optical module according to an embodiment of the present application;

fig. 9 is a first schematic bottom view of an XFP optical module according to an embodiment of the present disclosure;

fig. 10 is a second schematic view of a bottom case of an XFP optical module according to an embodiment of the present application;

fig. 11 is a first schematic view of an upper case of an XFP optical module according to an embodiment of the present disclosure;

fig. 12 is a second schematic view of an upper case of an XFP optical module according to an embodiment of the present application;

fig. 13 is a capping schematic diagram of an embodiment of an XFP optical module according to the present application;

FIG. 14 is a schematic view of a slide lock of an embodiment of an XFP optical module according to the present application;

fig. 15 is a first pull ring schematic diagram of an XFP optical module according to an embodiment of the present disclosure;

fig. 16 is a second pull ring schematic diagram of an XFP optical module according to an embodiment of the present disclosure;

fig. 17 is a schematic diagram of a protection plug of an XFP optical module according to an embodiment of the present application;

FIG. 18 is a schematic view of an LC fiber optic connector mated with an embodiment of an XFP optical module of the present application;

FIG. 19 is a first schematic diagram of a metal cage of an embodiment of an XFP optical module of the present application fitted;

fig. 20 is a second schematic diagram of a metal cage which is cooperatively assembled according to an embodiment of the XFP optical module of the present application;

fig. 21 is a third schematic diagram of a metal cage which is cooperatively assembled according to an XFP optical module of the present application.

The reference numerals are explained below:

100 bottom shell

110 receiving space 111 locking surface 112 spring groove 113 partial rotating hole 120 optical fiber opening 121 locking surface

130 alignment pin 140, lower alignment surface 160 mounting block 150, screw hole 170 marking boss 180, label channel 191, screw hole 192, screw hole 193, screw hole 170, and threaded hole 170 of mounting block 161

200 upper case

210 stop surface 220 clamping and pressing surface 230 upper positioning surface 241 screw hole 242 threaded hole

300 pressing cover

310 positioning hole 320 partial rotation hole 330 screw hole

400 sliding lock

410 crossbeam 420 slide bar 421 unlocking block 422 spring block 423 stopping surface

500 pull ring

510 hand-held beam 511 direction slot 520 side arm 521 rotation axis 522 sliding surface 523 stop surface

600 photoelectric part

610 functional circuit board 611 welding point 612 golden finger 613 screw hole 620TOSA 621 flexible circuit strip 630 ROSA

710 upper fixture block 720 lower fixture block

810 return spring 820 screw 830 protection plug 831 LOGO boss 832 anti-slip boss

910 LC fiber connector 911 locking block 912 unlocking block 920 metal cage 921 spring lock 922 stop face 923 electric connecting spring 924 clamping frame 925 heat sink

Detailed Description

Specific embodiments of the present application will be described in detail below. It should be noted that the embodiments described herein are for illustration only. And are not intended to limit the present application.

As shown in fig. 1 to 6, screws 820 are inserted into screw holes 192 of bottom case 100 and screwed into screw holes 242 in upper case 200, screws 820 are inserted into screw holes 241 of upper case 200 and screwed into screw holes 191 in bottom case 100, and bottom case 100 and upper case 200 are assembled and fixed together to form an optical module cavity for receiving and fixing photoelectric part 600, upper fixture block 710 and lower fixture block 720.

Referring to fig. 7 and 8, the optoelectronic component 600 includes a functional circuit board 610, a TOSA620 and a ROSA630, the functional circuit board 610 has a solder point 611 at one end and a gold finger 612 at the other end, screw holes 613 are formed at both sides, the TOSA620 and the ROSA630 have flexible circuit tapes 621, the flexible circuit tapes 621 of the TOSA620 and the ROSA630 are soldered to the solder point 611 on the functional circuit board 610, so that the functional circuit board 610, the TOSA620 and the ROSA630 are soldered into an integral component to form the optoelectronic component 600, the optical module is inserted and locked in a metal cage 920 in the host device, the gold finger 612 is inserted and connected to an electrical connector 923 in the host device, and the functional circuit board 610 performs electrical signal transmission with the host device.

Referring to fig. 9 and 10, the bottom housing 100 is symmetrically provided with receiving spaces 110 at two sides of the housing, an optical fiber port 120 is symmetrically provided at one end of the housing, a positioning pin 130 is provided at one end of an outer bottom surface of the housing, a locking block groove 140 is provided inside the housing, the receiving space 110 is provided with a locking surface 111, a spring groove 112 and a partial rotation hole 113, the locking surface 111 cooperates with a spring lock 921 in a metal cage 920 to lock the optical module in the metal cage 920, the spring groove 112 receives a return spring 810, the optical fiber port 120 is provided with a locking surface 121, the locking surface 121 cooperates with a locking block 911 in an LC optical fiber connector 910 to lock the LC optical fiber connector 910 in the optical fiber port 120, and the TOSA620 and the ROSA630 are abutted for transmitting or receiving optical signals, the locking block groove 140 is used for receiving an upper locking block 710 and a lower locking block 720, and the upper locking block 710 and the lower locking block 720 cooperate to form a complete locking block for locking the TOSA620 and the ROSA 630.

As shown in fig. 11 and 12, the upper shell 200 is provided with a stop surface 210 at one end of the shell, and a clamping and pressing surface 220 at the other end of the shell, and the stop surface 210 abuts against a stop surface 922 in the metal cage 920 to prevent the optical module from being excessively inserted into the metal cage 920, so that the gold finger 612 in the functional circuit board 610 is in good contact with the electrical connection elastic sheet 923 in the metal cage 920, and the clamping and pressing surface 220 cooperates with the clamping block groove 140 to encapsulate a complete clamping block formed by the cooperation of the upper clamping block 710 and the lower clamping block 720 in the optical module cavity.

Referring to fig. 13, the pressing cover 300 is provided with a positioning hole 310, a partial rotation hole 320 and a screw hole 330, the positioning hole 310 is matched and positioned with the positioning pin 130 of the bottom case 100, and a screw 820 is inserted into the screw hole 330 of the pressing cover 300 and screwed into the screw hole 193 in the bottom case 100, so that the partial rotation hole 320 of the pressing cover 300 is assembled with the partial rotation hole 113 of the bottom case 100 to form a complete rotation hole.

Referring to fig. 14, the slide lock 400 includes a cross beam 410 and a slide rod 420, the slide rod 420 is symmetrically disposed on two sides of the cross beam 410 and is accommodated in the accommodating space 110, the slide rod 420 includes an unlocking block 421, a spring block 422 and a stop surface 423, the unlocking block 421 pushes up a spring lock 921 locked on the locking surface 111 when sliding forward in the accommodating space 110, so as to unlock the optical module, the spring block 422 is accommodated in the spring slot 112, and the return spring 810 is blocked in the spring slot 112.

Referring to fig. 15 and 16, the pull ring 500 is provided with a hand-held beam 510 and side arms 520, the side arms 520 are symmetrically disposed on two sides of the hand-held beam 510, the hand-held beam 510 is provided with a direction slot 511, the direction slot 511 indicates that the optical fiber port 120 is a light emitting optical fiber port or a light receiving optical fiber port, and different colors are filled in a slot body of the direction slot 511 for indicating different operating wavelengths of the optical module, the side arms 520 are provided with a rotation shaft 521, a sliding surface 522 and a stop surface 523, the rotation shaft 521 is clamped in a complete rotation hole formed by matching a part of the rotation hole 133 with a part of the rotation hole 320 to provide a rotation fulcrum of the pull ring 500, the sliding surface 522 is matched with the stop surface 423 on the slide rod 420, the pull ring 500 rotates under the action of an external force, the sliding surface 522 pushes the stop surface 423 to further push the slide lock 400 to slide forward, the unlocking block 421 pushes the spring lock 921 locked on the locking surface 111 to separate from the locking surface 111, and the optical module is unlocked, when the pull ring 500 rotates to the stop surface 523 and abuts against the stop surface 423, the pull ring 500 stops rotating, so that the pull ring 500 is not damaged due to over rotation, and the pull ring 500 is pulled outwards to drive the optical module to exit from the metal cage 920.

As shown in fig. 9 to 12, the bottom case 100 further has a lower positioning surface 150, a mounting table 160, and a marking protrusion 170 inside the case, a label groove 180 is disposed on the bottom surface outside the case, the upper positioning surface 230 is disposed inside the case of the upper case 200, the mounting table 160 has a threaded hole 161, the lower positioning surface 150 and the upper positioning surface 230 cooperate with a clamping and pressing functional circuit board 610, a screw 810 is inserted into the threaded hole 613 of the functional circuit board 610 and screwed into the threaded hole 161 in the mounting table 160, the functional circuit board 610 is mounted and fixed in the optical module cavity, the marking protrusion 170 is used for marking LOGO and optical module production date of company LOGO, and the label groove 180 is used for pasting label description of the optical module.

As shown in fig. 17, the optical module further includes a protection plug 830, which is inserted into the optical fiber port 120 when the optical module is in a non-operating state to protect the TOSA620 and the ROSA630, the protection plug 830 is provided with a LOGO protrusion 831 and an anti-slip protrusion 832, the LOGO protrusion 831 is used for marking company LOGO, and the anti-slip protrusion 832 increases the friction force between a finger and the protection plug 830 when the protection plug 830 is pulled out, so as to pull out the protection plug 830 smoothly.

Referring to fig. 1 to 21, a locking and unlocking process of the optical module and the metal cage 920 in the host device is described, the optical module is inserted into the metal cage 920, when the stop surface 210 abuts against the stop surface 922, the optical module stops being inserted into the metal cage 920, at this time, the spring plate lock 921 abuts against the locking surface 111, the optical module is locked in the metal cage 920, and the golden finger 612 of the functional circuit board 610 makes good contact with the electric connection spring plate 923 to perform transmission of an electrical signal; when the optical module needs to be withdrawn from the metal cage 920, the pull ring 500 is pulled, the pull ring 500 rotates and pushes the slide lock 400 to slide forward, the unlocking block 421 jacks up the elastic sheet lock 921 to separate from the locking surface 111, the optical module is unlocked, the pull ring 500 is moved outwards to drive the optical module to smoothly withdraw from the metal cage 920, at this moment, the external force applied to the pull ring 500 disappears, the return spring 810 in a compression state releases the elastic force, the spring block 422 is pushed to reset the slide lock 400, and then the pull ring 500 is driven to reset.

With reference to fig. 9 and 18, a process of locking and unlocking the LC optical fiber connector 910 and the optical module is described, the LC optical fiber connector 910 is inserted into the optical fiber port 120, the locking piece 911 abuts against the locking surface 121, the LC optical fiber connector 910 is locked in the optical fiber port 120, and the TOSA620 and the ROSA630 are connected for transmitting and receiving optical signals; when the LC optical fiber connector 910 needs to be pulled out of the optical fiber port 120, the unlocking block 912 is pressed, the unlocking block 912 presses the locking block 911 to be separated from the locking surface 121, the LC optical fiber connector 910 is pulled outwards, and the LC optical fiber connector 910 is smoothly unlocked and withdrawn out of the optical fiber port 120.

As shown in fig. 19, the heat sink 925 is locked to the metal cage 920 by the locking frame 924, so as to dissipate heat generated by the optical module during operation to the outside of the optical module, thereby protecting the optical module from normal operation.

The foregoing is considered as illustrative and exemplary only and is not intended to be limiting, and it is to be understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (3)

1. An XFP optical module comprising: the photoelectric part is formed by welding a flexible circuit band in a TOSA and a ROSA to welding spots in a functional circuit board, the bottom shell and the upper shell are assembled to form a cavity for accommodating and fixing the photoelectric part, the sliding lock is assembled in the cavity formed by assembling the bottom shell, the upper shell and the gland in a sliding way under the pushing of the pull ring and is used for jacking up the elastic sheet lock in the metal cage to unlock the optical module and reset the optical module under the acting force of a reset spring, the photoelectric part, the bottom shell, the upper shell, the gland, the sliding lock and the pull ring are characterized in that,

the photoelectric part is provided with a functional circuit board, a TOSA (transmitter optical subassembly) and a ROSA (receiver optical subassembly), wherein one end of the functional circuit board is provided with a welding spot, the other end of the functional circuit board is provided with a golden finger, screw holes are formed in two sides of the functional circuit board, flexible circuit belts are arranged on the TOSA and the ROSA, the flexible circuit belts of the TOSA and the ROSA are welded to the welding spot on the functional circuit board, so that the functional circuit board, the TOSA and the ROSA are welded into a whole to form the photoelectric part, the optical module is inserted and locked in a metal cage in a host device, the golden finger is inserted and connected to an electric connector in the host device, and the functional circuit board and the host device perform electric signal transmission;

the bottom shell is symmetrically provided with accommodating spaces at two sides of the shell, one end of the shell is symmetrically provided with an optical fiber port, one end of the outer bottom surface of the shell is provided with a positioning pin, a clamping block groove is formed in the shell, the accommodating spaces are provided with a locking surface, a spring groove and a part of rotating holes, the locking surface is in locking fit with a spring sheet in a metal cage to lock the optical module in the metal cage, the spring groove is used for accommodating a reset spring, the optical fiber port is provided with a clamping locking surface, an LC optical fiber connector is inserted into the optical fiber port, the clamping locking surface is abutted against a locking block in the LC optical fiber connector to lock the LC optical fiber connector in the optical fiber port, and the TOSA and the ROSA are abutted to carry out optical signal transmission;

the upper shell is provided with a stop surface at one end of the shell, a clamping and pressing surface at the other end of the shell, and the stop surface abuts against a stop surface in the metal cage to prevent the optical module from being excessively inserted into the metal cage, so that a golden finger in the functional circuit board is in good contact with an electric connection elastic sheet in the metal cage, and the golden finger and the electric connection elastic sheet are protected;

the gland is provided with a positioning hole, a partial rotating hole and a screw hole, the positioning hole is matched and positioned with the positioning pin of the bottom shell, and a screw penetrates through the screw hole of the gland and is screwed in the threaded hole in the bottom shell, so that the partial rotating hole of the gland and the partial rotating hole of the bottom shell are assembled to form a complete rotating hole;

the sliding lock is provided with a cross beam and a sliding rod, the sliding rod is symmetrically arranged on two sides of the cross beam and accommodated in the accommodating space, the sliding rod is provided with an unlocking block, a spring block and a stopping surface, the unlocking block jacks up a spring sheet lock in a metal cage clamped on the locking surface when sliding forwards in the accommodating space so as to unlock the optical module, the spring block is accommodated in the spring groove and seals a return spring in the spring groove;

the pull ring is provided with a handheld beam and side arms, the side arms are symmetrically arranged on two sides of the handheld beam, the handheld beam is provided with direction grooves, the direction grooves are used for marking that the optical fiber ports are light emitting optical fiber ports or light receiving optical fiber ports, different colors are filled in groove bodies of the direction grooves and used for marking different working wavelengths of the optical module, the side arms are provided with rotating shafts, sliding surfaces and stop surfaces, the rotating shafts are clamped in the complete rotating holes and provide rotating fulcrums of the pull ring, the sliding surfaces are matched with the stop surfaces on the sliding rods, when the pull ring rotates, the sliding surfaces push the stop surfaces to further push the sliding lock to slide forwards, the unlocking blocks push elastic sheet locks in metal cages clamped on the stop surfaces to be separated from the stop surfaces, the optical module is unlocked, and when the pull ring rotates to the stop surfaces to be abutted against the stop surfaces, the pull ring stops rotating, the pull ring cannot be damaged due to excessive rotation, the pull ring is pulled outwards, and the optical module exits from the metal cage.

2. The XFP optical module of claim 1, wherein the bottom shell further comprises a lower positioning surface, a mounting table and a marking protrusion inside the shell, a label slot is formed in the bottom surface outside the shell, the upper shell comprises an upper positioning surface inside the shell, the mounting table is provided with a threaded hole, the lower positioning surface and the upper positioning surface are matched to clamp and press the functional circuit board, a screw hole penetrating the functional circuit board is screwed into a threaded hole in the mounting table to mount and fix the functional circuit board in the optical module cavity, the marking protrusion is used for marking the LOGO and optical module production date of a company, and the label slot is used for pasting a label description of the optical module.

3. The XFP optical module of claim 1, wherein the optical module is further provided with an upper fixture block, a lower fixture block and a protection plug, the fixture pressing surface is matched with the fixture block groove to package a complete fixture block formed by the upper fixture block and the lower fixture block in the optical module cavity for clamping and fixing the TOSA and the ROSA, the protection plug is inserted into the optical fiber port in the non-working state of the optical module to protect the TOSA and the ROSA, the protection plug is provided with a LOGO protrusion and an anti-slip protrusion, the LOGO protrusion is used for marking a LOGO of a company, and the anti-slip protrusion increases friction force between fingers and the protection plug when the protection plug is pulled out, so that the protection plug is pulled out smoothly.

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