CN204651671U - The high-power optical amplifier structure of erbium ytterbium - Google Patents
The high-power optical amplifier structure of erbium ytterbium Download PDFInfo
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- CN204651671U CN204651671U CN201520333981.1U CN201520333981U CN204651671U CN 204651671 U CN204651671 U CN 204651671U CN 201520333981 U CN201520333981 U CN 201520333981U CN 204651671 U CN204651671 U CN 204651671U
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Abstract
The utility model provides a kind of erbium ytterbium high-power optical amplifier structure, comprises casing and upper cover, is equipped with panel assembly in the front end of casing; The both sides of casing are provided with radiating groove; In casing, a forequarter is fixed with the fine plate of dish, and be provided with fiber amplifier at the rear of the fine plate of casing inner disc, optical branching device is fixed on above fiber amplifier; Fan component is arranged on box back; In casing, opposite side front portion is fixed with master control circuit plate; Master control circuit plate is equipped with a fiber management tray; In casing, the rear of master control circuit plate is provided with power supply module and webmaster wiring board; Webmaster wiring board is electrically connected with master control circuit plate; Power supply module is connected with master control circuit plate; Webmaster wiring board is by panel control line joint face board component; Power line and signal control line is connected with between fiber amplifier and master control circuit plate.In the utility model cabinet, each parts installation position is reasonable, has taken into account the needs of great heat radiation effect and high density laying, has made cabinet inside entirety compacter.
Description
Technical field
The utility model relates to a kind of optical transmission device, the structure of the high-power image intensifer of especially a kind of erbium ytterbium.
Background technology
Television signal transmission mode comprises ground launch, microwave transmission, satellite transmission and Optical Fiber Transmission.Wherein, optical fiber, because its loss is low, it is roomy to be with, becomes the perfect medium of television signal transmission.In addition, the application of 1550nm light modulation techniques and the maturation of Fibre Optical Communication Technology, make 1550nm Optical Fiber Transmission become the main way of current television signal transmission.In 1550nm Optical fiber TV transmission system, erbium-doped fiber amplifier (EDFA), because which compensates for the decay in fibre circuit, drastically increases systematic function undoubtedly, reduces system cost, is the flourish key factor of optical fiber television.
Along with the propelling of FTTH, optical fiber node quantity gets more and more, and the shunt loss of light signal is also increasing, and therefore the power budget of system constantly increases, and also improves constantly the demanded power output of EDFA.But the mode pump mechanism due to EDFA limits the optical power levels injecting pumping, and the cost that traditional EDFA is difficult to realize high-power output or unit power is very expensive.It is reported, the maximum saturation power output of current commercial EDFA is about 500mW, and this is obviously difficult to the application requirement meeting Optical Fiber CATV System.In order to obtain high-power output, erbium ytterbium co doped double clad fiber amplifier (EYDFA) more and more receives publicity.EYDFA have employed multimode pump laser and erbium ytterbium co doped double clad fiber (EYDF), breaches the Power Limitation of traditional E DFA.Erbium-doped fiber amplifier (EDFA) has that noise is low, gain is high, it is roomy to be with, pumping efficiency is high and the advantage such as stable work in work, is widely used in adapt to current FTTH in CATV system, the demand of FTTB network.
Along with informationalized fast development, also increasing to the demand of Informationization Equipment, in limited machine room space/or mounting space, need the number of devices placed also to get more and more.It is reasonable whether the structure of equipment designs, and for Equipments Setting in frame, saves the aspects such as energy cost, maintenance cost, Environmental costs all significant.
Summary of the invention
The purpose of this utility model is to provide a kind of erbium ytterbium high-power optical amplifier structure, and equipment dense degree is high, realizes multiple output function, the high-power output in maximum support 32 tunnel; In cabinet, each parts installation position is reasonable, has taken into account the needs of great heat radiation effect and high density laying, has made cabinet inside entirety compacter; Each optical fiber wire harness connects rationally not in disorder; And improve fiber amplifier internal structure.The technical solution adopted in the utility model is:
The high-power optical amplifier structure of a kind of erbium ytterbium, comprises casing and upper cover, is equipped with panel assembly in the front end of casing; The both sides of casing are provided with radiating groove; In casing, a forequarter is fixed with the fine plate of dish, and be provided with fiber amplifier at the rear of the fine plate of casing inner disc, optical branching device is fixed on above fiber amplifier; Fan component is arranged on box back; In casing, opposite side front portion is fixed with master control circuit plate; Master control circuit plate is equipped with a fiber management tray; In casing, the rear of master control circuit plate is provided with power supply module and webmaster wiring board; Webmaster wiring board is electrically connected with master control circuit plate; Power supply module is connected with master control circuit plate; Webmaster wiring board is by panel control line joint face board component; Power line and signal control line is connected with between fiber amplifier and master control circuit plate.
Cabinet inside input optical fibre, input pre-amplification detection fiber, pump signal output optical fibre, cabinet inside output optical fibre and power signal detection fiber is also laid with in cabinet.
Particularly, described panel assembly comprises machine box surface sheet frame, cabinet panel, display screen, panel wiring board and panel pad pasting;
Side on cabinet panel is provided with multiple flange hole, and at least one input optical fibre flange and multiple output optical fibre flange are assemblied in described flange hole; Cabinet panel being also provided with pilot hole, detecting mouth for installing switch and radio frequency, radio frequency detects mouth and to be arranged on cabinet panel and the master control circuit plate connected in cabinet; Cabinet panel is also provided with display shield aperture and key hole; Be bolted to after first display screen passes through on panel wiring board also with fastened by screw; Panel wiring board is provided with touch key; Panel wiring board together with display screen by be front bolted on cabinet panel and with fastened by screw, and make display screen and touch key respectively with the display shield aperture on cabinet panel and key hole contraposition; Groove is pasted in the face that display shield aperture and key hole are arranged in cabinet panel, and panel pad pasting is covered in face and pastes in groove.
More preferably, the external downward-sloping setting of described flange hole.
Particularly, the structure of fiber amplifier comprises pump box housing, pump box upper cover, pumping wiring board, pre-amplification laser and power pump laser;
The bottom inside of pump box housing is provided with one point of muscle, pump box enclosure interior is divided into the fine region of input end plate and exports the fine region of end plate; Pumping wiring board is arranged in the fine region of input end plate, and pre-amplification laser and power pump laser are fixed in the fine region of input end plate equally, and connect pumping wiring board; Pump box housing is provided with pump box input port and pump box delivery outlet; Input end plate fine region inner disc has input end fiber, and exporting end plate fine region inner disc has the Er-doped fiber that can play amplification;
Input optical fibre flange on one end joint face board component of cabinet inside input optical fibre, the other end melts fine connection by pump box input port with the input end fiber inputting the fine region of end plate in pump box housing; After light signal pre-amplification, picked out from pump box delivery outlet by input pre-amplification detection fiber, connect fiber management tray; Light signal continues to amplify by the Er-doped fiber exported in the fine region of end plate after pre-amplification and power amplification, then is picked out from pump box delivery outlet by pump signal output optical fibre, connects the input of optical branching device.
More preferably, radiating ribs is provided with outside pump box housing bottom.
More preferably, Er-doped fiber, by breaking silicone grease, pastes tin platinum paper and is fastened on pump box housing, realizes the fixing of erbium-doped fiber and heat radiation.
Particularly, optical branching device is provided with optical branching device input, and power signal detects output and multiple power signal output; Cabinet inside output optical fibre one end connects the power signal output of optical branching device, the output optical fibre flange on other end joint face board component;
Master control circuit plate is provided with input testing pump and output detections pump; The power signal of optical branching device detects output by the output detections pump on power signal detection fiber connection master control circuit plate; Connect an intelligent acess fiber management tray from input testing pump input, in fiber management tray, melt fine connection with the input pre-amplification detection fiber picked out from pump box delivery outlet.
Further, four orientation of coiling the upper surface of fine plate are provided with four to fixing ear; Often pair of fixing ear is two, and can pass for VELCRO, and cabinet inside output optical fibre to be coiled on fixing ear and to fix with VELCRO.
The utility model has the advantage of:
1) cabinet inside closeness is high, makes cabinet height be only 1U, space hold is significantly less than 2U, the large scale cabinets such as 3U, 4U, is dominant from cost and space utilization rate.
2) pump box reasonable in internal structure, achieves convenient for assembly and great heat radiation effect; Pump box inner fiber wire harness singulizing disc is put, and is conducive to heat radiation and safeguards.
3) coil fine plate cabinet inner fiber wire harness to be classified, the independent wire harness of part is positioned over below the fine plate of dish, coils fine plate and plays and block wire harness effect.Coil and fine plate is equipped with magic glues, the optical fiber cable for different wire diameter can play and well lash effect, safeguards convenient disassembly, does not need use instrument, can not damage cable.
4) panel assembly is rational in infrastructure compact, realizes maximum 32 tunnels and exports.
5) external slant optical fiber, reduces degree of crook thus improves or do not affect transmission performance, reduces or reduce the probability pushing down optical fiber cable when cabinet door is closed.
Accompanying drawing explanation
Fig. 1 is structure vertical view of the present utility model.
Fig. 2 is structural blast figure of the present utility model.
Fig. 3 is structural perspective of the present utility model.
Fig. 4 a is panel assembly explosive view of the present utility model.
Fig. 4 b is the flange hole schematic diagram of external downward-sloping setting in panel assembly of the present utility model.
Fig. 5 is fiber amplifier structural blast figure of the present utility model.
Fig. 6 is the vertical view of fiber amplifier of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
The high-power image intensifer of erbium ytterbium that the utility model proposes, its structure as shown in Figure 1, Figure 2, Figure 3 shows, comprises casing 1 and upper cover 2; Upper cover 2 covers the cabinet of the image intensifer that can have been formed on casing 1.Cabinet height is 1U(that is 1.75 inches).
Panel assembly 3 is equipped with in the front end of casing 1; The both sides of casing 1 are provided with radiating groove 4, and the air for cabinet outside enters.
In casing 1, a forequarter is fixed with the fine plate 5 of dish, and be provided with fiber amplifier 6 at the rear of the fine plate 5 of casing 1 inner disc, optical branching device 7 is fixed on above fiber amplifier 6; Fan component 77 is arranged on casing 1 rear end;
In casing 1, opposite side front portion is fixed with master control circuit plate 8; Master control circuit plate 8 is equipped with a fiber management tray 9; In casing 1, the rear of master control circuit plate 8 is provided with power supply module 99 and webmaster wiring board 10; Webmaster wiring board 10 realizes being electrically connected by contact pin socket with master control circuit plate 8; Power supply module 99 is connected with master control circuit plate 8; Webmaster wiring board 10 is by panel control line 11 joint face board component 3.Power line and signal control line (not shown in FIG.) is connected with between fiber amplifier 6 and master control circuit plate 8.
During the work of this image intensifer, cold air from casing both sides suction casing, to the flowing of cabinet rear direction, fully can be taken away the heat of master control circuit plate 8, fiber amplifier 6 and power supply module 99 etc. by fan component 77.
Cabinet inside input optical fibre 12, input pre-amplification detection fiber 13, pump signal output optical fibre 14, cabinet inside output optical fibre 15 and power signal detection fiber 16 is also laid with in cabinet.
The structure of panel assembly 3, as shown in Fig. 2 and Fig. 4 a, comprises machine box surface sheet frame 300, cabinet panel 301, display screen 302, panel wiring board 303 and panel pad pasting 304; Whole panel assembly 3 can be arranged on cabinet front end by machine box surface sheet frame 300.
Side on cabinet panel 301 is provided with multiple flange hole 3011, and at least one input optical fibre flange 3012 and multiple output optical fibre flange 3013 are assemblied in described flange hole 3011.16 square output optical fibre flanges 3013 of single port can be assembled in this example, as the 16 high-power output optical fibre interfaces in tunnel, in other embodiments, 16 square output optical fibre flanges of twoport can be assembled, then 32 road large-power optical fibers can be provided to export.Preferably, as as described in Fig. 4 b, the external downward-sloping setting of flange hole 3011, external optical fiber splice can be made like this to be in downward-sloping state, external slant optical fiber can increase the cable bend angle formed when cable is affected by gravity sagging, improves bending radius thus improves or do not affect transmission performance.In addition when cabinet is positioned in 19 inch platform frames, some 19 inch platform Shelf External has glass door to close, inclined design can reduce the distance of cable from glass door, reasonably optimizing and make use of installing space, reduces or reduces the probability pushing down optical fiber cable when glass door is closed.When equipment normally works, when changing or access new square optical fiber splice, panel certainly will be caused to change the optical fiber flange inner light beam injection of position, and this light beam easily causes human eye to injure.After adding inclined design, what reduce optical fiber flange and eyes looks squarely probability, reduces the injury probability that light beam causes human eye.
Cabinet panel 301 being also provided with pilot hole 3014, detecting mouth 3016 for installing switch 3015 and radio frequency, radio frequency detects mouth 3016 and to be arranged on cabinet panel and the master control circuit plate 8 connected in cabinet; Cabinet panel 301 is also provided with display shield aperture 3017 and key hole 3018; First display screen 302 is fixed on panel wiring board 303 also fastening with screw 306 by rear bolt 305; Panel wiring board 303 is provided with touch key 3031; Panel wiring board 303 to be fixed on cabinet panel 301 by front bolt 307 together with display screen 302 and with fastened by screw, and make display screen 302 and touch key 3031 respectively with the display shield aperture 3017 on cabinet panel and key hole 3018 contraposition; Groove 3019 is pasted in the face that display shield aperture 3017 and key hole 3018 are arranged in cabinet panel, and panel pad pasting 304 is covered in face and pastes in groove 3019.
The structure of fiber amplifier 6 as shown in Figure 5 and Figure 6, comprises pump box housing 601, pump box upper cover 602, pumping wiring board 603, pre-amplification laser 604 and power pump laser 605; Wherein pre-amplification laser 604 adopts butterfly laser, plays the large effect of prevention to light signal, and power pump laser 605 can carry out power amplification further to the light signal after prevention greatly.Pump box housing 601 bottom outside is provided with radiating ribs 607.
The bottom inside of pump box housing 601 is provided with one point of muscle 606, pump box enclosure interior is divided into the fine region 608 of input end plate and exports the fine region 609 of end plate; Pumping wiring board 603 is arranged in the fine region 608 of input end plate, pre-amplification laser 604 and power pump laser 605 are fixed in the fine region 608 of input end plate equally, and their pin is soldered on pumping wiring board 603, thus connect pumping wiring board 603; Pump box housing 601 is provided with pump box input port 610 and pump box delivery outlet 611; Input end plate fine region 608 inner disc has input end fiber 612, and exporting end plate fine region 609 inner disc has the Er-doped fiber 613 that can play amplification;
Input optical fibre flange 3012 on one end joint face board component 3 of cabinet inside input optical fibre 12, the other end melts fine connection by pump box input port 610 with the input end fiber 612 inputting the fine region 608 of end plate in pump box housing; After light signal pre-amplification, picked out from pump box delivery outlet 611 by input pre-amplification detection fiber 13, connect fiber management tray 9; Light signal continues to amplify by the Er-doped fiber 613 exported in the fine region 609 of end plate after pre-amplification and power amplification, then is picked out from pump box delivery outlet 611 by pump signal output optical fibre 14, connects the input 701 of optical branching device 7;
Above-mentioned Er-doped fiber 613 is by breaking silicone grease, and the method for pasting tin platinum paper is fastened on pump box housing 601, realizes the fixing of erbium-doped fiber and heat radiation.Pump box housing 601 adopts aluminum alloy materials die casting, and cost is low, and conductive coefficient is more excellent, and heat-conductive characteristic is good.The radiating ribs design of pump box housing bottom simultaneously also increases the area of heat radiation, by fan exhausting effect below, the air in radiating ribs is flowed, reduces the temperature of pump box.
In pump box housing 601, input end fiber and output optical fiber are separated by a point muscle 606, achieve optical fiber classification dish to put, facilitate the process of Maintenance and Repair, simultaneously the technique for fixing of the 609 pairs of Er-doped fibers 613 in the fine region of large-area output end plate and radiating effect play critical effect.
Optical branching device 7 is provided with optical branching device input 701, and power signal detects output 702 and multiple power signal output 703; Cabinet inside output optical fibre 15 one end connects the power signal output 703 of optical branching device 7, the output optical fibre flange 3013 on other end joint face board component 3, thus high power light signal can be exported;
The structure of coiling fine plate 5 as shown in Figure 1, is provided with four to fixing ear 501 in four orientation of the upper surface of the fine plate 5 of dish; Often pair of fixing ear 501 is two, and can be used for VELCRO (not shown in FIG.) to pass; The cabinet inside output optical fibre 15 picked out from optical branching device 7 after each fixing ear 501 twisting number circles, then is connected to the output optical fibre flange 3013 on panel assembly 3.Magic is sticky can be fixed on optical fiber on fixing ear 501.
Master control circuit plate 8 is provided with input testing pump 801 and output detections pump 802; The power signal detection output 702 of optical branching device 7 connects the output detections pump 802 on master control circuit plate by power signal detection fiber 16; Connect an intelligent acess fiber management tray 9 from input testing pump 801 input, in fiber management tray, melt fine connection with the input pre-amplification detection fiber 13 picked out from pump box delivery outlet 611, realize the detection of prevention large-signal.
Cabinet inside input optical fibre 12, input pre-amplification detection fiber 13, pump signal output optical fibre 14 and power signal detection fiber 16 can from cablings under the fine plate 5 of dish; Coil fine plate to play and separate and block wire harness effect, make cabinet inner fiber can not be too in disorder.
Power supply module 99 can adopt the double switch power of hot plug.Support Hot Spare, fully can ensure that this light sends out device reliable and stable work large.
Comprise two fans in fan component 77, heat-sinking capability is comparatively strong, even if a fan breaks down, remains a fan and also can ensure that cabinet inside can not be overheated.
Claims (8)
1. the high-power optical amplifier structure of erbium ytterbium, comprises casing (1) and upper cover (2), it is characterized in that:
Panel assembly (3) is equipped with in the front end of casing (1); The both sides of casing (1) are provided with radiating groove (4);
In casing (1), a forequarter is fixed with the fine plate of dish (5), be provided with fiber amplifier (6) at the rear of the fine plate (5) of casing (1) inner disc, optical branching device (7) is fixed on fiber amplifier (6) top; Fan component (77) is arranged on casing (1) rear end;
In casing (1), opposite side front portion is fixed with master control circuit plate (8); Master control circuit plate (8) is equipped with a fiber management tray (9); In casing (1), the rear of master control circuit plate (8) is provided with power supply module (99) and webmaster wiring board (10); Webmaster wiring board (10) is electrically connected with master control circuit plate (8); Power supply module (99) is connected with master control circuit plate (8); Webmaster wiring board (10) is by panel control line (11) joint face board component (3); Power line and signal control line is connected with between fiber amplifier (6) and master control circuit plate (8).
2. the high-power optical amplifier structure of erbium ytterbium as claimed in claim 1, is characterized in that:
Described panel assembly (3) comprises machine box surface sheet frame (300), cabinet panel (301), display screen (302), panel wiring board (303) and panel pad pasting (304);
Side on cabinet panel (301) is provided with multiple flange hole (3011), and at least one input optical fibre flange (3012) and multiple output optical fibre flange (3013) are assemblied in described flange hole (3011);
Cabinet panel (301) is also provided with pilot hole (3014), detect mouth (3016) for installing switch (3015) and radio frequency, radio frequency detects mouth (3016) and to be arranged on cabinet panel and the master control circuit plate (8) connected in cabinet;
Cabinet panel (301) is also provided with display shield aperture (3017) and key hole (3018); Display screen (302) is first fixed on panel wiring board (303) by rear bolt (305) and goes up and use fastened by screw; Panel wiring board (303) is provided with touch key (3031); Panel wiring board (303) is fixed on cabinet panel (301) together with display screen (302) by front bolt (307) and goes up and use fastened by screw, and make display screen (302) and touch key (3031) respectively with the display shield aperture (3017) on cabinet panel and key hole (3018) contraposition; Groove (3019) is pasted in the face that display shield aperture (3017) and key hole (3018) are arranged in cabinet panel, and panel pad pasting (304) is covered in face and pastes in groove (3019).
3. the high-power optical amplifier structure of erbium ytterbium as claimed in claim 2, is characterized in that:
The external downward-sloping setting of described flange hole (3011).
4. the high-power optical amplifier structure of erbium ytterbium as described in claim 1,2 or 3, is characterized in that:
The structure of fiber amplifier (6) comprises pump box housing (601), pump box upper cover (602), pumping wiring board (603), pre-amplification laser (604) and power pump laser (605);
The bottom inside of pump box housing (601) is provided with one point of muscle (606), pump box enclosure interior is divided into the fine region (608) of input end plate and exports the fine region (609) of end plate; Pumping wiring board (603) is arranged in the fine region (608) of input end plate, pre-amplification laser (604) and power pump laser (605) are fixed in the fine region (608) of input end plate equally, and connect pumping wiring board (603); Pump box housing (601) is provided with pump box input port (610) and pump box delivery outlet (611); Fine region (608) inner disc of input end plate has input end fiber (612), and exporting fine region (609) inner disc of end plate has the Er-doped fiber (613) that can play amplification;
Input optical fibre flange (3012) on one end joint face board component (3) of cabinet inside input optical fibre (12), the other end melts fine connection by pump box input port (610) with the input end fiber (612) inputting the fine region (608) of end plate in pump box housing; After light signal pre-amplification, picked out from pump box delivery outlet (611) by input pre-amplification detection fiber (13), connect fiber management tray (9); Light signal continues to amplify by the Er-doped fiber (613) exported in the fine region (609) of end plate after pre-amplification and power amplification, picked out from pump box delivery outlet (611) by pump signal output optical fibre (14) again, connect the input (701) of optical branching device (7).
5. the high-power optical amplifier structure of erbium ytterbium as claimed in claim 4, is characterized in that:
Pump box housing (601) bottom outside is provided with radiating ribs (607).
6. the high-power optical amplifier structure of erbium ytterbium as claimed in claim 4, is characterized in that:
Er-doped fiber (613), by breaking silicone grease, pastes tin platinum paper and is fastened on pump box housing (601), realizes the fixing of erbium-doped fiber and heat radiation.
7. the high-power optical amplifier structure of erbium ytterbium as claimed in claim 4, is characterized in that:
Optical branching device (7) is provided with optical branching device input (701), and power signal detects output (702) and multiple power signal output (703); Cabinet inside output optical fibre (15) one end connects the power signal output 703 of optical branching device (7), the output optical fibre flange (3013) on other end joint face board component (3);
Master control circuit plate (8) is provided with input testing pump (801) and output detections pump (802); The power signal of optical branching device (7) detects output (702) by the output detections pump (802) on power signal detection fiber (16) connection master control circuit plate; Connect an intelligent acess fiber management tray (9) from input testing pump (801) input, in fiber management tray (9), melt fine connection with the input pre-amplification detection fiber (13) picked out from pump box delivery outlet (611).
8. the high-power optical amplifier structure of erbium ytterbium as claimed in claim 7, is characterized in that:
Four orientation of coiling the upper surface of fine plate (5) are provided with four to fixing ear (501); Often pair of fixing ear (501) is two, and can pass for VELCRO, and cabinet inside output optical fibre (15) is coiled in fixing ear (501) and goes up and fix with VELCRO.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520333981.1U CN204651671U (en) | 2015-05-21 | 2015-05-21 | The high-power optical amplifier structure of erbium ytterbium |
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| CN201520333981.1U CN204651671U (en) | 2015-05-21 | 2015-05-21 | The high-power optical amplifier structure of erbium ytterbium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129933A (en) * | 2018-10-31 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | All-fiber air-cooled thulium laser |
| CN113824503A (en) * | 2021-11-24 | 2021-12-21 | 华海通信技术有限公司 | Internal unit of relay amplifier and tensioning method |
-
2015
- 2015-05-21 CN CN201520333981.1U patent/CN204651671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129933A (en) * | 2018-10-31 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | All-fiber air-cooled thulium laser |
| CN113824503A (en) * | 2021-11-24 | 2021-12-21 | 华海通信技术有限公司 | Internal unit of relay amplifier and tensioning method |
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