CN202794620U - Four-path receiving-transmitting optical device - Google Patents
Four-path receiving-transmitting optical device Download PDFInfo
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- CN202794620U CN202794620U CN 201220332825 CN201220332825U CN202794620U CN 202794620 U CN202794620 U CN 202794620U CN 201220332825 CN201220332825 CN 201220332825 CN 201220332825 U CN201220332825 U CN 201220332825U CN 202794620 U CN202794620 U CN 202794620U
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Abstract
The utility model discloses a four-path receiving-transmitting optical device. The four-path receiving-transmitting optical device comprises a first laser diode module TP-CAN1, a second laser diode module TP-CAN2, a third laser diode module TP-CAN3, a fourth laser diode module TP-CAN4, a first optical filter F1, a second optical filter F2, a third optical filter F3, a fourth optical filter F4 and a fifth optical filter F5. According to the technical scheme of the utility model, the four laser diode modules and the five groups of optical filters are arranged according to a specific arranging sequence. Meanwhile, the five groups of optical filters are coated with different antireflection films or reflective films to form four paths of optical signal transmission channels so as to realize simultaneous transmission of the four paths of optical signals. Due to the adoption of the four-path receiving-transmitting optical device, an optical fiber network system can transmit four paths of the optical signals in one optical line. Meanwhile, the other two paths of optical signals also have other applications when a single-fiber bidirectional optical fiber line communicates normally.
Description
Technical field
The utility model relates to Fibre Optical Communication Technology, relates in particular to a kind of optical device that can realize the multipath light signal transmission.
Background technology
Optical device is to convert the electrical signal to light signal in the optical communication system or convert light signal the Primary Component of electric signal to, so optical device directly determines the transmission of a fiber middle light signal way.When needing four tunnel optical signal transmission in the fibre circuit or increasing two ways of optical signals during at single fiber bi-directional optical fiber circuit normal communication to be used for other purposes, the optical device in the existing single fiber bi-directional circuit just can't satisfy the requirement that four road light signals transmit simultaneously in the optical fiber.
Therefore be necessary to provide a kind of optical device that can realize four tunnel optical signal transmission.
The utility model content
Embodiment of the present utility model provides a kind of optical device, in order to realize four tunnel transmission of light signal in the optical module of optical line terminal.
In order to reach the purpose of this utility model, according to an aspect of the present utility model, a kind of four tunnel transmitting-receiving optical devices are provided, comprise: first to fourth laser diode module TO-CAN1, TO-CAN2, TO-CAN3, TO-CAN4 and the first to the 5th optical filter F1, F2, F3, F4 and F5, first, second generating laser and first, second laser detector, wherein:
Be packaged with the light source transmitting chip of the first optical lens and the first generating laser in the first laser diode module, after described first optical lens of optical signals of the first wavelength of described light source transmitting chip output penetrates, through the transmission of the first optical filter, the second optical filter and the 3rd optical filter, coupled into optical fibres;
Be packaged with the optical signal detection chip of the second optical lens and the first laser detector in the second laser diode module, input behind the second optical lens of the second laser diode module through the reflection of the 3rd optical filter and the transmission of the 5th optical filter from the light signal of the second wave length of described optical fiber input, enter into the optical signal detection chip of the first laser detector;
The 3rd laser diode module packaging has the light source transmitting chip of the 3rd optical lens and the second generating laser, the light signal of the three-wavelength that the light source transmitting chip of the second generating laser sends is after the 3rd optical lens of the 3rd laser diode module penetrates, through the reflection of the second optical filter and the transmission of the 3rd optical filter, be coupled into described optical fiber;
Encapsulated the optical signal detection chip of the 4th optical lens and the second laser detector in the 4th laser diode module, by the transmission through the 3rd optical filter, the second optical filter of the light signal of the 4th wavelength of described optical fiber input, with the reflection of the first optical filter, the transmission of the 4th optical filter enters into the optical signal detection chip of the second laser detector by the 4th optical lens of the 4th laser diode module.
Wherein, the first laser diode module is positioned at the high order end of optical device, and is relative with the interface of described optical fiber; The second laser diode module is positioned at the right-hand member of optical device top, and is perpendicular with the line of the first laser diode module and optical fiber interface; The 3rd laser diode module is positioned at the below of optical device, and is perpendicular with the line of the first laser diode module and optical fiber interface; The 4th laser diode module is positioned at the left end of optical device top, and is perpendicular with the line of the first laser diode module and optical fiber interface.
Wherein, the first optical filter, the second optical filter and the 3rd optical filter are arranged between the first laser diode module and the optical fiber interface: the first optical filter is arranged at the intersection point place of the line of the extended line of the 4th laser diode module and the first laser diode module and optical fiber interface, and the first optical lens angle at 45 ° of the first optical filter and the first laser diode module is with the optical lens of the 4th laser diode module angle at 45 °; The second optical filter is arranged at the intersection point place of the line of the extended line of the 3rd laser diode module and the first laser diode module and optical fiber interface, and the optical lens angle at 45 ° of the second optical filter and the 3rd laser diode module; The 3rd optical filter is arranged at the intersection point place of the line of the extended line of the second laser diode module and the first laser diode module and optical fiber interface, and the optical lens angle at 45 ° of the 3rd optical filter and the second laser diode module; The 4th optical filter is arranged between the first optical filter and the 4th laser diode module, and on the extended line that is centered close to the 4th laser diode module of the 4th optical filter, and the 4th optical filter parallels with the optical lens of the 4th laser diode module; The 5th optical filter is arranged between the 3rd optical filter and the second laser diode module, and on the extended line that is centered close to the second laser diode module of the 5th optical filter, and the 5th optical filter parallels with the optical lens of the second laser diode module.
Wherein, the first laser diode module is coaxial type laser diode module or is the encapsulation of box type; The second laser diode module, the 3rd laser diode module and the 4th laser diode module are coaxial type laser diode module.
Wherein, the first optical filter plates the anti-film that increases of the anti-reflection film of the first wavelength and the 4th wavelength; The second optical filter plates the anti-reflection film of the 4th wavelength light signal that increases anti-film and transmission 90% of anti-reflection film, reflection 10% the three-wavelength light signal of the first wavelength; The 3rd optical filter plates the anti-reflection film of the first wavelength, the anti-reflection film that increases anti-film, three-wavelength of second wave length and the anti-reflection film of the 4th wavelength; The 4th optical filter plates the anti-reflection film of the 4th wavelength; The anti-reflection film of the 5th optical filter plating second wave length.
Wherein, the first generating laser comprises the DFB transmitting illuminant of the 1.25Gbps that launches the first wavelength, perhaps comprises the DFB transmitting illuminant of the 2.488Gbps that launches the first wavelength, perhaps comprises the EML transmitting illuminant of the 9.953Gbps that launches the first wavelength.
Wherein, the first laser detector comprises the APD pick-up probe of the 1.25Gbps that receives second wave length, perhaps comprises the APD pick-up probe of the 1.2488Gbps that receives second wave length, perhaps comprises the APD pick-up probe of the 2.488Gbps that receives second wave length;
The second Laser emission implement body comprises: the OTDR DFB burst transmissions light source of three-wavelength;
The second laser acquisition implement body comprises: the OTDRAPD detector of the 4th wavelength.
Further, the first wavelength is 1490nm, and second wave length is 1310nm, and three-wavelength is identical with the 4th wavelength, is 1625nm.
Perhaps, the first wavelength is 1577nm, and second wave length is 1270nm, and three-wavelength is identical with the 4th wavelength, is 1625nm.
According to another aspect of the present utility model, four road optical signal transmission methods in a kind of optical device are provided, comprising:
The light source transmitting chip that is packaged in the first generating laser of the first laser diode module sends first via light signal, after the first wavelength optical signals the first optical lens penetrates, enter the optical fiber interface through the transmission of the first optical filter, the second optical filter and the 3rd optical filter is laggard;
After the transmission of the reflection of the 3rd optical filter and the 5th optical filter, enter the second optical lens of the second laser diode module by the second wave length light signal of optical fiber input, after the second optical lens of the second laser diode module penetrates, enter the optical signal detection chip of the first laser detector;
The light source transmitting chip that is packaged in the second generating laser of the 3rd laser diode module sends the light signal of three-wavelength, after three-wavelength optical signals the 3rd optical lens penetrates, enter the optical fiber interface through the transmission of the reflection of described the second optical filter and the 3rd optical filter is laggard;
By the transmission through described the 3rd optical filter, the second optical filter of the light signal of the 4th wavelength of optical fiber input, reflection with described the first optical filter, enter the optical signal detection chip of the second laser detector after the 4th optical lens ejaculation of the transmission of the 4th optical filter by the 4th laser diode module, thereby realize four tunnel optical signal transmission.
Wherein, be coated with the anti-film that increases of the anti-reflection film of the first wavelength and the 4th wavelength on the first optical filter;
Be coated with the anti-reflection film of the first wavelength on the second optical filter, the anti-reflection film of the 4th wavelength light signal that increases anti-film and transmission 90% of the three-wavelength light signal of reflection 10%;
Be coated with the anti-reflection film of the first wavelength on the 3rd optical filter, the anti-reflection film that increases anti-film, three-wavelength of second wave length and the anti-reflection film of the 4th wavelength;
Be coated with the anti-reflection film of the 4th wavelength on the 4th optical filter;
Be coated with the anti-reflection film of second wave length on the 5th optical filter.
The utility model embodiment arranges first to fourth laser diode module and the first to the 5th optical filter in optical device.After the first optical lens that the light source transmitting chip of the first generating laser sends the optical signals first laser diode module of the first wavelength penetrates, enter the optical fiber interface through the transmission of the first optical filter, the second optical filter and the 3rd optical filter is laggard; After the transmission of the reflection of the 3rd optical filter and the 5th optical filter, after penetrating, the second optical lens of the second laser diode module enters the optical signal detection chip of the first laser detector by the light signal of the second wave length of optical fiber input; After the 3rd optical lens that the light source transmitting chip of the second generating laser sends optical signals the 3rd laser diode module of three-wavelength penetrates, enter the optical fiber interface through 10% light of described the second optical filter reflection by the transmission of the 3rd optical filter is laggard; By the light signal of the 4th wavelength of optical fiber input behind the light of the 3rd optical filter transmission 90% again through the transmission of the second optical filter and the reflection of the first optical filter, enter the optical signal detection chip of the second laser detector after the transmission of the 4th optical filter is penetrated by the 4th optical lens of the 4th laser diode module.Thereby realize four tunnel optical signal transmission.If the second generating laser and the second laser detector are used for communications, four tunnel transmitting-receiving optical devices then make the bandwidth of Internet Transmission increase.If the detection chip of the second laser detector links to each other with the breaking point detection module, can carry out the breakpoints of optical fiber detection just then needn't disconnect optical fiber network system, guarantee the normal transmission of the signal of the network that other does not have the breakpoint place.Therefore the utility model both can realize that the increase of bandwidth in the Internet Transmission also can realize carrying out the real-time breaking point detection in the optical fiber communication.
Description of drawings
Fig. 1 is the inner structure circuit block diagram of four tunnel transmitting-receiving optical devices;
Fig. 2 is the structural representation of optical path component among the embodiment 1;
Fig. 3 is the DFB transmitting illuminant of 1.25Gbps of the first wavelength of the utility model embodiment 1 and the circuit diagram of driving circuit thereof;
Fig. 4 is the APD pick-up probe of 1.25Gbps of second wave length of the utility model embodiment 1 and the circuit diagram of amplitude limiting amplifier circuit;
Fig. 5 is the OTDR DFB burst transmissions light source of three-wavelength of the utility model embodiment 1 and the circuit diagram of driving circuit thereof;
Fig. 6 is the OTDR APD detector of the 4th wavelength of the utility model embodiment 1 and the circuit diagram of breaking point detection module.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, referring to accompanying drawing and enumerate preferred embodiment, the utility model is further described.Yet, need to prove that many details of listing in the instructions only are in order to make the reader to one or more aspects of the present utility model a thorough understanding be arranged, even if there are not these specific details also can realize these aspects of the present utility model.
In the technical scheme of the utility model embodiment, by being set, the first laser diode module TO-CAN1, the second laser diode module TO-CAN2, the 3rd laser diode module TO-CAN3, the 4th laser diode module TO-CAN4 and the first optical filter F1, the second optical filter F2, the 3rd optical filter F3, the 4th optical filter F4 and the 5th optical filter F5 realize transmission in 4 road light signals in the optical fiber communication in optical device inside.
Embodiment 1:
Describe the technical scheme of the utility model embodiment in detail below in conjunction with accompanying drawing.It is the inner structure circuit block diagram of four tunnel transmitting-receiving optical devices that Fig. 1 shows.As shown in Figure 1, four tunnel transmitting-receiving optical devices comprise optical path component 1, the first generating laser 11, the first laser detector 12, the second generating laser 21 and the second laser detector.Wherein, optical path component 1 comprises first to fourth laser diode module TO-CAN1, TO-CAN2, TO-CAN3, TO-CAN4 and the first to the 5th optical filter F1, F2, F3, F4 and F5.Optical path component 1 links to each other with optical fiber.
Fig. 2 shows the structural representation of light path devices, as shown in Figure 2, light path devices comprises the first laser diode module TO-CAN1, the second laser diode module TO-CAN2, the 3rd laser diode module TO-CAN3, the 4th laser diode module TO-CAN4 and the first optical filter F1, the second optical filter F2, the 3rd optical filter F3, the 4th optical filter F4 and the 5th optical filter F5.Wherein, TO-CAN1 adopts coaxial type laser diode module or for utilizing box type packing forms.Described TO-CAN2, TO-CAN3, TO-CAN4 are coaxial type laser diode module.
TO-CAN1 is positioned at the high order end of optical device, and is relative with the interface of optical fiber; TO-CAN2 is positioned at the right-hand member of optical device top, and is perpendicular with the line of TO-CAN1 and optical fiber interface; TO-CAN3 is positioned at the below of optical device, and is perpendicular with the line of TO-CAN1 and optical fiber interface.TO-CAN4 is positioned at the left end of optical device top, and is perpendicular with the line of TO-CAN1 and optical fiber interface.
The first optical filter F1 plates the anti-film that increases of the anti-reflection film of the first wavelength and the 4th wavelength, it is arranged between TO-CAN1 and the optical fiber interface, the center of F1 and the first intersection point coincide, and the optical lens of F1 and TO-CAN1 angle at 45 °, with the optical lens of TO-CAN4 angle at 45 °; The first intersection point refers to the intersection point of the line of the extended line of TO-CAN4 and TO-CAN1 and optical fiber interface.
The second optical filter F2 plates the anti-reflection film of the first wavelength, the anti-reflection film of the 4th wavelength light signal that increases anti-film and transmission 90% of the three-wavelength light signal of reflection 10%, it is arranged between TO-CAN1 and the optical fiber interface, the center of F2 and the second intersection point coincide, and the optical lens of F2 and TO-CAN3 angle at 45 °; The second intersection point refers to the intersection point of the line of the extended line of TO-CAN3 and TO-CAN1 and optical fiber interface.
The 3rd optical filter F3 plates the anti-reflection film of the first wavelength, the anti-reflection film that increases anti-film and three-wavelength of second wave length and the anti-reflection film of the 4th wavelength, it is arranged between optical filter F2 and the optical fiber interface, the center of F3 and the 3rd intersection point coincide, and the optical lens of F3 and TO-CAN2 angle at 45 °; The 3rd intersection point refers to the intersection point of the line of the extended line of TO-CAN2 and TO-CAN1 and optical fiber interface.
The 4th optical filter F4 plates the anti-reflection film of the 4th wavelength, and it is arranged between F1 and the TO-CAN4, and on the extended line that is centered close to TO-CAN4 of F4, and F4 parallels with the optical lens of TO-CAN4.
The anti-reflection film of the 5th optical filter F5 plating second wave length, it is arranged between F3 and the TO-CAN2, and on the extended line that is centered close to TO-CAN2 of F5, and F5 parallels with the optical lens of TO-CAN2.
How to plate the anti-reflection film of respective wavelength and to increase anti-film at F1, F2, F3, F4, F5, reflect the light of the 4th wavelength so that F1 can see through the light of the first wavelength; F2 sees through the light of the first wavelength and sees through the light of 90% the 4th wavelength and reflect the light of 10% three-wavelength; F3 sees through the light of the first wavelength, three-wavelength and the 4th wavelength and reflects the light of second wave length; F4 sees through the light of the 4th wavelength; F5 sees through the technology that the light of second wave length is well known to those skilled in the art, and repeats no more herein.
Be packaged with the light source transmitting chip of the first optical lens 3 and the first generating laser 11 among the TO-CAN1, the transmission channel of the first wavelength light signal that the light source transmitting chip of the first generating laser 11 sends among the first optical lens 3 of TO-CAN1, F1, F2 and the F3 formation TO-CAN1;
Be packaged with the optical signal detection chip of the second optical lens 4 and the first laser detector 12 among the TO-CAN2, the second optical lens 4 of TO-CAN2, F3 and F5 consist of the transmission channel of the second wave length light signal of optical fiber input;
Be packaged with the light source transmitting chip of the 3rd optical lens 5 and the second generating laser 21 among the TO-CAN3, the 3rd optical lens 5, F2 and the F3 of TO-CAN3 consists of the transmission channel of the three-wavelength light signal that the light source transmitting chip of the second generating laser 21 sends;
TO-CAN4 is packaged with the optical signal detection chip of the 4th optical lens 6 and the second laser detector 22, and the 4th optical lens 6 of TO-CAN4, F3, F2, F1 and F4 consist of the transmission channel by the four road light signal of optical fiber input.
The first generating laser 11 comprises the DFB(Distribute FeedBack Laser of the 1.25Gbps of the first wavelength, distributed feedback laser instrument in the optical device) transmitting illuminant.The DFB transmitting illuminant is packaged among the TO-CAN1.The driving circuit of the DFB transmitting illuminant of the 1.25Gbps of this first wavelength receives the electric signal that optical fiber communication equipment transmits, drive the light signal that this DFB transmitting illuminant is launched the first wavelength according to the electric signal that receives, the light signal of this first wavelength is the light signal of the descending continuous emission of 1.25Gbps.The circuit diagram of the DFB transmitting illuminant of the 1.25Gbps of the first wavelength as shown in Figure 3.Certainly, the first generating laser 11 also can be for comprising the DFB transmitting illuminant of the 2.488Gbps that launches the first wavelength, also or comprise the EML transmitting illuminant of the 9.953Gbps that launches the first wavelength.Because the circuit that the 1.25Gbps of the first wavelength or the DFB transmitting illuminant circuit of 2.488Gbps or 9.953Gbps are well known to those skilled in the art is introduced no longer in detail herein.
The first laser detector 12 comprises the APD(Avalanche Photo Diode of the 1.25Gbps of second wave length, avalanche photodide) pick-up probe and.The APD pick-up probe is packaged among the TO-CAN2.It is the light signal of second wave length that the APD pick-up probe receives wavelength, and is converted into electric signal, and the electric signal of the APD pick-up probe being changed by amplitude limiting amplifier circuit amplifies laggard line output.The circuit diagram of the APD pick-up probe of the 1.25Gbps of second wave length as shown in Figure 4.Certain the first laser detector can for comprising the APD pick-up probe of the 1.2488Gbps that receives second wave length, perhaps be the APD pick-up probe that comprises the 2.488Gbps that receives second wave length also.Because the circuit that the 1.25Gbps of this second wave length or the APD pick-up probe of 2.488Gbps or 9.953Gbps are well known to those skilled in the art is introduced no longer in detail herein.
The second laser detector 22 comprises the OTDR(Optical Time Domain Reflectometer of three-wavelength, optical time domain reflectometer) DFB burst transmissions light source.The OTDR DFB burst transmissions light-source encapsulation of three-wavelength is in TO-CAN3.It is the light signal of three-wavelength that driving circuit in the OTDR DFB burst transmissions light source drives this OTDR DFB burst transmissions light source emission wavelength.OTDR DFB burst transmissions circuit of light sources synoptic diagram as shown in Figure 5.Because the circuit that the OTDR DFB burst transmissions light source of three-wavelength is well known to those skilled in the art is introduced no longer in detail herein.
The second laser detector 22 comprises the OTDR APD detector of the 4th wavelength.OTDR APD pick-up probe is packaged among the TO-CAN4.After the OTDR APD detector of the 4th wavelength is received the light signal of the 4th wavelength that reflects, through output electrical signals after the opto-electronic conversion.The circuit diagram of the OTDR APD detector of the 4th wavelength as shown in Figure 6 because the circuit that the OTDR APD detector circuit of the 4th wavelength is well known to those skilled in the art is introduced no longer in detail herein.
The second laser detector 22 can connect the breaking point detection module, and the breaking point detection module is sampled, analyzed the electric signal of the second laser detector 22 outputs, just can determine the breakpoints of optical fiber position.Because the use of breaking point detection module is well known to those skilled in the art, therefore do not repeat them here.
The principle of work that realizes four tunnel optical signal transmission in the optical device is:
The driving circuit of the DFB transmitting illuminant of the 1.25Gbps of the first wavelength receives the electric signal that optical fiber communication equipment transmits, drive the light signal that the DFB transmitting illuminant that is packaged in TO-CAN1 sends the first wavelength according to the electric signal that receives, after the first optical lens 3 of the optical signals TO-CAN1 of the first wavelength penetrates, enter the optical fiber interface through the transmission of F1, F2 and F3 is laggard, first via optical signal transmission is finished;
Enter the second optical lens 4 of TO-CAN2 by the light signal of the second wave length of optical fiber input after the transmission of the reflection of F3 and F5, enter the APD pick-up probe after the second optical lens 4 of TO-CAN2 penetrates, the second tunnel optical signal transmission is finished;
It is the light signal of three-wavelength that the driving circuit of the OTDR DFB burst transmissions light source of three-wavelength drives the OTDR DFB burst transmissions light source emission wavelength that is packaged among the TO-CAN3, after optical signals TO-CAN3 the 3rd optical lens 5 of three-wavelength penetrates, enter the optical fiber interface through the transmission of the reflection of the second optical filter F2 and the 3rd optical filter F3 is laggard, the Third Road optical signal transmission is finished;
By the transmission through F3, F2 of the light signal of the 4th wavelength of optical fiber input, with the reflection of F1, the transmission of F4 enters the OTDR APD detector that receives the 4th wavelength light signal after penetrating by the 4th optical lens 6 of TO-CAN4, and the four tunnel optical signal transmission is finished.
As from the foregoing, realize the transmission of four road light signals by four groups of optical signal transmission passages that formed by optical filter and optical lens.
In the present embodiment, described the first wavelength is 1490nm, and second wave length is 1310nm, and three-wavelength is identical with the 4th wavelength, is 1625nm.
Also or the first wavelength be 1577nm, second wave length is 1270nm, three-wavelength and the 4th wavelength are 1625nm.
The optical device that is applied to the ethernet passive optical network of optical access network can realize communicating simultaneously work and breaking point detection work, perhaps only communicates work.
Embodiment 2:
The inner structure basic simlarity of the optical device among the embodiment 2, its difference are that the second generating laser is different with the second laser detector from the second generating laser among the embodiment one with the second laser detector.In the present embodiment, the second generating laser comprises the DFB transmitting illuminant of emission three-wavelength light signal, and the second laser detector comprises the APD pick-up probe that receives the 4th wavelength light signal.
Wherein, the DFB transmitting illuminant of launching the three-wavelength light signal is packaged among the TO-CAN3.The driving circuit of DFB transmitting illuminant receives the electric signal that optical fiber communication equipment transmits, and drives the Third Road light signal that this DFB transmitting illuminant is launched three-wavelength according to the electric signal that receives.
The APD pick-up probe that receives the 4th wavelength light signal is packaged among the TO-CAN4.The APD pick-up probe receives the four road light signal of the 4th wavelength, and is converted into electric signal, and the amplitude limiting amplifier circuit of APD amplifies laggard line output with the electric signal of APD pick-up probe conversion.
The optical device that is applied to the ethernet passive optical network of optical access network in the present embodiment can realize that two laser transceivers that are used for communication work work simultaneously, thereby greatly improves the bandwidth of Internet Transmission.
Thereby embodiment of the present utility model is owing to be provided with the transmission that four groups of optical signal transmission passages that are comprised of optical filter and optical lens are realized four road light signals in optical device.Thereby make optical fiber network system in communication, also can carry out breaking point detection.When not needing to carry out breaking point detection, optical device can realize that also two laser transceivers communicate work simultaneously, thereby greatly improves the bandwidth of Internet Transmission.
One of ordinary skill in the art will appreciate that all or part of step that realizes in above-described embodiment method is to come the relevant hardware of instruction to finish by program, this program can be stored in the computer read/write memory medium, as: ROM/RAM, magnetic disc, CD etc.
The above only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. receive and dispatch optical device for one kind four the tunnel, comprise: first to fourth laser diode module TO-CAN1, TO-CAN2, TO-CAN3, TO-CAN4 and the first to the 5th optical filter F1, F2, F3, F4 and F5, first, second generating laser and first, second laser detector, wherein:
Be packaged with the light source transmitting chip of the first optical lens and the first generating laser in the first laser diode module, after optical signals first optical lens of the first wavelength of the light source transmitting chip output of the first generating laser penetrates, through the transmission of the first optical filter, the second optical filter and the 3rd optical filter, coupled into optical fibres;
Be packaged with the optical signal detection chip of the second optical lens and the first laser detector in the second laser diode module, input behind the second optical lens of the second laser diode module through the reflection of the 3rd optical filter and the transmission of the 5th optical filter from the light signal of the second wave length of described optical fiber input, enter into the optical signal detection chip of the first laser detector;
The 3rd laser diode module packaging has the light source transmitting chip of the 3rd optical lens and the second generating laser, the light signal of the three-wavelength that the light source transmitting chip of the second generating laser sends is after the 3rd optical lens of the 3rd laser diode module penetrates, through the reflection of the second optical filter and the transmission of the 3rd optical filter, be coupled into described optical fiber;
Encapsulated the optical signal detection chip of the 4th optical lens and the second laser detector in the 4th laser diode module, by the transmission through the 3rd optical filter, the second optical filter of the light signal of the 4th wavelength of described optical fiber input, with the reflection of the first optical filter, and the transmission of the 4th optical filter enters into the optical signal detection chip of the second laser detector by the 4th optical lens of the 4th laser diode module.
2. four tunnel transmitting-receiving optical devices as claimed in claim 1 is characterized in that,
The first laser diode module is positioned at the high order end of optical device, and is relative with the interface of described optical fiber;
The second laser diode module is positioned at the right-hand member of optical device top, and is perpendicular with the line of the first laser diode module and optical fiber interface;
The 3rd laser diode module is positioned at the below of optical device, and is perpendicular with the line of the first laser diode module and optical fiber interface;
The 4th laser diode module is positioned at the left end of optical device top, and is perpendicular with the line of the first laser diode module and optical fiber interface.
3. four tunnel transmitting-receiving optical devices as claimed in claim 2 is characterized in that,
The first optical filter, the second optical filter and the 3rd optical filter are arranged between the first laser diode module and the optical fiber interface;
The first optical filter is arranged at the intersection point place of the line of the extended line of the 4th laser diode module and the first laser diode module and optical fiber interface, and the first optical lens angle at 45 ° of the first optical filter and the first laser diode module is with the optical lens of the 4th laser diode module angle at 45 °;
The second optical filter is arranged at the intersection point place of the line of the extended line of the 3rd laser diode module and the first laser diode module and optical fiber interface, and the optical lens angle at 45 ° of the second optical filter and the 3rd laser diode module;
The 3rd optical filter is arranged at the intersection point place of the line of the extended line of the second laser diode module and the first laser diode module and optical fiber interface, and the optical lens angle at 45 ° of the 3rd optical filter and the second laser diode module;
The 4th optical filter is arranged between the first optical filter and the 4th laser diode module, and on the extended line that is centered close to the 4th laser diode module of the 4th optical filter, and the 4th optical filter parallels with the optical lens of the 4th laser diode module;
The 5th optical filter is arranged between the 3rd optical filter and the second laser diode module, and on the extended line that is centered close to the second laser diode module of the 5th optical filter, and the 5th optical filter parallels with the optical lens of the second laser diode module.
4. four tunnel transmitting-receiving optical devices as claimed in claim 1 is characterized in that, the first laser diode module is coaxial type laser diode module or is the encapsulation of box type; The second laser diode module, the 3rd laser diode module and the 4th laser diode module are coaxial type laser diode module.
5. four tunnel transmitting-receiving optical devices as claimed in claim 1 is characterized in that,
The first optical filter plates the anti-film that increases of the anti-reflection film of the first wavelength and the 4th wavelength;
The second optical filter plates the anti-reflection film of the 4th wavelength light signal that increases anti-film and transmission 90% of anti-reflection film, reflection 10% the three-wavelength light signal of the first wavelength;
The 3rd optical filter plates the anti-reflection film of the first wavelength, the anti-reflection film that increases anti-film, three-wavelength of second wave length and the anti-reflection film of the 4th wavelength;
The 4th optical filter plates the anti-reflection film of the 4th wavelength;
The anti-reflection film of the 5th optical filter plating second wave length.
6. such as each described four tunnel transmitting-receiving optical devices of claim 1 to 5, it is characterized in that,
The first generating laser comprises the DFB transmitting illuminant of the 1.25Gbps that launches the first wavelength, perhaps comprises the DFB transmitting illuminant of the 2.488Gbps that launches the first wavelength, perhaps comprises the EML transmitting illuminant of the 9.953Gbps that launches the first wavelength;
The first laser detector comprises the APD pick-up probe of the 1.25Gbps that receives second wave length, perhaps comprises the APD pick-up probe of the 1.2488Gbps that receives second wave length, perhaps comprises the APD pick-up probe of the 2.488Gbps that receives second wave length;
The second Laser emission implement body comprises the OTDR DFB burst transmissions light source of three-wavelength;
The second laser acquisition implement body comprises the OTDR APD detector of the 4th wavelength.
7. four tunnel transmitting-receiving optical devices according to claim 6 is characterized in that the first wavelength is 1490nm, and second wave length is 1310nm, and three-wavelength is identical with the 4th wavelength, is 1625nm.
8. four tunnel transmitting-receiving optical devices according to claim 6 is characterized in that the first wavelength is 1577nm, and second wave length is 1270nm, and three-wavelength is identical with the 4th wavelength, is 1625nm.
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| CN 201220332825 CN202794620U (en) | 2012-07-10 | 2012-07-10 | Four-path receiving-transmitting optical device |
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| CN 201220332825 CN202794620U (en) | 2012-07-10 | 2012-07-10 | Four-path receiving-transmitting optical device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759781A (en) * | 2012-07-10 | 2012-10-31 | 青岛海信宽带多媒体技术有限公司 | Four-path receiving-transmitting optical device and optical signal transmission method |
| CN104317015A (en) * | 2014-10-13 | 2015-01-28 | 四川光恒通信技术有限公司 | Single-fibre four directional receiving and dispatching device and packing method |
| CN104730657A (en) * | 2015-04-03 | 2015-06-24 | 武汉电信器件有限公司 | Double-optical-port transceiving device |
| CN114755769A (en) * | 2022-04-27 | 2022-07-15 | 湖南光智通信技术有限公司 | Light emitter capable of high-efficiency coupling |
| CN116429381A (en) * | 2023-06-02 | 2023-07-14 | 成都光创联科技有限公司 | Optical path detection device of multi-port composite optical path device and assembly method |
-
2012
- 2012-07-10 CN CN 201220332825 patent/CN202794620U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759781A (en) * | 2012-07-10 | 2012-10-31 | 青岛海信宽带多媒体技术有限公司 | Four-path receiving-transmitting optical device and optical signal transmission method |
| CN104317015A (en) * | 2014-10-13 | 2015-01-28 | 四川光恒通信技术有限公司 | Single-fibre four directional receiving and dispatching device and packing method |
| CN104730657A (en) * | 2015-04-03 | 2015-06-24 | 武汉电信器件有限公司 | Double-optical-port transceiving device |
| CN104730657B (en) * | 2015-04-03 | 2017-01-04 | 武汉电信器件有限公司 | A kind of double light mouth transceiving device |
| CN114755769A (en) * | 2022-04-27 | 2022-07-15 | 湖南光智通信技术有限公司 | Light emitter capable of high-efficiency coupling |
| CN114755769B (en) * | 2022-04-27 | 2023-11-03 | 湖南光智通信技术有限公司 | Light emitter capable of efficiently coupling |
| CN116429381A (en) * | 2023-06-02 | 2023-07-14 | 成都光创联科技有限公司 | Optical path detection device of multi-port composite optical path device and assembly method |
| CN116429381B (en) * | 2023-06-02 | 2023-08-18 | 成都光创联科技有限公司 | Optical path detection device of multi-port composite optical path device and assembly method |
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