CN102662215A - Wavelength division multiplexing photoelectric emission module - Google Patents
Wavelength division multiplexing photoelectric emission module Download PDFInfo
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- CN102662215A CN102662215A CN2012101403180A CN201210140318A CN102662215A CN 102662215 A CN102662215 A CN 102662215A CN 2012101403180 A CN2012101403180 A CN 2012101403180A CN 201210140318 A CN201210140318 A CN 201210140318A CN 102662215 A CN102662215 A CN 102662215A
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Abstract
The invention relates to a wavelength division multiplexing photoelectric emission module, which comprises a polarization beam splitting prism and laser emitters, wherein laser beams with different wavelengths and emitted by a plurality of laser emitters are coupled to a same optical fiber and are emergent through the polarization beam splitting prism; a sandwich optical component is arranged between at least one laser beam and the polarization beam splitting prism and consists of a filter and quarter-wave plate; the quarter-wave plate are positioned on two sides of the filter to form a sandwich structure; the laser beam of which the wavelength is equal to the transmission wavelength of the filter is transmitted through the sandwich optical component, so that the polarization direction is rotated by 90 degrees; and other laser beams with other wavelengths and emitted to the sandwich optical component are transmitted through the quarter-wave plate again after being reflected by the quarter-wave plate and the filter, so that the polarization directions are rotated by 90 degrees. The wavelength division multiplexing photoelectric emission module can emit multi-wavelength laser beams in a concentrative way in a relatively small space, so that the manufacturing cost is reduced.
Description
Technical field
The present invention relates to optical field, specially refer to a kind of wavelength-division multiplex photoelectricity transmitter module that is used for the laser beam of a plurality of wavelength is merged transmission.
Background technology
The structure and the principle of work of present division multiplex fibre-optic communication wave system are following: transmitting terminal, at first utilize the photoemission module to change into wavelength optical signals two or more electric signal, by two or multifiber output; Utilizing optical multiplexer that wavelength optical signals is merged in the same optical fiber then transmits; At receiving end, utilize demodulation multiplexer again with the separate optical signals to two of various wavelength piece or multifiber; Utilize photoreceiver that each road signal is changed into electric signal respectively at last.
In the prior art, traditional free space optical learns a skill and has the shortcoming of " Z " font light path, is not promptly blocked for light path effectively transmits; Light beam is tiltedly got on each tablet filter with big incident angle; Size thereby change are big on the one hand, another invention, and bigger incident angle has brought polarization effect; Requirement to optical filter is also high, realizes that cost is bigger.
Summary of the invention
The objective of the invention is to overcome the deficiency that above-mentioned prior art exists, a kind of new wavelength-division multiplex photoelectricity transmitter module is provided.Wavelength-division multiplex photoelectricity transmitter module of the present invention wants in less space, to realize the concentrated emission of multiwavelength laser light beam, and the requirement of filter plate is reduced to reduce cost.
In order to reach the foregoing invention purpose, the technical scheme that patent of the present invention provides is following:
A kind of wavelength-division multiplex photoelectricity transmitter module; It is characterized in that; This module includes polarization beam splitter prism and generating laser; Different wavelength of laser light beam outgoing in described polarization beam splitter prism is coupled to same optical fiber that a plurality of generating lasers send; Between at least one laser beam and polarization beam splitter prism, be provided with sandwich optical module, described sandwich optical module is made up of a filter plate and two quarter-wave plates, and described quarter-wave plate is positioned at the both sides of filter plate to form the Layer cake structure; Crossing described sandwich optical module with the laser beam transmission of said filter plate transmission peak wavelength revolves the polarization direction to turn 90 degrees; Other wave length laser beams to the outgoing of described sandwich optical module reflect through quarter-wave plate transmission and said filter plate, through described quarter-wave plate the polarization direction are revolved once more and turn 90 degrees.
Implementation as a kind of 3 passages of wavelength-division multiplex photoelectricity transmitter module of the present invention; This module includes a polarization beam splitter prism and three generating lasers; The laser beam wavelength that three said generating lasers send is respectively λ 1, λ 2 and λ 3; Wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism; The polarization state of wavelength X 1 laser beam is the P attitude; Wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam; The polarization state of wavelength X 2 laser beams is the P attitude, and the polarization state of wavelength X 3 laser beams is the P attitude, on the light path of wavelength X 1, λ 2 and λ 3 laser beams, is respectively equipped with λ 1 filter plate, λ 2 filter plates and λ 3 filter plates of corresponding wavelength; Respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1 laser beam of polarization beam splitter prism transmission and by the wavelength X 2 of the 90 degree reflections of reflection of polarization face in the polarization beam splitter prism and λ 3 laser beam line focus Lens Coupling to same optical fiber.
Implementation as another kind 3 passages of wavelength-division multiplex photoelectricity transmitter module of the present invention; This module includes a polarization beam splitter prism and three generating lasers; The laser beam wavelength that three said generating lasers send is respectively λ 1, λ 2 and λ 3; Wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism; The polarization state of wavelength X 1 laser beam is P or S attitude; Wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam, and the polarization state of wavelength X 2 laser beams is the S attitude, and the polarization state of wavelength X 3 laser beams is the P attitude; On the light path of wavelength X 1, λ 2 and λ 3 laser beams, be respectively equipped with λ 1 filter plate, λ 2 filter plates and λ 3 filter plates of corresponding wavelength; Respectively be provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1, λ 2 and the λ 3 laser beam line focus Lens Coupling of polarization beam splitter prism outgoing to same optical fiber.
In wavelength-division multiplex photoelectricity transmitter module of the present invention; As a kind of alternative structure; Except the horizontal side at said polarization beam splitter prism is provided with sandwich optical module and laser beam; Also be provided with the combination of a quarter-wave plate and completely reflecting mirror, through quarter-wave plate transmission and the reflection of said completely reflecting mirror, through described quarter-wave plate the polarization direction revolved once more and turn 90 degrees to completely reflecting mirror emitting laser light beam at the relative horizontal opposite side of polarization beam splitter prism.
Implementation as the third 3 passage of wavelength-division multiplex photoelectricity transmitter module of the present invention; This module includes two polarization beam splitter prisms and three generating lasers; The laser beam wavelength that three said generating lasers send is respectively λ 1, λ 2 and λ 3; Wavelength X 1 generating laser, first polarization beam splitter prism and second polarization beam splitter prism are arranged in order along straight line; The polarization state of wavelength X 1 laser beam is P or S attitude; Wavelength X 2 generating lasers and wavelength X 3 generating lasers lay respectively at horizontal the same side of first polarization beam splitter prism and second polarization beam splitter prism; Horizontal opposite side at first polarization beam splitter prism and second polarization beam splitter prism respectively is placed with a quarter-wave plate and completely reflecting mirror combination; The polarization state of wavelength X 2 laser beams and wavelength X 3 laser beams is the S attitude, on the light path of wavelength X 1, λ 2 and λ 3 laser beams, is respectively equipped with λ 1 filter plate, λ 2 filter plates and λ 3 filter plates of corresponding wavelength, respectively is provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module; Respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1, λ 2 and the λ 3 laser beam line focus Lens Coupling of the second polarization beam splitter prism outgoing to same optical fiber.
A kind of multichannel implementation as wavelength-division multiplex photoelectricity transmitter module of the present invention; Between said polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism; Both lateral sides at new polarization beam splitter prism respectively is provided with the new generating laser that sends different wave length laser beams; One of the polarization state of new laser beam that generating laser is sent out is the P attitude; One is the S attitude; Two quarter-wave plates that between each new generating laser and polarization beam splitter prism, are equipped with the filter plate of respective wavelength and are distributed in the filter plate both sides of respective wavelength, new polarization beam splitter prism emitting laser light beam is coupled in the same optical fiber through condenser lens.
Another kind of multichannel implementation as wavelength-division multiplex photoelectricity transmitter module of the present invention; Between said second polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism; A horizontal side of new polarization beam splitter prism is provided with the new generating laser of an emission different wave length laser beams; Relative horizontal opposite side is provided with full emission prism; One of the polarization state of new laser beam that generating laser is sent out is the S attitude, and two quarter-wave plates that between new generating laser and new polarization beam splitter prism, are equipped with the filter plate of respective wavelength and are distributed in the filter plate both sides of respective wavelength are provided with quarter-wave plate between completely reflecting mirror and new polarization beam splitter prism.
Based on technique scheme, wavelength-division multiplex photoelectricity transmitter module of the present invention compared with prior art has following technological merit:
The present invention learns a skill with free space optical and has realized that in the space of a compactness light with a plurality of generating lasers exports from same optical fiber; And since novelty utilized the combination of quarter-wave plate and catoptron or optical filter; Realize the former road round-trip transmission of light path, thereby can zero degree incident use optical filter.This invention overcome traditional free space optical learn a skill the size of " Z " font light path big with realize the high shortcoming of cost.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 in the wavelength-division multiplex photoelectricity transmitter module of the present invention.
Fig. 2 is the structural representation of embodiment 3 in the wavelength-division multiplex photoelectricity transmitter module of the present invention.
Fig. 3 is the structural representation of embodiment 4 in the wavelength-division multiplex photoelectricity transmitter module of the present invention.
Fig. 4 is the structural representation of embodiment 5 in the wavelength-division multiplex photoelectricity transmitter module of the present invention.
Embodiment
Below we combine accompanying drawing and concrete embodiment to come wavelength-division multiplex photoelectricity transmitter module of the present invention done further in detail to set forth, in the hope of its architectural feature and workflow are described more cheer and brightly, but can not limit protection scope of the present invention with this.
Wavelength-division multiplex photoelectricity transmitter module of the present invention structurally includes polarization beam splitter prism and generating laser, and overall thought is different wavelength of laser light beam outgoing in polarization beam splitter prism is coupled to same optical fiber that a plurality of generating lasers are sent.In order to achieve the above object; Between at least one laser beam and polarization beam splitter prism, be provided with sandwich optical module; Described sandwich optical module is made up of a filter plate and two quarter-wave plates, and described quarter-wave plate is positioned at the both sides of filter plate to form the Layer cake structure.This Layer cake structure has following characteristics: cross described sandwich optical module with the laser beam transmission of said filter plate transmission peak wavelength and the polarization direction is revolved turn 90 degrees; Both can the polarization direction of the laser beam of P polarization state have been revolved and turn 90 degrees the laser beam that forms the S polarization state, and can the polarization direction of the laser beam of S polarization state have been revolved again and turn 90 degrees the laser beam that forms the P polarization state.And reflect through quarter-wave plate transmission and said filter plate to other wave length laser beams of described sandwich optical module outgoing; Through described quarter-wave plate the polarization direction being revolved once more turn 90 degrees, equally also can realize the conversion of P polarization state and S polarization state.
As a kind of alternative structure; Except the horizontal side at said polarization beam splitter prism is provided with sandwich optical module and laser beam; Also be provided with the combination of a quarter-wave plate and completely reflecting mirror at the relative horizontal opposite side of polarization beam splitter prism;, through described quarter-wave plate the polarization direction is revolved once more and turn 90 degrees through quarter-wave plate transmission and the reflection of said completely reflecting mirror to completely reflecting mirror emitting laser light beam.The combination of completely reflecting mirror and quarter-wave plate can be accomplished the conversion of polarization state between P and S of any wave length laser beams.
As a characteristic of polarization beam splitter prism, the whole transmissions of its laser beam to the P polarization state, and the laser beam of S polarization state is all reflected, be to make the laser beam direction of propagation of the S polarization state of incident rotate 90 degree backs through its reflection of polarization face to penetrate.
The present invention is exactly the different settings that utilize the combination of polarization beam splitter prism, sandwich optical module and quarter-wave plate and completely reflecting mirror; Realize a plurality of different wavelength of laser light beam coupling to in the root optical fiber, to reach manufacturing and designing of new structure type wavelength-division multiplex photoelectricity transmitter module.
Please see Fig. 1, can know that present embodiment is 5 a passage wavelength division multiplexed lights electricity transmitter module by figure; Comprising five generating laser LD; Send five kinds of different wavelength of laser light beams respectively accordingly, λ 1, λ 2, λ 3, λ 4 and λ 5, the polarization state of laser beam is respectively: the laser beam polarization state of wavelength X 1 is the P attitude; The laser beam polarization state of wavelength X 2 is the S attitude; The laser beam polarization state of wavelength X 3 is the P attitude, and the laser beam polarization state of wavelength X 4 is the S attitude, and the laser beam polarization state of wavelength X 5 is the P attitude.The polarization state of laser beam is to represent with strigula among the P attitude figure, and the polarization state of laser beam is to represent with black circle among the S attitude figure.In addition; Wavelength-division multiplex photoelectricity transmitter module also includes two polarization beam splitter prisms and five filter plates that are directed to wavelength X 1, λ 2, λ 3, λ 4 and λ 5 respectively; Wherein, Be directed in four filter plates of wavelength X 2, λ 3, λ 4 and λ 5, the both sides of each filter plate respectively are provided with a quarter-wave plate, represent with λ/4 among this quarter-wave plate figure.Sending generating laser LD (λ 1), first polarization beam splitter prism and second polarization beam splitter prism of wavelength X 1 places along straight line successively.Wherein, the generating laser LD (λ 3) that sends the generating laser LD (λ 2) of wavelength X 2 and send wavelength X 3 places the both lateral sides of first polarization beam splitter prism respectively, and the laser beam that sends relatively is incident in first polarization beam splitter prism; The generating laser LD (λ 5) that sends the generating laser LD (λ 4) of wavelength X 4 and send wavelength X 5 places the both lateral sides of second polarization beam splitter prism respectively, and the laser beam that sends relatively is incident in second polarization beam splitter prism.At last, including wavelength X 1, λ 2, λ 3, λ 4 and λ 5 synthetic laser light beams is coupled in the same optical fiber through condenser lens 6 and exports.
Because polarization beam splitter prism is for the light beam total transmissivity of P polarization state, for the light beam total reflection of S polarization state, the present invention utilizes this principle exactly, and the different wavelength of laser light beam coupling that different generating lasers send is exported in same optical fiber.In order to access the light beam of single wavelength, we respectively are provided with a filter plate on the light path of each generating laser, its objective is to make the light of respective wavelength to pass through, and the light of other wavelength then is reflected back.
In the present embodiment, the laser beam polarization state of wavelength X 1 is the P attitude, and it directly passes wavelength X 1 filter plate, first polarization beam splitter prism and second polarization beam splitter prism; And the laser beam polarization state of wavelength X 2 is the S attitude; It at first passes a quarter-wave plate; Make laser beam convert circularly polarized light into from the S polarized light; And then pass wavelength X 2 filter plates and another quarter-wave plate, become the P polarized light from circularly polarized light and be incident to first polarization beam splitter prism.The laser beam polarization state of wavelength X 3 is the P attitude; It at first passes a quarter-wave plate; Laser beam converts circularly polarized light into from the P polarized light; And then pass wavelength X 2 filter plates and another quarter-wave plate, its polarization state is converted into the S attitude from circularly polarized light again and is incident to first polarization beam splitter prism.Because the characteristic of polarization beam splitter prism; Be directed to the wavelength X 2 and wavelength X 3 laser beams of relative position incident; Wavelength X 2 laser beams of P polarization state are from the first polarization beam splitter prism transmission; Make laser beam convert circularly polarized light into through quarter-wave plate then, run into wavelength X 3 filter plates then and reflect, make circularly polarized light become linearly polarized light through quarter-wave plate once more from linearly polarized light; Its polarization state revolve turn 90 degrees become the S attitude; When wavelength X 2 laser beams reached first polarization beam splitter prism once more like this, the same with the polarization state of wavelength X 3 laser beams all was the S attitude, thereby longitudinally exported second polarization beam splitter prism to behind reflection of polarization face reflection 90 degree through first polarization beam splitter prism.
The polarization state that is positioned at wavelength X 4 that the generating laser of the second polarization beam splitter prism both lateral sides sends and the wavelength X 5 laser beams polarization state with the wavelength X 2 of the first polarization beam splitter prism both sides and wavelength X 3 laser beams respectively is the same.In its light path the setting of quarter-wave plate and filter plate too, so it can cause wavelength X 4 and wavelength X 5 laser beams vertically to be exported from second polarization beam splitter prism with the S polarization state equally.Owing to can reflect and make polarization state revolve through four minutes one wave plates twice to turn 90 degrees into the P attitude through wavelength X 4 filter plates from the wavelength X 2 of the S attitude of the first polarization beam splitter prism outgoing and wavelength X 3 laser beams; Again through wavelength X 5 filter plates reflections with make polarization state revolve through four minutes one wave plates twice to turn 90 degrees into the S attitude, thereby longitudinally export behind reflection of polarization face reflection 90 degree through second polarization beam splitter prism.
From the above, having comprised polarization state from the vertical emitting laser light beam of second polarization beam splitter prism is that wavelength X 1 laser beam of P attitude and the synthetic a branch of light of λ 2, λ 3, λ 4 and λ 5 laser beams that polarization state is the S attitude are coupled to the same optical fiber through condenser lens and export.
Structure in the present embodiment and light path and embodiment 1 are roughly the same, and difference is that the laser beam polarization state of wavelength X 1 is the S attitude, but not the P attitude.Like this; Wavelength X 1 laser beam of S attitude can be longitudinally through the reflection of polarization face reflection of first polarization beam splitter prism; At first pass a quarter-wave plate, make linearly polarized light be converted into circularly polarized light, then through after the reflection of wavelength X 2 filter plates through same quarter-wave plate; Convert linearly polarized light into from circularly polarized light again, its polarization state revolves to turn 90 degrees to be become the P polarized light and laterally is incident in first polarization beam splitter prism.Laterally outgoing of edge after the transmission from first polarization beam splitter prism; At first pass a quarter-wave plate, make linearly polarized light be converted into circularly polarized light, then through after the reflection of wavelength X 3 filter plates through same quarter-wave plate; Convert linearly polarized light into from circularly polarized light again; Its polarization state revolves to turn 90 degrees to be become the S polarized light and laterally is incident in first polarization beam splitter prism, and the 90 degree reflections of the reflection of polarization face of first polarization beam splitter prism are along vertical outgoing of first polarization beam splitter prism.Same light path walking manner ground through second polarization beam splitter prism after with the vertical outgoing of S attitude.Like this, in the present embodiment, wavelength X 1, λ 2, λ 3, λ 4 and 5 five laser beams of λ all are coupled in the same optical fiber through condenser lens with the synthetic a branch of light of S polarization state and export.
As shown in Figure 2; Present embodiment and embodiment 1 are roughly the same; Difference is that the laser beam polarization state of wavelength X 2 is the P attitude; This laser beam can see through behind wavelength X 2 filter plates directly into being incident upon in first polarization beam splitter prism and transmission like this, and combination makes polarization converted become the S attitude with wavelength X 3 filter plates through quarter-wave plate again, is incident in first polarization beam splitter prism to reflect through reflection of polarization face 90 degree again.The reason of doing like this is that because the laser beam polarization state of wavelength X 1 is the P attitude, it directly passes wavelength X 1 filter plate, first polarization beam splitter prism and second polarization beam splitter prism.It need not pass through polarization converted just can be from the first polarization beam splitter prism transmission, and the laser beam polarization state of wavelength X 3 becomes the S attitude after for P attitude conversion 90 degree, directly through in first polarization beam splitter prism through the 90 degree reflections of reflection of polarization face.In view of structure is provided with, between the generating laser that sends wavelength X 2 laser beams and first polarization beam splitter prism, only needs to place wavelength X 2 filter plates, and need not place quarter-wave plate.
As shown in Figure 3, present embodiment is a triple channel photoemission module, and it includes a polarization beam splitter prism, three generating lasers, and three generating lasers send three kinds of different wavelength of laser light beam: λ 1, λ 2 and λ 3 respectively accordingly.Wherein, the laser beam polarization state of wavelength X 1 is P or is the S attitude that the laser beam polarization state of wavelength X 2 is the S attitude, and the laser beam polarization state of wavelength X 3 is the P attitude.Wavelength be two laser beams of λ 2 and λ 3 along the relative incident of the both lateral sides of polarization beam splitter prism, the laser beam of wavelength X 1 is along vertical side incident of polarization beam splitter prism.
Based on same principle of work,, comprised polarization state and be wavelength X 1 laser beam of P attitude and λ 2 that polarization state is the S attitude and be coupled in the same optical fiber with the synthetic a branch of smooth scioptics of λ 3 laser beams and export if the laser beam polarization state of wavelength X 1 is the P attitude.
If the laser beam polarization state of wavelength X 1 is the S attitude, wavelength X 1, λ 2 and λ 3 laser beams all are coupled in the same optical fiber through condenser lens with the synthetic a branch of light of S polarization state and export.
As shown in Figure 4, present embodiment is the structure alienation of triple channel photoemission module, includes three generating lasers and two polarization beam splitter prisms on its structure, and the filter plate of three respective wavelength.Three generating lasers send three kinds of different wavelength of laser light beam: λ 1, λ 2 and λ 3 respectively accordingly.Wherein, the laser beam polarization state of wavelength X 1 is P or is the S attitude that the laser beam polarization state of wavelength X 2 is the S attitude, and the laser beam polarization state of wavelength X 3 is the S attitude.
In the present embodiment, the laser beam polarization state of wavelength X 1 is the P attitude, and it directly passes wavelength X 1 filter plate 1, first polarization beam splitter prism 4 and second polarization beam splitter prism 5 successively.Be provided with the generating laser LD (λ 2) of the laser beam of emission wavelength lambda 2 in a horizontal side of first polarization beam splitter prism 4, its relative horizontal opposite side is provided with a completely reflecting mirror 7.Between the generating laser LD (λ 2) of the laser beam of emission wavelength lambda 2 and first polarization beam splitter prism 4, be provided with a λ 2 filter plates 2, two quarter-wave plate λ/4, between the completely reflecting mirror 7 and first polarization beam splitter prism 4, be provided with quarter-wave plate λ/4.
The laser beam of wavelength X 2 revolves polarization state through quarter-wave plate, wavelength X 2 filter plates 2, quarter-wave plate successively and turn 90 degrees into the P attitude along laterally being incident to first polarization beam splitter prism 4; By the laser beam of the wavelength X 2 of first polarization beam splitter prism, 4 horizontal opposite side outgoing earlier through a quarter-wave plate; And then through passing through quarter-wave plate once more after completely reflecting mirror 7 reflections; Make its polarization state revolve to turn 90 degrees that becoming the S attitude laterally is incident to first polarization beam splitter prism 4, through being incident to second polarization beam splitter prism 5 after the 90 degree reflections of reflection of polarization face.
Wavelength is that the laser beam of λ 3 also is to become the P attitude through two quarter-wave plate rear polarizer attitudes; And the laser beam S polarization state of wavelength X 2 is incident to second polarization spectroscope 5 after reflection of polarization face 90 degree reflex to horizontal outgoing; Make polarization state revolve and turn 90 degrees and be the P attitude through 3 reflections of wavelength X 3 filter plates, twice process quarter-wave plate; It is along laterally being incident to second polarization beam splitter prism 5; By the laser beam of the wavelength X 3 of second polarization beam splitter prism, 5 horizontal opposite side outgoing earlier through a quarter-wave plate; And then through passing through quarter-wave plate once more after completely reflecting mirror 8 reflections; Make its polarization state revolve to turn 90 degrees that becoming the S attitude laterally is incident to second polarization beam splitter prism,, synthesize a branch of laser beam and be coupled in the same optical fiber through condenser lens 6 and export through the 90 degree reflection back outgoing of reflection of polarization face.
Based on same principle of work, if the laser beam polarization state of wavelength X 1 is the S attitude, wavelength X 1, λ 2 and λ 3 laser beams all are coupled in the same optical fiber through condenser lens with the synthetic a branch of light of S polarization state and export.
Except 5 passages and 3 passages, under the design philosophy of the present invention, can also increase more polarization beam splitter prism and realize more multichannel laser coupled output.
The present invention realizes that in the free space of a compactness light of the different wave length of a plurality of generating lasers exports from same optical fiber.Its core is to utilize the combination of two quarter-wave plates and filter plate, and perhaps the combination of quarter-wave plate and completely reflecting mirror realizes the round-trip transmission of light path, thereby can zero degree incident use filter plate.
Claims (8)
1. wavelength-division multiplex photoelectricity transmitter module; It is characterized in that; This module includes polarization beam splitter prism and generating laser; Different wavelength of laser light beam outgoing in described polarization beam splitter prism is coupled to same optical fiber that a plurality of generating lasers send; Between at least one laser beam and polarization beam splitter prism, be provided with sandwich optical module, described sandwich optical module is made up of a filter plate and two quarter-wave plates, and described quarter-wave plate is positioned at the both sides of filter plate to form the Layer cake structure.
2. a kind of wavelength-division multiplex photoelectricity transmitter module according to claim 1; It is characterized in that; At least one side of the both lateral sides of said polarization beam splitter prism is provided with a sandwich optical module; Crossing described sandwich optical module with the laser beam transmission of said filter plate transmission peak wavelength revolves the polarization direction to turn 90 degrees; Other wave length laser beams to the outgoing of described sandwich optical module reflect through quarter-wave plate transmission and said filter plate, through described quarter-wave plate the polarization direction are revolved once more and turn 90 degrees.
3. a kind of wavelength-division multiplex photoelectricity transmitter module according to claim 2; It is characterized in that; This module includes a polarization beam splitter prism and three generating lasers; The laser beam wavelength that three said generating lasers send is respectively λ 1, λ 2 and λ 3; Wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism; The polarization state of wavelength X 1 laser beam is the P attitude, and wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam, and the polarization state of wavelength X 2 laser beams is the P attitude; The polarization state of wavelength X 3 laser beams is the P attitude; On the light path of wavelength X 1, λ 2 and λ 3 laser beams, be respectively equipped with λ 1 filter plate, λ 2 filter plates and λ 3 filter plates of corresponding wavelength, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1 laser beam of polarization beam splitter prism transmission and by the wavelength X 2 of the 90 degree reflections of reflection of polarization face in the polarization beam splitter prism and λ 3 laser beam line focus Lens Coupling to same optical fiber.
4. a kind of wavelength-division multiplex photoelectricity transmitter module according to claim 2; It is characterized in that; This module includes a polarization beam splitter prism and three generating lasers; The laser beam wavelength that three said generating lasers send is respectively λ 1, λ 2 and λ 3; Wherein wavelength X 1 generating laser is positioned at vertical side of polarization beam splitter prism, and the polarization state of wavelength X 1 laser beam is P or S attitude, and wavelength X 2 generating lasers and wavelength X 3 generating lasers are respectively in the both lateral sides of polarization beam splitter prism relatively to send laser beam; The polarization state of wavelength X 2 laser beams is the S attitude; The polarization state of wavelength X 3 laser beams is the P attitude, on the light path of wavelength X 1, λ 2 and λ 3 laser beams, is respectively equipped with λ 1 filter plate, λ 2 filter plates and λ 3 filter plates of corresponding wavelength, respectively is provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module; Respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1, λ 2 and the λ 3 laser beam line focus Lens Coupling of polarization beam splitter prism outgoing to same optical fiber.
5. according to claim 3 or 4 described a kind of wavelength-division multiplex photoelectricity transmitter modules; It is characterized in that; Between said polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism; Both lateral sides at new polarization beam splitter prism respectively is provided with the new generating laser that sends different wave length laser beams; One of the polarization state of new laser beam that generating laser is sent out is the P attitude; One is the S attitude, and filter plate and two quarter-wave plates thereof of between each new generating laser and polarization beam splitter prism, being equipped with respective wavelength are to form described sandwich optical module, and new polarization beam splitter prism emitting laser light beam is coupled in the same optical fiber through condenser lens.
6. a kind of wavelength-division multiplex photoelectricity transmitter module according to claim 1; It is characterized in that; Horizontal side at said polarization beam splitter prism is provided with sandwich optical module; Relative horizontal opposite side is provided with the combination of quarter-wave plate and completely reflecting mirror; Cross described sandwich optical module with the laser beam transmission of said filter plate transmission peak wavelength and the polarization direction is revolved turn 90 degrees, through quarter-wave plate transmission and the reflection of said completely reflecting mirror, through described quarter-wave plate the polarization direction is revolved once more and turn 90 degrees to completely reflecting mirror emitting laser light beam.
7. a kind of wavelength-division multiplex photoelectricity transmitter module according to claim 6; It is characterized in that; This module includes two polarization beam splitter prisms and three generating lasers; The laser beam wavelength that three said generating lasers send is respectively λ 1, λ 2 and λ 3; Wavelength X 1 generating laser, first polarization beam splitter prism and second polarization beam splitter prism are arranged in order along straight line; The polarization state of wavelength X 1 laser beam is P or S attitude; Wavelength X 2 generating lasers and wavelength X 3 generating lasers lay respectively at horizontal the same side of first polarization beam splitter prism and second polarization beam splitter prism, respectively are placed with a quarter-wave plate and completely reflecting mirror combination at the horizontal opposite side of first polarization beam splitter prism and second polarization beam splitter prism, and the polarization state of wavelength X 2 laser beams and wavelength X 3 laser beams is the S attitude; On the light path of wavelength X 1, λ 2 and λ 3 laser beams, be respectively equipped with λ 1 filter plate, λ 2 filter plates and λ 3 filter plates of corresponding wavelength; Respectively be provided with a quarter-wave plate in the both sides of wavelength X 2 filter plates to form described sandwich optical module, respectively be provided with a quarter-wave plate in the both sides of wavelength X 3 filter plates forming described sandwich optical module, by wavelength X 1, λ 2 and the λ 3 laser beam line focus Lens Coupling of the second polarization beam splitter prism outgoing to same optical fiber.
8. a kind of wavelength-division multiplex photoelectricity transmitter module according to claim 7; It is characterized in that; Between said second polarization beam splitter prism and condenser lens, also be provided with at least one new polarization beam splitter prism; A horizontal side of new polarization beam splitter prism is provided with the new generating laser of an emission different wave length laser beams; Relative horizontal opposite side is provided with full emission prism; The polarization state of new laser beam that generating laser is sent out is the S attitude, and filter plate and two quarter-wave plates that between new generating laser and new polarization beam splitter prism, is equipped with respective wavelength to be forming described sandwich optical module, between completely reflecting mirror and new polarization beam splitter prism, is provided with quarter-wave plate.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103257403A (en) * | 2013-05-20 | 2013-08-21 | 武汉锐奥特科技有限公司 | Wavelength-division multiplexing optical device and wavelength-decomposition multiplexing optical device |
| CN103905120A (en) * | 2014-04-27 | 2014-07-02 | 桂林理工大学 | Cordwood visible light communication color division multiplex experimental device |
| CN104813550A (en) * | 2012-11-26 | 2015-07-29 | 三菱电机株式会社 | Laser apparatus |
| CN104934841A (en) * | 2015-06-23 | 2015-09-23 | 南京朗研光电科技有限公司 | High-energy pulse laser separation and compression method and device |
| CN105911535A (en) * | 2016-06-12 | 2016-08-31 | 中国科学院上海技术物理研究所 | Laser radar similar multi-wavelength wavelength division multiplexing detection system |
| CN108535811A (en) * | 2018-03-21 | 2018-09-14 | 武汉电信器件有限公司 | A kind of the transmitting optical device and method of polarized composite wave multiplexing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493121B1 (en) * | 1998-04-30 | 2002-12-10 | Infineon Technologies Ag | Bidirectional module for multichannel use |
| CN101080660A (en) * | 2004-02-05 | 2007-11-28 | 奥普林克通信公司 | Integrated optical multiplexer and demultiplexer |
| CN202649536U (en) * | 2012-05-09 | 2013-01-02 | 无锡波汇光电科技有限公司 | Photoelectric emission module |
-
2012
- 2012-05-09 CN CN201210140318.0A patent/CN102662215B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6493121B1 (en) * | 1998-04-30 | 2002-12-10 | Infineon Technologies Ag | Bidirectional module for multichannel use |
| CN101080660A (en) * | 2004-02-05 | 2007-11-28 | 奥普林克通信公司 | Integrated optical multiplexer and demultiplexer |
| CN202649536U (en) * | 2012-05-09 | 2013-01-02 | 无锡波汇光电科技有限公司 | Photoelectric emission module |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104813550A (en) * | 2012-11-26 | 2015-07-29 | 三菱电机株式会社 | Laser apparatus |
| CN103257403A (en) * | 2013-05-20 | 2013-08-21 | 武汉锐奥特科技有限公司 | Wavelength-division multiplexing optical device and wavelength-decomposition multiplexing optical device |
| CN103905120A (en) * | 2014-04-27 | 2014-07-02 | 桂林理工大学 | Cordwood visible light communication color division multiplex experimental device |
| CN104934841A (en) * | 2015-06-23 | 2015-09-23 | 南京朗研光电科技有限公司 | High-energy pulse laser separation and compression method and device |
| CN105911535A (en) * | 2016-06-12 | 2016-08-31 | 中国科学院上海技术物理研究所 | Laser radar similar multi-wavelength wavelength division multiplexing detection system |
| CN105911535B (en) * | 2016-06-12 | 2018-06-29 | 中国科学院上海技术物理研究所 | Wavelength-division multiplex detection system similar in a kind of laser radar multi-wavelength |
| CN108535811A (en) * | 2018-03-21 | 2018-09-14 | 武汉电信器件有限公司 | A kind of the transmitting optical device and method of polarized composite wave multiplexing |
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