CN104577708B - The optical assembly for high-speed transfer is monitored with backlight - Google Patents

The optical assembly for high-speed transfer is monitored with backlight Download PDF

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Publication number
CN104577708B
CN104577708B CN201410759532.3A CN201410759532A CN104577708B CN 104577708 B CN104577708 B CN 104577708B CN 201410759532 A CN201410759532 A CN 201410759532A CN 104577708 B CN104577708 B CN 104577708B
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China
Prior art keywords
lens
diaphragm
light
incident
backlight
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CN201410759532.3A
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Chinese (zh)
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CN104577708A (en
Inventor
杨震
王长虹
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武汉华工正源光子技术有限公司
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Publication of CN104577708A publication Critical patent/CN104577708A/en
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Abstract

The present invention relates to a kind of optical assembly monitored with backlight for high-speed transfer, including VCSEL lasers, incident collimation lens, lens matrix, diaphragm, outgoing condenser lens and backlight monitoring lens;Lens matrix is provided with the first light beam steering face and the second light beam steering face, and on the first light beam steering face, diaphragm dimidiation part, its top half is anti-reflection film to diaphragm, and the latter half is energy spectro-film;It is incident on diaphragm by incident collimation lens from the light of VCSEL laser emittings, a part of light is projected by after diaphragm reflection by outgoing condenser lens, another part light is refracted into diaphragm matrix by the energy spectro-film of diaphragm, it is incident on the second light beam steering face after another surface total reflection of diaphragm, and is projected by backlight monitoring lens after being totally reflected.The optical assembly monitored for high-speed transfer with backlight can effectively solve at any time monitor Output optical power in the prior art, so that Real-time Feedback adjusts the problem of laser threshold current.

Description

The optical assembly for high-speed transfer is monitored with backlight

Technical field

The present invention relates to a kind of optical assembly monitored with backlight for high-speed transfer, belong to optical communication field.

Background technology

With the development of optical fiber communication technology, data center field and search engine, field of cloud calculation are also obtained rapidly Development.Many communication companies go to solve a large amount of audios by the use of laser and optical fiber on the basis of communication network as main method, The transmission of video and data.In order to obtain high bandwidth, light source generally uses VCSEL lasers.

In many applications, the Output optical power of laser is influenceed by several factors.First, laser was being used Cheng Zhong, the change of environment temperature will influence the output of luminous power.Main reason is that it is with the change of temperature, and laser swashs Penetrate threshold current also to change therewith, so as to the change for causing luminous power to export.Second factor of influence luminous power exporting change It is laser in use aging.Its reason is also due to the long-term use of laser, the lasing threshold of laser Value electric current also changes therewith, so as to the change for causing luminous power to export.

Based on the various factors of influence VCSEL laser performances, kept in use in order to ensure laser optimal Power output, it should Output optical power is monitored, and can't accomplish to monitor Output optical power at any time in the prior art Carry out Real-time Feedback regulation laser threshold current, also cannot just solve the problems, such as the Output optical power of laser can change.

It is therefore desirable to design a kind of optical assembly monitored with backlight for high-speed transfer, to overcome above mentioned problem.

The content of the invention

Defect it is an object of the invention to overcome prior art, there is provided a kind of to be monitored for high-speed transfer with backlight Optical assembly, can solve at any time monitor Output optical power in the prior art, so that Real-time Feedback regulation laser threshold electricity The problem of stream.

What the present invention was realized in:

The present invention provides a kind of optical assembly monitored with backlight for high-speed transfer, including VCSEL lasers, incident collimation Lens, lens matrix, diaphragm, outgoing condenser lens and backlight monitoring lens;The incident collimation lens and the backlight are supervised Control lens are arranged at the same side of the lens matrix, and the outgoing condenser lens is arranged at the opposite side of the lens matrix; The lens matrix is provided with one first light beam steering face and one second light beam steering face, and the diaphragm is located at first light beam On turnover face, the film plating layer dimidiation part of the diaphragm, its top half is anti-reflection film, and the latter half is energy light splitting Film;It is incident on the diaphragm by the incident collimation lens from the light of the VCSEL laser emittings, a part of light Projected by the outgoing condenser lens by after the energy spectro-film reflection of the diaphragm, another part light is by the film The energy spectro-film of piece is refracted into diaphragm matrix, and the of the lens matrix is incident to after another surface total reflection of diaphragm On two light beam steering faces, and lens injection is monitored by the backlight after the second light beam steering face is totally reflected.

Further, the first light beam steering face is set with the second light beam steering face in 90 ° of angles.

Further, by the incident light of the incident collimation lens and the light for being incident to the outgoing condenser lens It is mutually perpendicular to.

Further, by the incident light of the incident collimation lens and the light for being incident to the backlight monitoring lens It is parallel to each other.

Further, it is incident to the film by the incident collimation lens from the light of the VCSEL laser emittings The energy spectro-film of piece, a part of light reflects by the energy spectro-film, and is directly penetrated by the outgoing condenser lens Go out;Another part light directly transmits the energy spectro-film, and is incident to second light beam steering by the anti-reflection film Face, lens injection is monitored after the second light beam steering face is reflected by the backlight.

Further, it is incident to the film by the incident collimation lens from the light of the VCSEL laser emittings The energy spectro-film of piece, a part of light reflexes to the second light beam steering face by the energy spectro-film, and by institute Projected by backlight monitoring lens after stating the reflection of the second light beam steering face;Another part light directly transmits the energy light splitting Film, and projected by the anti-reflection film, directly projected by the outgoing condenser lens.

Further, it is described to monitor suitable for single-channel data transfers or more logical for the optical assembly of high-speed transfer with backlight Channel array data transfer.

The invention has the advantages that:

It is incident on the diaphragm by the incident collimation lens from the light of the VCSEL laser emittings, one Light splitter is projected by after the energy spectro-film reflection of the diaphragm by the outgoing condenser lens, and another part light passes through The energy spectro-film of the diaphragm is refracted into diaphragm matrix, and the lens base is incident to after another surface total reflection of diaphragm On second light beam steering face of body, and lens injection is monitored by the backlight after the second light beam steering face is totally reflected, So as to realize that backlight is monitored.The optical assembly monitored for high-speed transfer with backlight sets by first light path turnover face There is energy spectro-film, not only solving can not at any time monitor Output optical power in the prior art, so that Real-time Feedback regulation laser The problem of device threshold current, and lens matrix structure is more simplified, it is convenient to mold and assemble.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the structural representation that the optical assembly for high-speed transfer is monitored with backlight provided in an embodiment of the present invention;

Fig. 2 is the knot of another embodiment that the optical assembly for high-speed transfer is monitored with backlight provided in an embodiment of the present invention Structure schematic diagram;

Fig. 3 is the structural representation of diaphragm provided in an embodiment of the present invention.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art obtained on the premise of creative work is not made it is all its Its embodiment, belongs to the scope of protection of the invention.

Such as Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of optical assembly monitored with backlight for high-speed transfer, including VCSEL lasers, incident collimation lens 1, lens matrix 2, diaphragm 3, outgoing condenser lens 4 and backlight monitoring lens 5.

Such as Fig. 1 and Fig. 3, the incident collimation lens 1 and backlight monitoring lens 5 are arranged at the lens matrix 2 The same side, the outgoing condenser lens 4 is arranged at the opposite side of the lens matrix 2.The lens matrix 2 is provided with one first The light beam steering face 7 of light beam steering face 6 and 1 second, the first light beam steering face 6 is in 90 ° with the second light beam steering face 7 Angle is set.The diaphragm 3 is located on the first light beam steering face 6, the film plating layer dimidiation part of the diaphragm 3, thereon Half portion is divided into anti-reflection film 32, and the latter half is energy spectro-film 31.The energy spectro-film 31 can realize light path light splitting;It is described Anti-reflection film 32 can reduce the veiling glare in energy loss and light path.

Such as Fig. 1, the diaphragm 3 is incident to by the incident collimation lens 1 from the light of the VCSEL laser emittings On, a part of light is projected after the energy spectro-film 31 of the diaphragm 3 reflects by the outgoing condenser lens 4, another Some light is refracted into diaphragm matrix by the energy spectro-film of the diaphragm 3, enters after another surface total reflection of diaphragm It is incident upon on the second light beam steering face 7 of the lens matrix 1, and by described after the second light beam steering face 7 is totally reflected Backlight monitoring lens 5 are projected.Light by the incident collimation lens 1 incidence be incident to the outgoing condenser lens 4 Light is mutually perpendicular to;By the light and the light phase for being incident to the backlight monitoring lens 5 of the incident collimation lens 1 incidence It is mutually parallel.

It is described to monitor the optical assembly for high-speed transfer by Optical Transmit Unit, backlight monitoring unit and light-receiving with backlight Unit is constituted, and the Optical Transmit Unit is included according to the VCSEL lasers of light path design, the incident collimation lens 1, described Lens matrix 2, the diaphragm 3 and the outgoing condenser lens 4;The backlight monitoring unit is included according to described in light path design VCSEL lasers, the incident collimation lens 1, the lens matrix 2, the diaphragm 3 and the backlight monitoring lens 5;It is described Light receiving unit includes the described incident collimation lens 1 according to light path design, the lens matrix 2 and the outgoing condenser lens 4.

Wherein, the Optical Transmit Unit and backlight monitoring unit realize the light splitting of light path, one using the same diaphragm 3 Part light energy enters Optical Transmit Unit, another part light energy entry of backlight monitoring unit.The film aspect of the diaphragm 3 with The first light beam steering face 6 of lens matrix 2 is bonded, and realizes light splitting function.

Such as Fig. 1, in this preferred embodiment, the light from the VCSEL laser emittings is saturating by the incident collimation Mirror 1 is incident to the energy spectro-film 31 of the diaphragm 3, and a part of light reflects by the energy spectro-film 31, and directly leads to The outgoing condenser lens 4 is crossed to project;Another part light directly transmits the energy spectro-film 31, and by the anti-reflection film 32 are incident to the second light beam steering face 7, and lens 5 are monitored by the backlight after the second light beam steering face 7 is reflected Project.

Such as Fig. 1 and Fig. 3, it is described to monitor the optical assembly for high-speed transfer suitable for single-channel data transfers with backlight, Suitable for multichannel array data transfer.And the optical assembly can be produced on same lens array.With four-way light transmitting-receiving group As a example by part, 850nm VCSEL lasers are set using four road array formats, and launch laser with identical spacing.Four road light Beam is four tunnels parallel collimated light at equal intervals by optical beam transformation after incident collimation lens 1.This four roads light beam is again by lens base During the adhesive surface of the first light beam steering face 6 of body 2 and the diaphragm 3, this four roads light be divided into per light all the way reflected light with Transmitted light two parts.Four tunnel reflected lights after 90 degree of light path turnovers by, by outgoing condenser lens 4, focusing on four route parallel beams It is four equidistant small luminous points, is finally received by multimode fibre and transmitted.Four tunnel transmitted lights are incided inside diaphragm 3, then are passed through Crossing the total reflection of the upper surface of diaphragm 3 makes light beam again pass by the adhesive surface of diaphragm 3 and the first light beam steering face 6 of lens matrix 2, so Four route parallel beams are again totally reflected light beam by the second light beam steering face 7 of lens matrix 2 afterwards, and by backlight Monitoring lens 5 make four beams monitoring collimated light beam focus on the PD arrays of four backlights reception.Receiving unit is parallel using four tunnels 850nm multimode fibres send light beam, and four road optical beam transformations are made for the equidistant collimated light beam in four tunnels by incident collimation lens 1, then By the light beam steering face of lens matrix 2 first, four beams is received light beam and be totally reflected, then made by the array of outgoing condenser lens 4 Four beams receive collimated light beam and focus on four reception PD arrays.

Such as Fig. 1 and 3, the adhesive surface film layer in the diaphragm 3 and the light beam steering face of lens matrix 2 first is in space surface position Put and be divided into two kinds of optical thin films, one kind is that light energy spectro-film 31 realizes light path light splitting, and the position of its energy spectro-film 31 exists The lower half of adhesive surface;Another kind is anti-reflection film 32, for reducing energy loss and light path in veiling glare, and anti-reflection film 32 In the first half of adhesive surface.The diaphragm 3 can be adjusted flexibly the energy ratio of reflection and transmission, any on transmitting terminal for meeting With the component of monitoring client energy ratio requirement.

As shown in Fig. 2 be another structure that the optical assembly for high-speed transfer is monitored with backlight, with the first knot Unlike structure,, by the reflected beam portion entry of backlight monitoring unit of diaphragm 3, transmitted light part enters Optical Transmit Unit for it.From The light of the VCSEL laser emittings is incident to the energy spectro-film 31 of the diaphragm 3 by the incident collimation lens 1, A part of light reflexes to the second light beam steering face 7 by the energy spectro-film 31, and is turned by second light beam Projected by backlight monitoring lens 5 after reflecting in folding face 7;Another part light directly transmits the energy spectro-film 31, and by The anti-reflection film 32 is projected, and is directly projected by the outgoing condenser lens 4.

It is described to monitor the optical assembly for high-speed transfer by being provided with energy point on first light path turnover face with backlight Light film, not only solving can not at any time monitor Output optical power in the prior art, so that Real-time Feedback regulation laser threshold electricity The problem of stream, and lens matrix structure is more simplified, it is convenient to mold and assemble.

Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (7)

1. a kind of optical assembly monitored with backlight for high-speed transfer, it is characterised in that including VCSEL lasers, incident collimation Lens, lens matrix, diaphragm, outgoing condenser lens and backlight monitoring lens;
The incident collimation lens and backlight monitoring lens are arranged at the same side of the lens matrix, and the outgoing is focused on Lens are arranged at the opposite side of the lens matrix;
The lens matrix is provided with one first light beam steering face and one second light beam steering face, and the diaphragm is located at described first On light beam steering face, the film plating layer dimidiation part of the diaphragm, its top half is anti-reflection film, and the latter half is energy point Light film;
It is incident on the diaphragm by the incident collimation lens from the light of the VCSEL laser emittings, a part of light Line is projected by after the energy spectro-film reflection of the diaphragm by the outgoing condenser lens, and another part light is by described The energy spectro-film of diaphragm is refracted into diaphragm matrix, and the lens matrix is incident to after another surface total reflection of diaphragm On second light beam steering face, and lens injection is monitored by the backlight after the second light beam steering face is totally reflected.
2. the optical assembly for high-speed transfer is monitored with backlight as claimed in claim 1, it is characterised in that:First light beam Turnover face is set with the second light beam steering face in 90 ° of angles.
3. the optical assembly for high-speed transfer is monitored with backlight as claimed in claim 1 or 2, it is characterised in that:By described The incident light of incident collimation lens is mutually perpendicular to the light for being incident to the outgoing condenser lens.
4. the optical assembly for high-speed transfer is monitored with backlight as claimed in claim 1 or 2, it is characterised in that:By described The incident light of incident collimation lens is parallel to each other with the light for being incident to the backlight monitoring lens.
5. the optical assembly for high-speed transfer is monitored with backlight as claimed in claim 1, it is characterised in that:From the VCSEL The light of laser emitting is incident to the energy spectro-film of the diaphragm by the incident collimation lens, and a part of light passes through The energy spectro-film reflection, and directly by outgoing condenser lens injection;Another part light directly transmits the energy Amount spectro-film, and the second light beam steering face is incident to by the anti-reflection film, reflected by the second light beam steering face Projected by backlight monitoring lens afterwards.
6. the optical assembly for high-speed transfer is monitored with backlight as claimed in claim 1, it is characterised in that:From the VCSEL The light of laser emitting is incident on the diaphragm by the incident collimation lens, and a part of light is by the diaphragm Energy spectro-film reflection after by the outgoing condenser lens injection, another part light by the diaphragm energy spectro-film Reflect and by anti-reflection film entrance diaphragm matrix, the second of the lens matrix is incident to after another surface total reflection of diaphragm On light beam steering face, and lens injection is monitored by the backlight after the second light beam steering face is totally reflected.
7. the optical assembly for high-speed transfer is monitored with backlight as claimed in claim 1, it is characterised in that:The band backlight prison The optical assembly controlled for high-speed transfer is applied to single-channel data transfers or multichannel array data transfer.
CN201410759532.3A 2014-12-12 2014-12-12 The optical assembly for high-speed transfer is monitored with backlight CN104577708B (en)

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CN104577708B true CN104577708B (en) 2017-06-30

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CN107566034A (en) * 2017-10-10 2018-01-09 昂纳信息技术(深圳)有限公司 A kind of monitoring system and monitoring method of SR4 optical modules transmission power
CN108873194A (en) * 2018-07-26 2018-11-23 武汉电信器件有限公司 A kind of optical assembly and its manufacturing method
WO2020019327A1 (en) * 2018-07-27 2020-01-30 华为技术有限公司 Optical time-domain reflectometer, and optical assembly having optical time-domain reflection function
CN108809408A (en) * 2018-08-15 2018-11-13 武汉华工正源光子技术有限公司 The optical transmission module and device of backlight monitoring function are realized with reflecting piece
CN110794529B (en) * 2020-01-06 2020-05-08 成都新易盛通信技术股份有限公司 Optical assembly and system thereof

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CN104166193A (en) * 2013-05-15 2014-11-26 恩普乐股份有限公司 Optical receptacle and optical module

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CN103576252A (en) * 2012-07-24 2014-02-12 鸿富锦精密工业(深圳)有限公司 Optical coupling lens and optical communication device
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