CN208872911U

CN208872911U - Short-wave band active optics component based on vertical emission lasers and multimode fibre

Info

Publication number: CN208872911U
Application number: CN201821114685.2U
Authority: CN
Inventors: 于光龙; 黄宏; 汪子航
Original assignee: Photop Technologies Inc
Current assignee: Photop Technologies Inc
Priority date: 2018-07-14
Filing date: 2018-07-14
Publication date: 2019-05-17
Anticipated expiration: 2028-07-14

Abstract

The utility model discloses the short-wave band active optics component based on vertical emission lasers and multimode fibre, in the component: multiple VCSEL are configured for generating the optical signal of multiple and different wavelength；Multiple photodiodes (PD) are configured for receiving the optical signal of VCSEL transmitting；Two focusing lens arrays or lens array set of pieces are configured for the optical signal collimation of transmitting terminal (end Tx) and receiving end (end Rx) and focus；Two Z-block type prisms are configured for light combination (MUX) function at the end optical module Tx and light splitting (DEMUX) function at the end Rx；A piece MMF is configured for the optical signal that transmission VCSEL is generated；The advantages that two condenser lenses are configured for collimation and the focusing of the both ends MMF optical signal, and the implementation structure of the utility model has size small, and transmission rate is high, at low cost, and transmission range is long, and length is adjustable, commercial prospect is wide.

Description

Short-wave band active optics component based on vertical emission lasers and multimode fibre

Technical field

The utility model relates to communidcation optics and field of data transmission, more particularly, to based on vertical emission lasers and more The short-wave band active optics component of mode fiber can be used in nearly intermediate range high-definition multimedia interface (HDMI) device realizing Shortwave wavelength-division multiplex (SWDM) function.

Background technique

High-definition multimedia interface (HDMI) technology is the quick transmission technology of data of extensive utilization in optic communication.At present The transmission range of HDMI device is shorter, and transmission rate is smaller, and cannot arbitrarily adjust HDMI device according to actual installation demand Length has not been able to satisfy the requirement of present big data (>=4 K) transmission gradually.

This patent is based on short wavelength VCSEL laser signal light source and optical fiber transmission technique, derives a kind of New Active light Component is learned, which may be implemented the data-signal high-speed transfer of long range and can arbitrarily adjust number according to actual installation demand According to line length.

Summary of the invention

The case where for the prior art, the purpose of this utility model is to provide it is a kind of it is at low cost, size is small, transmission rate Do and can realize the short-wave band based on vertical emission lasers and multimode fibre of the SWDM function in nearly intermediate range HDMI device Active optics component.

In order to realize above-mentioned technical purpose, the technical solution adopted in the utility model are as follows:

A kind of short-wave band active optics component based on vertical emission lasers and multimode fibre comprising transmitting terminal, Receiving end and a root multimode fiber；

The transmitting terminal includes the multiple VCSEL being set in sequence, the first focusing lens array, the first Z-block type rib Mirror and the first condenser lens, the first Z-block type prism have multiple planes of incidence and an exit end, and described first focuses Lens are opposite with the exit end of the first Z-block type prism；

The receiving end includes the multiple photodiodes, the second focusing lens array, the 2nd Z-block being set in sequence Type prism and the second condenser lens, the 2nd Z-block type prism have multiple exit facets and an incidence end, and described the Two condenser lenses are opposite with the incidence end of the 2nd Z-block type prism；

Wherein one end of one root multimode fiber is opposite with the first condenser lens, the other end and the second condenser lens phase It is right；

Wherein,

The multiple VCSEL is configured for generating the optical signal of multiple and different wavelength；

The multiple photodiode (PD) is configured for receiving the optical signal of VCSEL transmitting；

First focusing lens array and the second focusing lens array are configured for transmitting terminal (end Tx) and receiving end The optical signal at (end Rx) is collimated and is focused；

The first Z-block type prism and the 2nd Z-block type prism is configured for optical module transmitting terminal (Tx End) light combination (MUX) function and receiving end (end Rx) light splitting (DEMUX) function；

The multimode fibre (MMF) is configured for the optical signal that transmission VCSEL is generated.

In addition, output end and input terminal can also be respectively packaged by a shell.

After laser signal is injected the first focusing lens array by multiple VCSEL of transmitting terminal, by the first condenser lens battle array Optical signal is focused and corresponds to the multiple planes of incidence for injecting the first Z-block type prism by column, then by the first Z-block type prism Exit end the optical signal received is projected to the first condenser lens, make the first condenser lens that optical signal is inputted multimode fibre One end, optical signal is delivered to its other end by multimode fibre and is projected to the second condenser lens, the second condenser lens again will Optical signal injects the incidence end of the 2nd Z-block type prism, then by the 2nd Z-block type prism by signal light from its multiple outgoing Face correspondence is injected into the second focusing lens array, enables the second focusing lens array that optical signal is focused on corresponding thereto multiple On photodiode.

Further, multiple photodiodes of the receiving end be set side by side and one end be additionally provided with for send feedback The VCSEL of signal, the condenser lens of second focusing lens array and the photodiode of receiving end and VCSEL mono- are a pair of It answers, the photodiode and VCSEL of multiple exit facets and receiving end that the 2nd Z-block type prism has correspond； Multiple VCSEL of the transmitting terminal are to be set side by side and one end is additionally provided with photodiode for receiving feedback signal, institute It states the condenser lens of the first focusing lens array and the VCSEL at transmitting terminal end and photodiode corresponds, the first Z- The VCSEL and photodiode of multiple planes of incidence and transmitting terminal that block type prism has are corresponded.

Preferably, the transmitting terminal has 3~14 VCSEL and at least one photodiode；The receiving end With 3~14 light emitting diodes and at least one VCSEL.

Preferably, between the receiving end or the adjacent VCSEL of transmitting terminal or between adjacent photodiode or VCSEL with Arrangement spacing between photodiode is 0.25~1 mm.

Preferably, the first focusing lens array of the transmitting terminal and the second focusing lens array of receiving end are spherical surface Lens or non-spherical lens.

Preferably, the thickness of the 2nd Z-block type prism of the first Z-block type prism and receiving end of the transmitting terminal It is 0.2~3 mm, the receiving end with the end of multimode fibre, the transmitting terminal of VCSEL or PD is in 6 °~45 ° of angle tilt Setting.

Preferably, the multimode fibre is transparent optical fibers, and the core diameter size of its fibre core is not less than 0.03 mm.

Preferably, first condenser lens and the second condenser lens are that injection molding, molding or photoetching are integrally formed Spherical lens or non-spherical lens.

A kind of application of short-wave band active optics component based on vertical emission lasers and multimode fibre as above, will It is used in high-definition multimedia interface device.

A kind of short-wave band active optics component comprising above-mentioned short based on vertical emission lasers and multimode fibre Wave wave band active optics component, operation wavelength are 600~1000 nm, are divided into 20~100 nm between wavelength channel.

Using above-mentioned technical solution, the utility model has the beneficial effect that the utility model is short using multichannel Wave wave band of laser and single multimode fiber carry out data transmission, and have size small, and transmission rate is high, and at low cost, transmission range is long, The advantages that length is adjustable, commercial prospect are wide.

Detailed description of the invention

The utility model is further elaborated with reference to the accompanying drawings and detailed description:

Fig. 1 is the brief implementation structural schematic diagram of the utility model embodiment 1；

Fig. 2 is the brief configuration schematic diagram of the transmitting terminal of the utility model embodiment 1；

Fig. 3 is the brief configuration schematic diagram of the receiving end of the utility model embodiment 1；

Fig. 4 is that the transmitting terminal of the utility model embodiment 1 and the brief of the Z-block type prism cementing part of receiving end are shown Meaning.

Specific embodiment

Wherein,

Embodiment 1

As shown in Figure 1, the utility model includes transmitting terminal 1, receiving end 2 and a root multimode fiber 3；

As shown in Fig. 2, it illustrates the brief implementation of the transmitting terminal of 1 structure of the utility model embodiment (TX end module) knots Structure is 6 channel Tx end modules comprising 5 VCSEL being set in sequence 11,1 photodiodes 15, the first condenser lenses Array 12, the first Z-block type prism 13 and the first condenser lens 14, the first Z-block type prism 13 have 6 incidences Face and an exit end, first condenser lens 14 is opposite with the exit end of the first Z-block type prism 13, multimode fibre 3 Wherein one end it is opposite with the first condenser lens 14；1 photodiode 15 and 5 VSCSLE 11 is set side by side, the One Z-block type prism 13 by the plane of incidence corresponding part of its exit end to its other end be sequentially block1, block2, Block3, block4, block5 and block6, the block6 sequentially with 15 phase of the first condenser lens 14 and photodiode It is right.

Its specific workflow are as follows: laser that the VCSEL 11 in 5 channels is issued (730 ± 10 nm, 760 ± 10 nm, 790 ± 10 nm, 825 ± 10 nm, 850 ± 10 nm) increase after the first focusing lens array 12 collimation from left side broadband Permeable membrane enters the first Z-block type prism 13, wherein laser gets to block5 at first, then passes through block4 to block1 Higher order reflection is finally emitted from the anti-reflection film surface of block1, is coupled into multimode fibre 3 through the first condenser lens 14.With such It pushes away, by the laser of block4~block1, multimode fibre 3 is coupled by the first condenser lens 14 one by one, realizes MUX function Energy.The feedback laser signal (730 ± 10 nm) being emitted from multimode fibre 3(MMF) (i.e. exit end) passes through the first condenser lens Block1 is got to after collimation, block2 is entered after reflection, and block6 is then entered after block2-block5 higher order reflection, Enter the first focusing lens array 12 after being finally emitted by block6, finally focuses on PD6, be collected feedback signal.

As shown in figure 3, it illustrates the brief implementation of the receiving terminal of 1 structure of the utility model embodiment (RX end module) knots Structure, it is 6 channel Rx end modules that corresponding diagram 2, which implements structure, comprising 1 VCSEL being set in sequence, 25,5 photodiodes 21(, that is, PD), the second focusing lens array 22, the 2nd Z-block type prism 23 and the second condenser lens 24, the 2nd Z- Block type prism 23 has 6 exit facets and an incidence end, second condenser lens 24 and the 2nd Z-block type prism 23 incidence end is opposite；The other end of multimode fibre 3 and the second condenser lens 24 are opposite；The photo-diode light 21 and 1 VSCSLE 25 is set side by side, the 2nd Z-block type prism 23 by its incidence end to its other end exit facet corresponding part sequentially For block1 ', block2 ', block3 ', block4 ', block5 ' and block6 ', the block6 ' sequentially gathers with second Focus lens 14 and VCSEL 25 are opposite.

Its specific workflow are as follows: multimode fibre 3(, that is, MMF) outgoing 5 wave bands laser signal (730 ± 10 nm, 750 ± 10 nm, 770 ± 10 nm, 790 ± 10 nm, 810 ± 10 nm) it is got to after the second condenser lens 24 collimation Block1 ' enters block2 ' after reflection, then enter the second focusing lens array after block2 '~block5 ' outgoing 22, finally focus on i.e. corresponding 5 photodiodes 21 of PD1~PD5() on, the feedback laser signal of the sending of VCSEL 25 (730 ± 10 nm) enters Z-block type prism 23 from broadband anti-reflection film after the first focusing lens array 22 collimation, Laser first gets to block5 ', using block4 '~block1 ' higher order reflection, finally from the anti-reflection film surface of block1 ' (be into Penetrate end) outgoing, multimode fibre 3 is coupled into through the focusing of the second condenser lens 24.

In the present embodiment, the production method of the first Z-block prism or the 2nd Z-block prism briefly includes walking as follows It is rapid:

1, design & processes prism: the ruler of demand (including number of channels, interchannel away from) the design prism according to different channels It is very little, thickness, in such a way that optics cold working is by body, the depth of parallelism of strict control prism, thickness, angle.Finally carry out subregion Domain plated film (broadband anti-reflection film+broadband high-reflection film).

2, design & processes optical filter: optical filter is the core component being divided, using coating designs software, according to not With the Demand Design optical filter in channel, designing points are the flat of plated film curve, the drift of central wavelength.In processing, filter Piece usually carries out plated film with a depth of parallelism and the good substrate of face shape (Wafer), then cuts, and detection is selected, spare.

3, it assembles sub-assembly: above-mentioned prism being bonded with each optical filter (filter), obtains structure as shown in Figure 4, Control glue-line consistency is paid attention to during fitting, while avoiding bubble, the bad phenomenons such as dislocation.

The above is the embodiments of the present invention, for the ordinary skill in the art, practical according to this Novel introduction is descended to the mortal world in the situation for not departing from the principles of the present invention and spirit according to present utility model application the scope of the patents institute Equivalent change, modification, the replacement and variant made, should all belong to the covering scope of the utility model.

Claims

1. a kind of short-wave band active optics component based on vertical emission lasers and multimode fibre, it is characterised in that: it is wrapped Include transmitting terminal, receiving end and a root multimode fiber；

The transmitting terminal include the multiple VCSEL being set in sequence, the first focusing lens array, the first Z-block type prism and First condenser lens, the first Z-block type prism have multiple planes of incidence and an exit end, first condenser lens It is opposite with the exit end of the first Z-block type prism；

The receiving end includes the multiple photodiodes being set in sequence, the second focusing lens array, the 2nd Z-block type rib Mirror and the second condenser lens, the 2nd Z-block type prism have multiple exit facets and an incidence end, and described second is poly- Focus lens are opposite with the incidence end of the 2nd Z-block type prism；

Wherein one end of one root multimode fiber is opposite with the first condenser lens, and the other end is opposite with the second condenser lens；

It, will by the first focusing lens array after laser signal is injected the first focusing lens array by multiple VCSEL of transmitting terminal Optical signal focuses and corresponds to the multiple planes of incidence for injecting the first Z-block type prism, then going out by the first Z-block type prism It penetrates end to project the optical signal received to the first condenser lens, makes the first condenser lens by the one of optical signal input multimode fibre Optical signal is delivered to its other end by multimode fibre and projected to the second condenser lens by end, and the second condenser lens again believes light Number the incidence end of the 2nd Z-block type prism is injected, then is injected signal light from its multiple exit facet is corresponding by the 2nd Z-block Into the second focusing lens array, enable the second focusing lens array that optical signal is focused on to multiple photodiodes corresponding thereto On.

2. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 1 Part, it is characterised in that: multiple photodiodes of the receiving end be set side by side and one end be additionally provided with for send feedback The VCSEL of signal, the condenser lens of second focusing lens array and the photodiode of receiving end and VCSEL mono- are a pair of It answers, the photodiode and VCSEL of multiple exit facets and receiving end that the 2nd Z-block type prism has correspond； Multiple VCSEL of the transmitting terminal are to be set side by side and one end is additionally provided with photodiode for receiving feedback signal, institute It states the condenser lens of the first focusing lens array and the VCSEL at transmitting terminal end and photodiode corresponds, the first Z- The VCSEL and photodiode of multiple planes of incidence and transmitting terminal that block type prism has are corresponded.

3. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 2 Part, it is characterised in that: the transmitting terminal has 3~14 VCSEL and at least one photodiode；The receiving end tool There are 3~14 light emitting diodes and at least one VCSEL.

4. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 2 Part, it is characterised in that: between the receiving end or the adjacent VCSEL of transmitting terminal or between adjacent photodiode or VCSEL with Arrangement spacing between photodiode is 0.25~1 mm.

5. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 2 Part, it is characterised in that: the first focusing lens array of the transmitting terminal and the second focusing lens array of receiving end are spherical surface Lens or non-spherical lens.

6. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 2 Part, it is characterised in that: the thickness of the 2nd Z-block type prism of the first Z-block type prism and receiving end of the transmitting terminal It is 0.2~3 mm, the receiving end with the end of multimode fibre, the transmitting terminal of VCSEL or PD is in 6 °~45 ° of angle tilt Setting.

7. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 2 Part, it is characterised in that: the multimode fibre is transparent optical fibers, and the core diameter size of its fibre core is not less than 0.03 mm.

8. a kind of short-wave band active optics group based on vertical emission lasers and multimode fibre according to claim 2 Part, it is characterised in that: first condenser lens and the second condenser lens is the integrally formed ball of injection molding, molding or photoetching Face lens or non-spherical lens.