CN102621641A

CN102621641A - Optical fiber connector

Info

Publication number: CN102621641A
Application number: CN2011100296685A
Authority: CN
Inventors: 许嘉麟
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2011-01-27
Filing date: 2011-01-27
Publication date: 2012-08-01

Abstract

Disclosed is an optical fiber connector, comprising a supporting body and a body, wherein the supporting body is equipped with a photo diode and a light-emitting diode. The body includes a first lensed fiber, a second lensed fiber, and a reflective surface, wherein the central axis of the first lensed fiber is parallel to the central axis of the second lensed fiber. Optical signals transmitted by the first lensed fiber are received by the photo diode after a total reflection of the reflective surface. The photo diode is used for converting the optical signals transmitted by the first lensed fiber into electric signals. Optical signals representing the electric signals emitted by the light-emitting diode are incident to the reflective surface and totally reflected by the reflective surface, and then the totally reflected optical signals are coupled to the second lensed fiber and transmitted. The angle between the reflective surface and the axis of the first lensed fiber is 45 degree.

Description

The joints of optical fibre

Technical field

The present invention relates to a kind of joints of optical fibre.

Background technology

In the joints of optical fibre of advocating now (Light Peak), mechanism's part adopts the ejection formation manufacturing, has the blind hole of up-winding fiber on mechanism's part; The end of blind hole has and the integrated lens of mechanism's part, lens and fiber optics coupling, particularly; The light that light source sends incides on the lens after in air, propagating a segment distance, and the light of outgoing transmits in mechanism's part and gets into Optical Fiber Transmission then from lens, so; The joints of optical fibre need be packed optical fibre set in the blind hole into and make lens and optical fiber have enough normotopia degree; In addition, because light transmits in different medium, make optical loss bigger.

Summary of the invention

In view of this, be necessary to provide a kind of normotopia degree height and the low joints of optical fibre of optical loss.

A kind of joints of optical fibre, it comprises: supporting body, it is provided with photodiode and light emitting diode; And body; It has first lens fiber, second lens fiber and reflecting surface; The central axes of said first lens fiber and second lens fiber; The light signal of said first lens fiber transmission of first lens fiber, second lens fiber is received by said photodiode after said reflecting surface reflection; Said photodiode is used for converting the light signal of said first lens fiber transmission into electric signal, and said light emitting diode sends the light signal of represent electric signal and is incident to said reflecting surface and is coupled to said second lens fiber after the said reflecting surface reflection and transmit, and the angle of the central shaft of said reflecting surface and said first lens fiber is 45 to spend.

A kind of joints of optical fibre, it comprises: supporting body, it is provided with photodiode and light emitting diode; And body; It has first lens fiber, second lens fiber and groove; Has reflector element in the said groove; Said reflector element comprises first and second; The central shaft of said first vertical said first lens fiber, said second angle with first are 45 degree, the central axes of said first lens fiber and second lens fiber; The light signal of said first lens fiber transmission of first lens fiber, second lens fiber gets into said reflector element through said first; Light signal is received by said photodiode after said second total reflection, and said photodiode is used for converting the light signal of said first lens fiber transmission into electric signal, and said light emitting diode sends the light signal of representing electric signal and is incident to said reflector element and is coupled to said second lens fiber after said second total reflection and transmit.

Compared to prior art; The joints of optical fibre of present embodiment are into a single integrated structure with optical fiber and lens design; Thereby reduce the joints of optical fibre need optical fiber and lens normotopia in assembling process correction; The light of light that light source sends and lens fiber transmission directly gets into Optical Fiber Transmission through reflecting surface reflection back respectively and is received by photodiode, has reduced optical communication interface, makes optical loss less.

Description of drawings

Fig. 1 is the synoptic diagram that the present invention first implements the joints of optical fibre.

Fig. 2 is the exploded view of the second embodiment of the invention joints of optical fibre.

Fig. 3 is the exploded view of another angle of the second embodiment of the invention joints of optical fibre.

Fig. 4 is the sectional view of IV-IV line among Fig. 1.

Fig. 5 is the enlarged drawing of V among Fig. 4.

Fig. 6 is the schematic cross-section of the second embodiment of the invention joints of optical fibre.

Main element meets explanation

The joints of

optical fibre

10,20

Supporting

body

11,21

Light emitting diode 111

Photodiode 112,212

First location structure 116

Second location structure 117

Body

12,22

Main body 120

First lens fiber 121,221

Lens 1210

Second lens fiber 122

First through hole 123

Second through hole 124

Reflecting surface 125

The 3rd location structure 126

The 4th location structure 127

Groove 220

First 222

Second 223

Reflector element 224

Embodiment

To combine accompanying drawing that the present invention is done further explain below.

Please together consult Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the joints of optical fibre 10 that first embodiment of the invention provides comprise supporting body 11 and body 12, and body 12 is arranged on the supporting body 11.

Supporting body 11 can be circuit board (PCB), its be provided with light emitting diode (light-emitting diode, LED) 111, photodiode (photo diode, PD) 112, first location structure 116 and second location structure 117.

First location structure 116 and second location structure 117 can be pilot hole or reference column, and in the present embodiment, first location structure 116 and second location structure 117 are pilot hole.

Photodiode 112 is PN photodiode, PIN photodiode or avalanche photodide.

Body 12 is roughly square structure, and it is provided with first lens fiber 121, second lens fiber 122, reflecting surface 125, the 3rd location structure 126 and the 4th location structure 127.Having first through hole 123 and second through hole 124 on the body 12 is respectively applied for and accommodates the fixed first lens optical fiber 121 and second lens fiber 122.

First lens fiber 121 is identical with the structure of second lens fiber 122, and the end that the end of first lens fiber 121 has lens 1210, the second lens fibers 122 has lens 1210 equally.

Lens fiber is to adopt precision processing technology directly to make the various optical lenses with different performance at fiber end face (one or both ends).Lens 1210 can be the semicircle lens (taped hemispherical) of semicircle lens (hemispherical lens), conical lens (conical lens), Fresnel Lenses (Fresnel lens), microspheroidal lens (microsphere) or gradual shrinkage.

Match with first location structure 116 and second location structure 117, the 3rd location structure 126 and the 4th location structure 127 are reference column or pilot hole, and the 3rd location structure 126 and the 4th location structure 127 are reference column in the present embodiment.

Reflecting surface 125 is positioned at the end of first through hole 123 and second through hole 124, and the angle between the central shaft of itself and first through hole 123 and second through hole 124 is 45 degree.

First lens fiber 121 and second lens fiber 122 are used for transmitting optical signal, and wherein, first lens fiber 121 is used to export light signal, and second lens fiber 122 is used for input optical signal.

Be appreciated that the joints of optical fibre 10 can comprise the lens fiber of greater number according to actual needs, and be not limited to two lens fibers of present embodiment.

The 3rd location structure 126 stretches into first location structure 116, the 4th location structure 127 stretches in second location structure 117 and makes body 12 be positioned on the supporting body 11, the light signal that incides first lens fiber 121 and output, 122 inputs of second lens fiber thereby the light that makes light emitting diode 111 send is reflected after face 125 reflections through reflecting surface 125 reflection backs by photodiode 112 receptions and be converted into electric signal.

Particularly, the light signal of the representative electric signal that light emitting diode 111 sends is incident on the reflecting surface 125, and light signal is reflected and incides on the first lens lens 1210 after face 125 reflects, and after lens 1210 outgoing, directly gets into optical fiber 121 transmission; Outside light signal gets into the joints of optical fibre 10 through second lens fiber 122; Be incident on the reflecting surface 125 through lens 1210 outgoing then; Light is reflected and is received by photodiode 112 after face 125 reflects, and the light signal of different-energy makes photodiode 112 can export different electric currents.

Preferably, have the light signal that a reflectance coating increase is reflected on the reflecting surface 125, thereby reduce the loss of light signal.

First lens fiber 121 and second lens fiber 122 of the joints of optical fibre 10 are into a single integrated structure with optical fiber and lens design; Thereby reduce the joints of optical fibre 10 need optical fiber and lens normotopia in assembling process correction; The light that light source sends is directly received and switching electrical signals by photodiode after the reflecting surface reflection through the light signal that reflecting surface reflection back directly gets into the transmission of Optical Fiber Transmission and lens fiber; Reduce optical communication interface, made optical loss less.

See also Fig. 6, the joints of optical fibre 20 that second embodiment of the invention provides comprise supporting body 21 and body 22 equally, have two lens fibers (showing first lens fiber 221 among the figure) on the body 22.

Supporting body 21 has the structure identical with supporting body 11, promptly is provided with photodiode 212 and light emitting diode (figure does not show) on the supporting body 21 equally.

First lens fiber 221 is arranged on the body 22; And body 22 has a groove 220 at the lens end of lens fiber 221; Has a reflector element 224 in the groove 220; Reflector element 224 comprise one first 222 and one second 223, the second 223 and first 222 between angle be 45 the degree.Wherein, the central shaft of first 222 vertical first lens fiber 221, and and first lens fiber 221 between be air dielectric, also be air dielectric between second 223 and the body 22.

The light signal L of first lens fiber, 221 transmission incides second 223 then through first 222 entering reflector element 224, and emission is set at 212 receptions of photodiode on the supporting body 21 to light signal L taking place entirely on second 223.

Signal is reversible according to light path, and the light signal of the representative electric signal that light emitting diode sends incides lens fiber and transmits after second 223 reflection.

It is understandable that those skilled in the art also can do other variation etc. and be used for design of the present invention in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.These all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.

Claims

1. joints of optical fibre, it comprises:

Supporting body, it is provided with photodiode and light emitting diode; And

Body; It has first lens fiber, second lens fiber and reflecting surface; The central axes of said first lens fiber and second lens fiber; The light signal of said first lens fiber transmission of first lens fiber, second lens fiber is received by said photodiode after said reflecting surface reflection; Said photodiode is used for converting the light signal of said first lens fiber transmission into electric signal, and said light emitting diode sends the light signal of represent electric signal and is incident to said reflecting surface and is coupled to said second lens fiber after the said reflecting surface reflection and transmit, and the angle of the central shaft of said reflecting surface and said first lens fiber is 45 to spend.

2. the joints of optical fibre as claimed in claim 1 is characterized in that, said first lens fiber is identical with the structure of second lens fiber.

3. the joints of optical fibre as claimed in claim 2 is characterized in that, the lens of said first lens fiber are the semicircle lens of semicircle lens, conical lens, Fresnel Lenses, microspheroidal lens or gradual shrinkage.

4. the joints of optical fibre as claimed in claim 1 is characterized in that, have through hole on the said body and are used for holding said first lens fiber and second lens fiber.

5. the joints of optical fibre as claimed in claim 1; It is characterized in that; Has first location structure on the said supporting body; Has second location structure that matches with said first location structure on the said body, by said first location structure and said body of second location structure and said supporting body location.

6. the joints of optical fibre as claimed in claim 5 is characterized in that, said first location structure is a pilot hole, and said second location structure is a reference column.

7. the joints of optical fibre as claimed in claim 5 is characterized in that, said first location structure is a reference column, and said second location structure is a pilot hole.

8. like the arbitrary described joints of optical fibre of claim 1 to 7, it is characterized in that said photodiode is PN photodiode, PIN photodiode or avalanche photodide.

9. joints of optical fibre, it comprises:

Supporting body, it is provided with photodiode and light emitting diode; And

Body; It has first lens fiber, second lens fiber and groove; Has reflector element in the said groove; Said reflector element comprises first and second; The central shaft of said first vertical said first lens fiber, said second angle with first are 45 degree, the central axes of said first lens fiber and second lens fiber; The light signal of said first lens fiber transmission of first lens fiber, second lens fiber gets into said reflector element through said first; Light signal is received by said photodiode after said second total reflection, and said photodiode is used for converting the light signal of said first lens fiber transmission into electric signal, and said light emitting diode sends the light signal of representing electric signal and is incident to said reflector element and is coupled to said second lens fiber after said second total reflection and transmit.

10. the joints of optical fibre as claimed in claim 9 is characterized in that, have through hole on the said body and are used for holding said first lens fiber and second lens fiber.