CN105974525A - Optical fiber collimator using cone-shaped lens - Google Patents
Optical fiber collimator using cone-shaped lens Download PDFInfo
- Publication number
- CN105974525A CN105974525A CN201610600920.6A CN201610600920A CN105974525A CN 105974525 A CN105974525 A CN 105974525A CN 201610600920 A CN201610600920 A CN 201610600920A CN 105974525 A CN105974525 A CN 105974525A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- collimator
- tapered lens
- cone
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
- G02B6/327—Optical coupling means having lens focusing means positioned between opposed fibre ends with angled interfaces to reduce reflections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides an optical fiber collimator using a cone-shaped lens. The optical fiber collimator is a collimator formed through cooperation of an optical fiber head and the cone-shaped lens. The end surface of the optical fiber head and the end surface of the cone-shaped lens are both plated with a specific-wavelength high-damage-threshold and high-anti-reflection film. The optical fiber collimator can reduce reverse spike, and solves the problem of eccentricity of emitting light spots.
Description
Technical field
The present invention relates to laser device field, particularly to a kind of optical fiber collimator using tapered lens.
Background technology
In optical communication and laser association area, passive device based on collimator, it is widely applied, in some high-power devices, to reverse spike, and emergent light spot concentricity all has higher requirements, lens and optical fiber head that general collimator uses have the band angle of wedge, emergent light can be caused eccentric, and light spot shape is round, impacts final using effect.
Although additionally lens have the band angle of wedge, certain effect is had to reducing reverse spike, but one air flat board of angle of wedge face formation that lens wedge surface is parallel with optical fiber head wedge surface two, benefit is there is no to eliminating retroreflection, can repeatedly launch between two angle of wedge faces on the contrary, the Expected Results of reverse spike can not be reduced.
Summary of the invention
In order to reduce reverse spike, and solving emergent light spot eccentricity issues, the invention provides a kind of optical fiber collimator using tapered lens, including tapered lens, glass tubing, coreless fiber, capillary tube, optical fiber, described tapered lens has conical end face.
Accompanying drawing explanation
Fig. 1 is to use tapered lens collimator structure schematic diagram
1 tapered lens in figure, 2 glass tubings, 3 coreless fiber, 4 capillary tubies, 5 optical fiber.
Detailed description of the invention
Embodiment is as it is shown in figure 1, tapered lens 1, coreless fiber 3, capillary tube 4, optical fiber 5 are arranged in glass tubing 2 composition optical fiber collimator.After optical fiber 5 connects coreless fiber 3, insert capillary tube 4 and be combined into optical fiber head together, then be installed along with in glass tubing 2 with tapered lens 1, constitute optical fiber collimator.Light source light out enters optical fiber collimator through optical fiber 5, coreless fiber 3 has amplification hot spot effect, spot size is relevant with the length of coreless fiber and numerical aperture, adjust tapered lens 1 and optical fiber head spacing, the spot size entering tapered lens 1 can be changed, tapered lens end face plating high antireflection film, angle of taper and length may determine that the operating distance of optical fiber collimator, optical fiber head and tapered lens end face are plated with high damage threshold film layer, additionally tapered end face and optical fiber head end face non-parallel face, also contribute to reduce reverse spike, the lens arrangement of cone makes emergent light spot not have eccentric phenomena.
Claims (3)
1. use a collimator for tapered lens, including tapered lens, coreless fiber, capillary tube, optical fiber, glass tubing, it is characterised in that collimator uses tapered lens.
Use tapered lens collimator the most according to claim 1, it is characterised in that described tapered lens can be optical glass, fused quartz, NSF11, the high antireflection film of logical light end face plating specific wavelength.
Tapered lens the most according to claim 2 a, it is characterised in that end face is the cone shape having special angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600920.6A CN105974525A (en) | 2016-07-28 | 2016-07-28 | Optical fiber collimator using cone-shaped lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600920.6A CN105974525A (en) | 2016-07-28 | 2016-07-28 | Optical fiber collimator using cone-shaped lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105974525A true CN105974525A (en) | 2016-09-28 |
Family
ID=56951043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610600920.6A Pending CN105974525A (en) | 2016-07-28 | 2016-07-28 | Optical fiber collimator using cone-shaped lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105974525A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569168Y (en) * | 2002-09-06 | 2003-08-27 | 一品光学工业股份有限公司 | Improved optical fibre collimator |
| CN1781041A (en) * | 2002-12-31 | 2006-05-31 | 康宁股份有限公司 | Small mode-field fiber lens and manufacture thereof |
| CN101666890A (en) * | 2008-09-04 | 2010-03-10 | 中国科学院西安光学精密机械研究所 | High-power optical fiber collimator and manufacturing method thereof |
| CN204347295U (en) * | 2014-12-01 | 2015-05-20 | 福建福晶科技股份有限公司 | A kind of optical fiber collimator of blind-mate |
-
2016
- 2016-07-28 CN CN201610600920.6A patent/CN105974525A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569168Y (en) * | 2002-09-06 | 2003-08-27 | 一品光学工业股份有限公司 | Improved optical fibre collimator |
| CN1781041A (en) * | 2002-12-31 | 2006-05-31 | 康宁股份有限公司 | Small mode-field fiber lens and manufacture thereof |
| CN101666890A (en) * | 2008-09-04 | 2010-03-10 | 中国科学院西安光学精密机械研究所 | High-power optical fiber collimator and manufacturing method thereof |
| CN204347295U (en) * | 2014-12-01 | 2015-05-20 | 福建福晶科技股份有限公司 | A kind of optical fiber collimator of blind-mate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |