CN211577484U - Optical fiber collimator for eliminating spherical aberration - Google Patents
Optical fiber collimator for eliminating spherical aberration Download PDFInfo
- Publication number
- CN211577484U CN211577484U CN201922380271.5U CN201922380271U CN211577484U CN 211577484 U CN211577484 U CN 211577484U CN 201922380271 U CN201922380271 U CN 201922380271U CN 211577484 U CN211577484 U CN 211577484U
- Authority
- CN
- China
- Prior art keywords
- lens
- optical fiber
- convex
- plano
- spherical aberration
- 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.)
- Active
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to an aplanatic optical fiber collimator, which is a collimator combined by an optical fiber, a plano-convex C lens and a biconvex C lens, wherein the optical fiber is directly connected with the plane of the plano-convex C lens in a melting way, and the C lenses are respectively plated with a film layer with a specific wavelength, a high damage threshold value and high anti-reflection.
Description
Technical Field
The invention relates to the field of laser devices, in particular to an optical fiber collimator for eliminating spherical aberration.
Background
In the related fields of optical communication and laser, a collimator is widely applied as a basic passive device, in some coupling systems, the collimator with low requirements can be directly coupled by using a collimator of a single C lens, but for some systems with higher requirements, higher requirements on collimated light spots and smaller requirements on spherical aberration, the spherical aberration needs to be corrected, so that the spherical aberration needs to be eliminated by adding the lens, and the common collimator of the single C lens cannot meet the requirement on spherical aberration.
Disclosure of Invention
In order to reduce spherical aberration, make laser beam focus better, the utility model provides an aplanatic optical fiber collimator, including optic fibre, plano-convex C lens, biconvex C lens, glass pipe, the plane of plano-convex C lens is not the coating film, directly is connected with optic fibre melting, and the convex surface plates the working wavelength antireflection film, and the working wavelength antireflection film is plated on biconvex C lens both sides, and plano-convex C lens and biconvex C lens assemble together in the glass pipe, make up into aplanatic lens.
Drawings
FIG. 1 is a schematic view of an optical fiber collimator with spherical aberration elimination
In the figure, 1 is a biconvex C lens, 2 is a plano-convex C lens, 3 is a glass tube, and 4 is an optical fiber.
Detailed Description
In the embodiment, as shown in fig. 1, a biconvex C lens 1, a plano-convex C lens 2, and an optical fiber 4 are mounted together in a glass tube 3 to form an aplanatic fiber collimator. The optical fiber 4 is directly connected with the plane of the plano-convex C lens 2 in a melting way to form a whole, the plano-convex C lens 2 is made of fused quartz, the plane is not coated with a film, and the other spherical surface is coated with an anti-reflection film with high damage of specific wavelength. Then the optical fiber collimator and the biconvex C lens 1 are both spherical surfaces, are plated with antireflection films with specific wavelength and high damage, and are made of optical glass and fused quartz and installed in a glass tube 3 together to form the optical fiber collimator. Biconvex C lens 1 is fixed in glass pipe one end, and optic fibre 4 inserts from the 3 other ends of glass pipe after with the butt fusion of planoconvex C lens 2, can finely tune the different working distances of interval adaptation between planoconvex C lens 2 and the biconvex C lens 1. Light from the light source enters the optical fiber collimator through the optical fiber 4, is emitted through the plano-convex C lens 2, is converged and deflected, passes through the biconvex C lens 1, is converged, and is deflected at a small angle through the two C lenses to correct spherical aberration. The light beams are symmetrical along the optical axis, and the light spots are circular light spots without eccentricity. The problem that the spherical aberration of the single C lens cannot be corrected is solved.
Claims (2)
1. An optical fiber collimator for eliminating spherical aberration is composed of optical fiber, plano-convex C lens, dual-convex C lens and glass tube, and features that the optical fiber is directly fusion-connected with the plane of plano-convex C lens, the other end of plano-convex C lens is spherical, and the dual-convex C lens is coated in the glass tube.
2. The aspherical optical fiber collimator as claimed in claim 1, wherein the plano-convex C lens is made of fused silica, the biconvex C lens is made of optical glass, fused silica, and the transparent end face is coated with a high anti-reflection film with a working wavelength.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922380271.5U CN211577484U (en) | 2019-12-26 | 2019-12-26 | Optical fiber collimator for eliminating spherical aberration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922380271.5U CN211577484U (en) | 2019-12-26 | 2019-12-26 | Optical fiber collimator for eliminating spherical aberration |
Publications (1)
Publication Number | Publication Date |
---|---|
CN211577484U true CN211577484U (en) | 2020-09-25 |
Family
ID=72551173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201922380271.5U Active CN211577484U (en) | 2019-12-26 | 2019-12-26 | Optical fiber collimator for eliminating spherical aberration |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN211577484U (en) |
-
2019
- 2019-12-26 CN CN201922380271.5U patent/CN211577484U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102436038B (en) | Optical path coupler, optical path coupling device and optical path coupling method | |
JP2004126586A (en) | Symmetric bi-aspheric lens for use in optical fiber collimator assembly | |
US20160124168A1 (en) | Pigtailed laser device based on spherical lens coupling | |
CN103454730A (en) | Optical fiber collimator | |
JP2004126588A (en) | Symmetric bi-aspheric lens for use in transmissive and reflective optical fiber component | |
KR20150023460A (en) | High power spatial filter | |
CN107544101A (en) | It is a kind of to be used for LD and the single non-spherical lens of fiber coupling | |
CN109459824B (en) | Two-stage space optical coupling device capable of improving single-mode optical fiber space optical coupling efficiency | |
CN111458814A (en) | Orthogonal coupling light path | |
CN111463656A (en) | Optical fiber coupling system | |
CN211577484U (en) | Optical fiber collimator for eliminating spherical aberration | |
CN209879066U (en) | Optical fiber coupling system | |
CN105393472A (en) | Method for extracting optical energy from an optical beam | |
CN112162368A (en) | Free-form surface reflective coupling lens | |
CN203561768U (en) | Optical collimator | |
CN105511098A (en) | Fiber laser integrated collimation optical device | |
CN212111889U (en) | Laser fiber coupling system | |
CN212341529U (en) | Laser fiber coupling light path structure | |
CN2754113Y (en) | Semiconductor laser optical beam shaping unit | |
CN212905744U (en) | Laser coupling to single mode fiber angle deviation adjusting module applied to automatic machine | |
CN212162326U (en) | Optical fiber coupling system | |
CN105593728A (en) | Furcating optical coupling devices and furcation systems incorporating the same | |
CN100490262C (en) | High power dual-cladding fiber laser end-pumped method and device | |
CN208000417U (en) | Collimator for 1.064 μm optical fiber laser | |
CN208888496U (en) | A kind of collimator using wedge-shaped compensating glass |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |