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首页 Fiber Accessories Fiber & patch cords Fiber optic customization Lens fiber (flat/inclined/conical/wedge-shaped/spherical lens) Single-mode wedge lens fiber (including Angle 75 degrees R Angle 5um mirror ridge chamfer 25um)

    • Single-mode wedge lens fiber (including Angle 75 degrees R Angle 5um mirror ridge chamfer 25um)

    Lens fiber, also known as fiber lens or fiber microlens, is a type of product that is processed into a fiber end face with lens function. The main functions of lens fiber are to change the size and shape of the fiber mode field to improve the system coupling efficiency, change the optical transmission path, reduce refracted light, and change the tip shape to adapt to imaging and sensing in different environments. It has a wide range of applications in many fields. Idealphotonics can customize multiple types of optical fibers according to the different requirements of lens fibers in different fields and customize the surface metallization of optical fibers according to customer requirements. Compared with products on the market, Idealphotonics lens fiber has the advantages of smaller cone angle error and smaller eccentricity. At the same time, all lens fibers can be metallized + tube shell gold tin packaging according to customer requirements, as follows

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    主要参数
  • 核心参数

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    • Fiber Performance Comparison:

    Parameters

    Our Products

    Products on the market

    Note

    Cone angle error

    ±2.5°

    ±5°

    Cone angle error mainly refers to the cone angle of the microlens fiber.

    Single-mode: The higher the precision, the smaller the curvature tolerance and the higher the consistency. Multi-mode fiber: The higher the precision, the better the coupling efficiency consistency.

    Angle error

    ±2.5°

    ±5°

    Angle error mainly refers to the angle of the wedge-shaped or other inclined lens fiber. The higher the accuracy, the higher the yield of the processed curvature. For multimode optical fiber, the higher the taper accuracy, the better the coupling efficiency consistency.

    Curvature error

    ±1μm

    ±1μm

    The higher the curvature accuracy, the higher the coupling efficiency.

    Eccentricity

    ±1μm

    ±1.5μm

    The smaller the eccentricity, the smaller the angle between the optical axis of the lens fiber and the axis of the fiber cladding, which is more conducive to coupling debugging and improves production efficiency.

     


    1. Plane/bevel lens fiber (planar/single bevel/double bevel):

    Features:

    Grind a bevel with a certain angle at the front end of the optical fiber as required; metallize the optical fiber according to customer requirements.

     

    Application areas:

    Fiber laser, fiber network, traditional optics, fiber sensing, etc.

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    8 degree bevel

    Large angle bevel

     

    Plane/bevel lens fiber parameter table:

    Parameter

    Unit

    Value

    Typ

    Tolerance

    Bevel Angle

    °

    90 (flat)

    90 (flat)

    +1

    4~15 (Incline)

    8 (Incline)

    Stripping length

    mm

    10,Customized

    10

    +0.5

    Fiber type

    -

    SM, MM, PM,Customized Fiber

    N/A

    N/A

    Cladding diameter

    μm

    80~600

    80, 125, 220

    N/A

    Coating diameter

    μm

    165~900

    165, 250, 320

    N/A

    Connector (optional)

    -

    FC/PC, FC/APC,Customized

    N/A

    N/A

    AR coating (optional)

    -

    R<0.2%@Specify band

    R<0. 2%

    N/A

    Protective sleeve (optional)

    -

    900 μmVarious color tube

    900μmWhite tube

    N/A

    Connector slow axis position (only for polarization-maintaining fiber)

    -

    Same as KEY or customized

    0°, 90°

    ±5°

    Lens slow axis position (only for polarization-maintaining fiber)

    -

    Mirror ridge direction or perpendicular to the mirror ridge

    N/A

    ±5°

     


    2. Conical lens fiber:

    Features:

    The front end of the optical fiber is ground into a cone with a certain angle as required, and the spherical surface with a certain radius of curvature is ground into a spherical surface at the front end of the cone as required; the optical fiber is metallized according to customer requirements.

     

    Application areas:

    Semiconductor laser coupling; Medical laser microsurgery and micro-illumination.

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    Conical lens fiber parameter :

    Parameters

    Unit

    Value

    Typ

    Tolerance

    Lens angle

    °

    70~165

    75, 90, 100

    +2.5

    Lens R angle

    μm

    3~50

    5~12

    +1

    Stripping length

    mm

    10, Customized

    10

    +0.5

    Fiber type

    -

    SM, MM, PM,Customized Fiber

    N/A

    N/A

    Cladding diameter

    μm

    80~600

    80, 125, 220

    N/A

    Coating diameter

    μm

    165~900

    165, 250, 320

    N/A

    Connector (optional)

    -

    FC/PC; FC/APC; Customized

    N/A

    N/A

    AR coating (optional)

    -

    R<0.2%@Specify band

    R<0. 2%

    N/A

    Protective sleeve (optional)

    -

    900 μ mVarious color tube

    900μmWhite tube

    N/A

    Connector slow axis position (only for polarization-maintaining fiber)

    -

    Same as KEY or customized

    0, 90

    +5°

     

     

    3. Wedge-shaped lens fiber:

    Features:

    ·The front end of the optical fiber is ground into a double bevel with a certain angle as required, and the front end of the double bevel is ground into a cylindrical surface with a certain curvature radius as required;

    ·The light beam emitted by the optical fiber is shaped into an ellipse, or the receiving spot of the optical fiber is changed from a circle to an ellipse; the optical fiber is metallized according to customer requirements.

     

    Application areas:

    ·Semiconductor laser coupling, optical chip coupling, scientific research, etc.

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    Wedge lens fiber parameter table:

    Parameters

    Unit

    Value

    Typ

    Tolerance

    Lens angle

    °

    70~165

    75, 90, 100

    士2.5

    Lens R angle

    μm

    3~50

    5~15

    ±1

    Mirror ridge chamfer

    μm

    25*2

    25

    ±10

    Fiber stripping length

    mm

    10,Customized

    10

    ±0.5

    Fiber type

    -

    SM, MM, PM,Customized Fiber

    N/A

    N/A

    Cladding diameter

    μm

    80~600

    80, 125, 220

    N/A

    Coating diameter

    μm

    165~900

    165, 250, 320

    N/A

    Connector (optional)

    -

    FC/PC, FC/APC,Customized

    N/A

    N/A

    AR coating (optional)

    -

    R<0.2%@Specify band

    R<0. 2%

    N/A

    Protective sleeve (optional)

    -

    900 μmVarious color tube

    900μmWhite tube

    N/A

    Connector slow axis position (only for polarization-maintaining fiber)

    -

    Same as KEY or customized

    0°, 90°

    ±5°

    Lens slow axis position (only for polarization-maintaining fiber)

    -

    Mirror ridge direction or perpendicular to the mirror ridge

    N/A

    N/A

     


    4. Ball lens fiber:

    Features:

    · Small size, short optical path, light weight, easy to mass produce and package;

    · Simple coupling process, good repeatability, and high coupling efficiency.

     

    Application areas:

    · Medical endoscopes, semiconductor laser coupling, ultra-micro device packaging, photoelectric conversion devices, optical sensors, optical test platforms, CMM probes (widely used in medicine, military, public security, intelligence, integrated optics, optical communications, and optical computers).

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    Ball lens fiber parameter table:

    Parameters

    Unit

    Value

    Typ

    Tolerance

    Nominal beam waist diameter

    μm

    10~100 (+5um)

    10, 50, 100

    士5

    Working distance

    mm

    0. 2 (=20 u m)

    0.2, 0.5, 3, 7

    士20

    Ball lens diameter

    μm

    120~300 (+10 u m)

    120 ,  165, 250,300

    士10

    Fiber type

    -

    SM

    NA

    NA

    Coating diameter

    μm

    250~400

    250, 400

    NA

    Cladding diameter

    μm

    125~ 250

    124, 250

    NA

    Stripping length

    mm

    5士1,Customizable

    5

    士1

     

     

    5. Beveled ball lens optical fiber:

    Features:

    · Small size, short optical path, light weight, easy to mass produce and package.

     

    Application areas:

    · Medical endoscopes, optical coupling, photoelectric conversion devices, PLC, OCT, optical sensing, optical lighting.

     

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    Beveled ball lens fiber parameter table:

    Parameters

    Unit

    Value

    Typ

    Tolerance

    Ball lens diameter

    μm

    120~ 300

    160, 250, 300

    士10

    Grinding angle

    °

    39

    39

    士1

    S1 surface finish

    -

    10~20

    10~5

    NA

    (U.S. military standard: MIL-PRF-13830)

    -

    ≤h /5 @632. 8nm

    NA

    NA

    S1 surface type

    μm

    +10

    +5

    NA

    Grinding accuracy (distance from the center line of the ball)

    -

    SM

    NA

    NA

    Fiber type

    mm

    5士1,Customizable

    5

    士1

    Stripping length

    μm

    250~400

    250, 400

    NA

    Coating diameter

    μm

    125- ~ 250

    124, 250

    NA


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