C-lens Coupling Lens

3V TECHNOLOGY is a professional manufacturer with 18years experiences in producing optic lenses.Grin Lens(also named as Gradient Index Lens),C-lens(also named as Collimating Lens),imaging lens,coupling lens,partial wave lens,in addition,we can design and develop special lenses according to clients'requirements.Dimension,pitch,optical power,working wavelength,working distance can be specified.

What is Fiber Collimator?

Fiber collimator is a passive device. It is a module that combines a fiber and a lens, as well as has a function to produce parallel beams. It is usually made of a curved mirror or lens with the light source placed at its focus, which is used to make divergent light into a parallel beam or coupler the parallel beam into the fiber. Fiber collimator is usually available with different wavelengths (850 nm, 980 nm, 1060 nm, 1310 nm, 1550 nm), which could be adjustable in practice.

Collimating lens is the G-lens used in the fiber collimator.Fiber collimators are devices for collimating the light coming from a fiber, or for launching collimated light into the fiber.

-Material:special fused silica

-Thermal expansion coefficient:10 x 10-6/℃

-Length:customize(+0/-0.02mm)

-Pitch:0.23P,0.248P or customize

-Outer Diameter:1.8mm or customize(+0.005/-0.010mm)

-Angle:0/2/4/6/8/12 degree or customize(± 0.5°)

-AR Coated(R＜0.25%) or uncoated

-Insertion Loss(coated)≤  0.15dB

-Return Loss(coated)≥  60dB

-Wavelength:850nm,980nm,1060nm,1310nm,1550nm or customize

-We can supply to couple fiber with the lens too.

Collimating G-lens：

It is mainly applid to the connection of divergent light beams, specially,be used in passive optical devices widely,like fiber collimators, fiber couplers, optical switches, and optical isolators

Typical Features:

Small size, easy to assemble

Diameter: 0.5mm, 1.0mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm or customize(tolerence±0.005mm)

Pitch: 0.23P, 0.248P or customize(Length±0.02mm)

Angles: 2°, 6°, 8°, 10°, 12° or customize(±0.5°)

Coating Wavelength: 400nm-700nm, 800nm-1100nm, 1250nm-1650nm, 980nm/1550nm, 850nm/1310nm or customize

Coating: AR coating/Hi-reflection coating at double-sides or single-side,or no coating

Double-side Plano Coupling G-Lens:

This lens can couple the light emitted by the light source into SM/MM fibers, mainly used in fiber laser products and active optical devices.

Typical Features:

High coupling efficiency and easy assembly

Main use: laser coupling, coupling between fibers

Diameter: 0.5mm, 1.0mm, 1.8mm, 3.0mm or customize(tolerence±0.005mm)

Pitch: 0.11P, 0.14P, 0.17P, 0.23P or customize(Length±0.02mm)

Angles:90±0.5°

Coating Wavelength: 532nm,400nm-700nm,660nm/780nm-1000nm、1250nm-1650nm or customize

Coating: AR coating/Hi-reflection coating at double-sides or single-side,or no coating

Coupling Lensed C-lens:

This lens is with curved endface,that can improve coupling efficiency.Mainly be used for active optical devices,it can couple the light in SM/MM fibers

Typical Features:

Higher coupling efficiency,easy assembly

Small spherical aberration

Wide receiving angle

More concentrated and smaller light spots

Diameter: 0.5mm, 1.0mm, 1.8mm, 3.0mm or customize(tolerence±0.005mm)

Pitch: 0.11P, 0.14P, 0.17P, 0.23P or customize(Length±0.02mm)

Angles:90±0.5°

Coating Wavelength: 532nm,400nm-700nm,660nm/780nm-1000nm、1250nm-1650nm or customize

Coating: AR coating/Hi-reflection coating at double-sides or single-side,or no coating

Coupling lens is the g lens used in the fiber coupler.Fiber-optic coupling is the practice of either combining or splitting optical signals between three or more fiber-optic cables. Most fiber-optic couplers are relatively small devices, though they can vary considerably in complexity, depending on how many inputs and outputs there are. It is possible for a fiber optic coupler to split or combine signals by converting the optical signals into electrical ones or by maintaining the signals in their optical form.

High coupling efficiency and easy assembly.

For laser coupling, coupling between optical fibers.

-Material:special fused silica

-Thermal expansion coefficient:10 x 10-6/℃

-Length:customize(+0/-0.02mm)

-Outer Diameter:o.5mm,1.0mm,1.8mm,3.0mm or customize(+0.005/-0.010mm)

-Angle:90 ± 0.5° degree or customize

-AR Coated(R＜0.25%) or uncoated

-Plano(flat) end or curved to choose.