What is a SelfFocusing Coupling Lens?
A selffocusing coupling lens is an advanced optical element that can efficiently couple light emitted from a light source into singlemode or multimode fibers. Its unique gradient refractive index design makes it excel in coupling efficiency and ease of installation, and it is widely used in stage laser products and active optical devices.
Features of SelfFocusing Coupling Lenses
2.1 High Coupling Efficiency
Selffocusing coupling lenses achieve high coupling efficiency through their internal gradient refractive index design, which allows continuous refraction of light within the lens. This ensures that light is precisely focused onto the core of the optical fiber, minimizing energy loss and improving the overall system performance.
2.2 Easy Installation
The cylindrical structure design and endface treatment process of selffocusing coupling lenses make the installation and alignment process simpler. Users can quickly complete the installation and adjustment of the lens, significantly reducing time and labor costs, which is especially suitable for optical systems requiring rapid deployment.
2.3 Versatile Application Scenarios
Selffocusing coupling lenses are widely used in optical systems, particularly in scenarios requiring efficient optical coupling. Their high precision and reliability make them an ideal choice for semiconductor pump laser coupling and fibertofiber coupling.
Applications of SelfFocusing Coupling Lenses
3.1 Semiconductor Pump Laser Coupling
In semiconductor pump lasers, selffocusing coupling lenses can efficiently couple light emitted from the laser into the fiber. By precisely focusing the light and achieving efficient optical energy transfer, they enhance the working efficiency and stability of the laser.
3.2 FibertoFiber Coupling
Selffocusing coupling lenses can achieve efficient coupling between fibers. In fiber communication systems, lenses can accurately align the cores of two fibers, ensuring efficient transmission of optical signals and reducing signal loss and attenuation.
3.3 Stage Laser Products
In stage laser systems, selffocusing coupling lenses are used to couple laser beams into fibers, ensuring that the laser beams maintain high intensity and brightness during transmission, providing excellent visual effects for stage performances.
3.4 Active Optical Devices
Selffocusing coupling lenses also play an important role in active optical devices such as photodetectors, optical modulators, and optical switches. Their high coupling efficiency and low insertion loss improve the performance and stability of these devices.
Performance of SelfFocusing Coupling Lenses
4.1 Performance Indicators
VY Optics’ selffocusing coupling lenses undergo strict quality control to ensure that each lens has excellent optical performance and mechanical stability. Key performance indicators include high coupling efficiency, low insertion loss, and high transmission efficiency.
4.2 Surface Quality
Under a 20x magnifying glass, the surface of selffocusing coupling lenses should be free of obvious defects, ensuring that the imaging quality and coupling effect are not affected by surface blemishes.
4.3 Standard Lens Parameters
Numerical Aperture (N.A.): 0.46, 0.60
Diameter: 1.0mm, 1.8mm, 3.0mm
Pitch (P): 0.23, 0.25, 0.29, etc.
Wavelength: 630nm, 780nm, 830nm, 1060nm, 1310nm, 1550nm, 980/1550nm, 1250~1650nm
4.4 Coating
The end face of selffocusing coupling lenses can be coated with an antireflective coating to reduce optical energy loss, protect the lens surface, and prevent moisture, chemical reactions, and physical damage.
Contact Us
For more information about VY Optics’ selffocusing coupling lenses or to order products, please contact our sales team. We will provide you with professional technical support and highquality products to help your optical systems achieve optimal performance.
