Fast Axis Collimators

Fast Axis Collimators (FAC-Lenses) are cylindrical lenses designed with an aspheric optical front and a flat backside, specifically for collimating the spreading light beams from a diode laser along the fast axis. These lenses compress diverging laser light from a laser diode into parallel beams and adjust the beam profile, making them crucial components in high-power diode laser systems.

Specifications:

Materials	Optical Glass
Coating Wavelength Range	790-990nm
Coating	BBAR Coating (790-990nm)
Coating Specification	Ravg<1.0%@790-990nm
Design Wavelength	808nm
Height Tolerance	±0.05mm
Length Tolerance	±0.05mm
Dimension	Custom
Surface Flatness	λ/4
Width Tolerance	±0.01mm
Transmission	>99%
Numerical Aperture	0.8
Collimation Power	>80% within 1.15xDIV; >85% within 1.30xDIV

 

Key Features:

• Collimation of Diode Laser Beams: FAC lenses are designed to collimate spreading light beams from a diode laser along the fast axis, transforming divergent light into parallel beams.
• Beam Profile Adjustment: These lenses help adjust and shape the beam profile for optimal performance in various applications.
• High-Power Applications: Suitable for high-power diode lasers, ensuring efficient beam shaping and high transmission.

Applications:

1.High-Power Diode Lasers:

• Beam Collimation: FAC lenses are crucial in high-power diode laser systems to collimate the fast axis of the laser beam, ensuring a well-defined and parallel output.
• Beam Shaping: They adjust and shape the beam profile for optimal performance, which is vital in applications requiring precise beam quality and focus.

2.Optical Communication:

• Signal Transmission: FAC lenses enhance the quality of laser beams used in optical communication systems, ensuring minimal loss and high transmission efficiency.
• Coupling Efficiency: They improve the coupling efficiency between the laser diode and optical fibers or other components.

3.Laser Material Processing:

• Cutting and Welding: In laser cutting and welding, FAC lenses help in achieving a fine, focused beam that is crucial for precision and efficiency.
• Marking and Engraving: They enable high-resolution laser marking and engraving by providing a well-collimated and precise laser beam.

4.Medical and Biomedical Applications:

• Laser Surgery: FAC lenses ensure a precise and controlled laser beam for surgical procedures, enhancing accuracy and reducing collateral damage to surrounding tissues.
• Medical Imaging: They are used in medical imaging systems to improve the quality and resolution of laser-based imaging techniques.

5.Optical Metrology:

• Measurement Systems: FAC lenses are used in optical metrology systems to provide a collimated laser beam, essential for accurate measurements and inspections.
• Interferometry: They enhance the performance of interferometric measurement systems by ensuring a stable and parallel laser beam.

th a focus on high transmission, beam quality, and customizable options, Kingwin Optics ensures that your high-power laser applications achieve optimal performance. Whether you require stocked or custom FAC lenses, Kingwin Optics offers solutions tailored to your specific needs, supported by professional consultancy and rigorous quality control.