Chongfan Technology
Products
Product
Zoom Fiber Optic Collimator
Classification：
Detail
Parameters
Technical Data
Product Description
- Focal length range: 6 mm to 18 mm, 15 mm to 40 mm, 37 mm to 80 mm
- Near-Gaussian output
- Outstanding off-axis performance
- Low wavefront error: Measured value of λ/6 (PV value at a fiber NA of 0.14 and a wavelength of 633 nm)
- Fiber optic connectors are available in FC/PC, FC/APC, or SMA905.
Chongfan Technology’s zoom fiber collimator features an achromatic design and offers three anti‑reflection coating options: 400–650 nm, 650–1050 nm, and 1050–1650 nm. Its focal length can be adjusted over ranges of 6–18 mm, 15–40 mm, and 40–80 mm, while maintaining beam collimation throughout the adjustment process. In addition to focal length tuning, it enables precise control of the beam divergence angle, allowing the beam to be focused anywhere between the far‑field limit (see technical notes) and the closest focusing distance. This ensures that free‑space laser beams can be coupled into the fiber with maximum coupling efficiency. Based on an air‑gap lens design, this zoom fiber collimator delivers superior beam quality compared to fixed aspheric fiber collimators. With its low‑aberration air‑gap architecture, its M² factor approaches unity—similar to a Gaussian beam—and exhibits significantly lower wavefront error.
Zoom fiber collimator, focal length: 6 mm to 18 mm
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Focal length range: 6 mm to 18 mm
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Minimum focusing distance: 0.3 m
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The maximum input fiber numerical aperture that can be coupled is 0.25.
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Coating: 400–650 nm, 650–1050 nm, and 1050–1650 nm
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Pointing stability during zoom: FC/PC and FC/APC < 1 mrad, SMA905 < 4 mrad.
Chongfan Technology’s 6 mm to 18 mm zoom fiber collimator is a versatile, general‑purpose device. With a focal length range of 6–18 mm and an achromatic design, it is well suited for a wide variety of applications. To minimize losses caused by surface reflections, both sides of all lenses in the collimator are coated with broadband anti‑reflection coatings. These coatings cover wavelength ranges of 400–650 nm, 650–1050 nm, and 1050–1650 nm. The output port of the zoom fiber collimator features an SM05 internal thread and an SM1 external thread, enabling integration with other optomechanical components. When the zoom or focus ring is adjusted, the rest of the assembly remains stationary, ensuring that beam‑size adjustments do not interfere with any connected parts and providing excellent pointing stability.
Zoom fiber collimator, focal length: 15 mm to 40 mm
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Focal length range: 15 mm to 40 mm
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Minimum focusing distance: 1 m
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The maximum input fiber numerical aperture that can be coupled is 0.25.
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Coating: 400–650 nm, 650–1050 nm, and 1050–1650 nm
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Pointing stability during zoom: FC/PC and FC/APC < 1 mrad, SMA905 < 4 mrad.
Chongfan Technology’s 15 mm to 40 mm zoom fiber collimator is a versatile, general‑purpose device. Its focal length can be adjusted between 15 mm and 40 mm, and its achromatic design makes it suitable for a wide range of applications. To minimize losses caused by surface reflections, both sides of all lenses in the collimator are coated with broadband anti‑reflection coatings. These coatings cover wavelength ranges of 400–650 nm, 650–1050 nm, and 1050–1650 nm. The output port of the zoom fiber collimator features an SM2 external thread, enabling integration with other optomechanical components. When the zoom or focus ring is rotated, the rest of the assembly remains stationary, ensuring that beam‑size adjustments do not interfere with any connected elements and providing excellent pointing stability.
The 15–40 mm zoom fiber collimator is mounted to a post using an SM2-FR fixed sleeve mount.
Zoom fiber collimator, focal length: 37 mm to 80 mm
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Focal length range: 37 mm to 80 mm
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Minimum focusing distance: 2 m
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The maximum input fiber numerical aperture that can be coupled is 0.25.
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Coating: 400–650 nm, 650–1050 nm, and 1050–1650 nm
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Pointing stability during zoom: FC/PC and FC/APC < 1 mrad, SMA905 < 4 mrad.
Chongfan Technology’s zoom fiber collimator, with a focal length ranging from 37 mm to 80 mm, is a versatile device. Its adjustable focal length and apochromatic design make it suitable for a wide range of applications. To minimize losses caused by surface reflections, all lens surfaces are coated with broadband anti-reflection coatings. These coatings cover the wavelength ranges of 400–650 nm, 650–1050 nm, and 1050–1650 nm. The output port of this zoom fiber collimator features an SM3 external thread, enabling integration with other optomechanical components. When the zoom or focus ring is rotated, the rest of the assembly remains stationary, ensuring that beam‑size adjustments do not interfere with any connected elements and providing excellent pointing stability.
The 37–80 mm zoom fiber collimator is mounted onto a post using the V76-HM V‑clamp.
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Address: Room 403, Building 6, Phase III of R&D, No. 36 Xiyong Avenue, High tech Zone, Chongqing, China.
Telephone: +86-13658337211
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Website: www.cfkeji.net
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