High-Precision Knob-Focused Collimator

High-Precision Knob-Focused Collimator

Supplier
Dospectrum
Category
Lamps
Origin
China

The high-precision knob-focus collimator collimates fiber output or couples free-space light into fiber. Controlled machining tolerances and a special internal design maintain excellent coaxiality throughout focus adjustment. Fine threads balance smooth operation with precision. Long-term stability is good, with little internal stress from ambient temperature changes and sustained high coupling efficiency. High-quality lenses ensure Gaussian output and coupling efficiency.

Specification Snapshot
Focal length [Optional Aspheric Lens Models: A5.5]
5.5 mm
Focal length [Optional Aspheric Lens Models: A6.2]
6.2 mm
Focal length [Optional Aspheric Lens Models: A7.5]
7.5 mm
Focal length [Optional Aspheric Lens Models: A9.6]
9.6 mm
Focal length [Optional Aspheric Lens Models: A11]
11 mm
Focal length [Optional Aspheric Lens Models: A13.9]
13.86 mm
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Overview

The high-precision knob-focus collimator collimates fiber output or couples free-space light into fiber. Controlled machining tolerances and a special internal design maintain excellent coaxiality throughout focus adjustment. Fine threads balance smooth operation with precision. Long-term stability is good, with little internal stress from ambient temperature changes and sustained high coupling efficiency. High-quality lenses ensure Gaussian output and coupling efficiency.

Specifications

ParameterValue
Clamping diameter φ13.5mm
Fine Focal-Adjustment ThreadThread Pitch 0.25mm
Fiber connector TypeFC-PC/FC-APC
Focal length [Optional Aspheric Lens Models: A5.5]5.5 mm
NA [Optional Aspheric Lens Models: A5.5]0.6
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A5.5]6 mm
Center wavelength Design [Optional Aspheric Lens Models: A5.5]633nm
Focal length [Optional Aspheric Lens Models: A6.2]6.2 mm
NA [Optional Aspheric Lens Models: A6.2]0.4
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A6.2]5 mm
Center wavelength Design [Optional Aspheric Lens Models: A6.2]780nm
Focal length [Optional Aspheric Lens Models: A7.5]7.5 mm
NA [Optional Aspheric Lens Models: A7.5]0.3
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A7.5]4.54 mm
Center wavelength Design [Optional Aspheric Lens Models: A7.5]780nm
Focal length [Optional Aspheric Lens Models: A9.6]9.6 mm
NA [Optional Aspheric Lens Models: A9.6]0.3
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A9.6]5.2 mm
Center wavelength Design [Optional Aspheric Lens Models: A9.6]633nm
Focal length [Optional Aspheric Lens Models: A11]11 mm
NA [Optional Aspheric Lens Models: A11]0.25
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A11]5.5 mm
Center wavelength Design [Optional Aspheric Lens Models: A11]633nm
Focal length [Optional Aspheric Lens Models: A13.9]13.86 mm
NA [Optional Aspheric Lens Models: A13.9]0.18
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A13.9]5.1 mm
Center wavelength Design [Optional Aspheric Lens Models: A13.9]650nm
Focal length [Optional Aspheric Lens Models: A15.3]15.29 mm
NA [Optional Aspheric Lens Models: A15.3]0.16
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A15.3]5 mm
Center wavelength Design [Optional Aspheric Lens Models: A15.3]780nm
Focal length [Optional Aspheric Lens Models: A18.4]18.4 mm
NA [Optional Aspheric Lens Models: A18.4]0.15
Maximum Clear Aperture Diameter [Optional Aspheric Lens Models: A18.4]5.5 mm
Center wavelength Design [Optional Aspheric Lens Models: A18.4]780nm
Coating Stack [Optional Aspheric Lens Models: A5.5、A6.2、A7.5、A9.6、A11、A13.9、A15.3、A18.4]350-700nm;600-1050nm;1050-1550nm

Applications

Collimation of fiber output or coupling free-space light into fiber.

Key Features

Coaxial design maintains concentricity during focusing with pointing shift <0.5mrad; compact, stable, temperature-drift-resistant mechanics; Gaussian collimated output/high fiber-coupling efficiency;0.25mm adjustment thread, large cap enables movement control to 10μm with light, smooth feel; supports output collimation and free-space-to-fiber coupling while retaining coaxial alignment.

Datasheet

Product Datasheet
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Supplier Information

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Dospectrum
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Focusing on the R&D and industrialization of high-end optoelectronic instruments, continuously promoting breakthroughs and implementation of optoelectronic technology. With spectral technology as its core, the company has built a complete product system covering detectors, lasers, precision optical measurement and other fields, with industry-leading technical indicators, while providing high-quality products and professional technical support to spectral developers. The company is committed to serving national strategies and cutting-edge science and technology. Its high-end instruments and customized solutions have been deeply applied in quantum optics, fusion energy, large-scale scientific facilities and other advanced research and future industrial fields. Adhering to the philosophy of "technological innovation, quality-oriented", DoSpectrum Optics is continuously promoting breakthroughs and industrialization of optoelectronic technology.

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