Fiber Port Coupler with Aspheric Lens Collimator 4.6mm, 7.5mm, 11mm EFL

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Specifications

Wavelength: 350 - 1650nm
EFL: 4.6 - 11.0nm
Fiber MFD: 3.5um, 5.0um, 10.4um
Beam Waist Diameter: 0.75mm ~ 2.09mm
Divergence Angle: 0.32~2.27mrad
NA (Lens): 0.23, 0.3, 0.52
AR Coating: R＜0.5% @ 350-700nm；R＜0.5% @ 600-1050nm；R＜0.5% @ 1050-1650nm
Transmittance: ＞95%
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Features


  • Connecting fiber collimated output or coupling free space collimated light into fiber

  • Five Degrees of Freedom Plus Rotational Adjustment

  • Optional combination of an aspherical lens and an achromatic lens

  • Connector Options: FCPC, FC/APC, SMA905

  • Three  AR-Coated  Lens  Options: 400-700nm, 650-1050nm, 1050-1650nm

  • When used in combination with YSenser's  standard jumpers, it can improve coupling efficiency and ensure good repeatability.

Applications


  • Used to launch or receive light in free-space optics experiments.

  • Essential for beam shaping, alignment, and redirection in open-path setups.

  • Collimate light from high-power multimode fiber-coupled diode lasers.

  • Common in materials processing (cutting, welding, engraving) where a wider beam is preferred.

  • Collimated beams are required for absorption, Raman, or fluorescence spectroscopy.
    A large beam helps improve signal collection or sampling over larger areas.

  • Used to emit or collect light signals over longer distances with lower divergence.
    Multimode fibers help deliver high-power pulses, while collimators shape the output.

  • Provides a controlled beam size for surface profiling, 3D scanning, or alignment verification.

  • Enhances measurement repeatability and precision.

  • Delivers uniform, large-diameter beams for illumination in endoscopy, photoacoustic imaging, or optogenetics.

  • Multimode fibers allow for high-power, even distribution of light.

  • Used in fiber-to-free-space and fiber-to-fiber coupling setups for testing optical components like filters, mirrors, or lenses.

  • Provides bright, uniform light for inspection systems in manufacturing environments.