Fiber Collimator series 60FC-Q

Fiber Collimator for collimating large beam diameters and with integrated quarter-wave plate

Fiber collimator 60FC-Q-4
Fiber collimator 60FC-Q-4
Fiber collimator 60FC-Q-4
Fiber collimator 60FC-Q-4
Fiber collimator 60FC-Q-4
Representative product images. Individual product images are found on the individual product pages.


The fiber collimators series 60FC-Q are designed for collimating radiation exiting from an optical fiber cable. An integrated adjustable quarter-wave plate is used to generate left-handed or right-handed circularly polarized radiation.
  • Large beam diameters: Focal lengths up to 200 mm
  • Choice of monochromats or achromats
  • Various AR coatings for UV - IR
  • Low-order retardation optics with minimal angular dependency
  • Choice of fiber receptacals: FC PC or FC APC (standard), many others available
  • Integrated TILT adjustment to prevent aberrations from vignetting or clipping
  • Front connector accepts attachment optics
  • With integrated TILT adjustment
  • Components for quantum optics


The fiber collimators series 60FC-Q have an integrated quarter-wave plate and is designed for collimating radiation exiting optical fiber cables with high pointing stability and adjustable right-handed  or left-handed circular polarization. They are suitable for single-mode and polarization-maintaining fiber cables leading to collimated beams with a Gaussian intensity profile.

An optics for each application
A large variety of collimating optics allows that the optimum focal length and the best lens type for a single wavelength (monochromat) or a wavelength range (achromat) can be selected for each application. All lenses are AR-coated.

Adjustment of focus and TILT, and state of polarization
The distance between fiber end-face and collimating optics is adjusted by means of an eccentric key. The lens does not rotate when adjusting the focus. The final focus setting is locked by means of two radially arranged clamping screws. Additionally attachment optics can be mounted to the front of the collimator.
Additionally, the collimator has an integrated TILT adjustment for aligning the beam axis to the mechanical axis. This prevents vignetting of the collimated beam as well as diffraction arising from the clipped beam.
The integrated low order retardation optics with minimal angular dependency allows the adjustment of the state of polarization in the assembled state between right-handed and left-handed circular polarization. This is done using a cogged tool 60Z-2803 and can be monitored using the polarization analyzers series SK010PA. Retardation optics are available for typical wavelengths between 389 nm and 1084 nm.

Optimum lens performance
The angled polish of connectors of type APC is considered by a pre-angled mechanical coupling axis that compensates the beam deflection and you can use the lens centrically. This minimizes aberrations simply resulting from a non-ideal beam path through the lens.

Connector Type  
The fiber collimator can be equipped with FC PC, FC APC, ST or LSA (compatible with fiber connectors type DIN, AVIO and AVIM) receptacles. In case of FC or LSA with a spring loaded ferrule the fiber coupler has an additional grub screw to increase pointing stability.

The fiber collimators are made of nickel silver and black anodized aluminum.

All Fiber Collimators 60FC-Q with diameter Ø 25 mm can be placed in a standard mirror mount. 60FC-Q with a larger diameter posses a flange for low-strain mounting e.g. using the clamp collars series CC.


  • Adjustment
    • How much can I change the focus setting?
      You can change the focus setting ± 2.0 mm. 
    • I am unsure how to correctly adjust my coupler/collimator. Where do I find details about the adjustment procedure?
      Please refer to the manual in the Downloads section for a detailed adjustment procedure.


Adjustment_60FC-Q.pdf (Manual)
Article_FiberCollimators.pdf (Technote)

This downloads section only includes general downloads for the complete series.
Please access the individual product pages (using the product configurator, the product list, order options or the search button if you have a complete order code). Here you will find specific downloads including technical drawings or stepfiles.


for all collimators with flange, different sizes