The Model F-H10 Series Collimators are designed specifically for single-mode and polarization maintaining (PM) fiber applications, which need to generate a clean Gaussian Beam at any distance. They are designed for long distance projection applications such as free space communications and alignment of very large objects. They are also ideal for interferometry, confocal microscopy and applications requiring low wavefront error. The clear aperture is 10 mm and the collimators are offered with FC or FC/APC receptacles to accept any single-mode or PM fiber. The output is user adjustable to vary the beam for best collimation at the wavelength and the distance of interest. The high precision optics deliver a wavefront error <λ/10 and a full beam divergence of <0.5 mrad. The F-H10 Series may be conveniently mounted in Newport's MH-2P Mount (see Fixed Position Lens Mounts).The Model F-C5 Series Collimators are designed to accept FC or SMA type fiber connectors and collimate a beam exiting a single-mode fiber to a 2.0 mm to 3.0 mm beam. Conversely, a laser beam can be launched into the assembly to focus the beam into a connected fiber. High quality, broadband AR coated, glass aspheric lenses are used for low insertion loss and beam sizes only limited by diffraction. The F-C5 Series may be mounted in the CLH-11 adaptor, which fits into most 1" mirror mounts.Applications include laser beam delivery systems, as well as coupling the output of a fiber into a detector. Applications of pairs of collimators include beam expansion systems for lab applications, as well as fiber-to-fiber coupling in compact components.