COL005/COL012/COL025, FSG012/FSG025 Receptacle Style Collimators & Focusers

1550 nm; 1.30 mrad; 1.52 mm; Lens EFL 8.0 mm; Lens NA 0.50; FC/APC; M12x0.5-6g ThreadThe Zemax file of the precision molded aspheric lens built into this collimator can be downloaded here: file. Do you need a customised collimator? Click here to contact us. All products supplied by GH Optics are RoHS compliant and meet the requirements of the current EU RoHS Directive 2011/65/EU. The RoHS certificate can be provided on request.

Receptacle Style; 180 to 2000 nm; Coupling Efficiency >60% to >80%; Backreflection -14 to -60 dB; Power Handling >1 to >100 W In OZ Optics' HPUC series of receptacle style, non-contact style laser to fiber couplers, an air gap exists between the fiber and the lens. This design is more flexible, allowing a wide range of lens types and focal lengths to be used. The distance between the fiber and the lens can be adjusted to compensate the changes in the source wavelengths or to intentionally defocus the laser beam to prevent arcing in high power laser to multimode fiber applications. Couplers using GRIN lenses, achromats, aspheres, fused silica, plano-convex, and biconvex lenses have all been made utilizing this design. Non-contact style couplers can handle input powers of up to 100 W CW, and even higher energies from pulsed sources. They are best suited for applications where either the input energy is higher than 400 mW, or when more than one wavelength is to be coupled into the fiber, or for input beams that have unusually large beam diameters or divergence angles. They also have superior polarization maintaining capabilities compared to physical contact style couplers. However because of the air gap between the fiber and the lens, the backreflection level for the endface of the fiber is about -14 dB. This can be reduced to -40 dB to -60 dB by slant polishing both fiber ends to deflect the backreflected signal. There is a significant variation in the endface geometries of angled PC (APC) connectors. This effects the spacing between the endface of the fiber and the lens. To minimize this variation, OZ Optics offers an angled flat (AFC) connector. This connector features a beveled endface where the fiber itself is angled but the ferrule tip is flat. This geometry provides optimum repeatability between connections. For users of SMA connectors, please note that standard SMA connectors and receptacles are constructed to rather loose tolerances, leading to poor repeatability. For core diameters of 100 µm or smaller, we recommend using SMA connectors with Zirconia ferrules and receptacles with Zirconia sleeves. This will give maximum repeatability. Better still, consider using FC connectors instead. Key Features: High Power Handling Wide Range of Lenses Excellent Polarization Maintaining Capabilities Different Connector Receptacle Versions Wide Wavelength Ranges Applications: Laser Shows/Entertainment; Spectroscopy; Interferometric Sensors; Fluorescence Measurements; Medical, Pharmaceutical & Chemical Sensors; OEM Laser Systems

SMA Connector; 185-2100 nm; Focal Length 10 mm; Clear Aperture 5 mm; f# 2; Numerical Aperture 0.24 Mightex’s DCC-010-005 series of direct-coupling collimators are used to either coupling light from free space into a spectrometer or collimating light from a point light source to form a collimated (parallel) optical beam. Direct-coupling collimators are key components with numerous applications. For example, in spectroscopy, a direct coupling collimator can collect light in a narrow field of view into a spectrometer. In another example one collimator is connected to a point light source and the collimated beam passes through a cuvette. On the other side of the cuvette a second collimator couples light directly into a spectrometer. To maximize transmission wavelength range, Mightex DCC-010-005 direct-coupling collimators feature a single BK7 (DCC-010-005-V, 350 to 2000 nm) or UV fused silica lens (DCC-010-005-U, 185 to 2100 nm) without optical coating. The DCC-010-005 series collimator housing is machined from aluminium alloy for maximum durability. The collimators feature an internal SMA thread for direct connecting to spectrometers with popular SMA input ports When installed on a spectrometer, the full field of view (FOV) or full divergence angle can be calculated as FOV = 2atan(W/2f) where W is the width of the entrance slit of the spectrometer and f is the focal length of the lens. Alternatively, the linear field of view on an object placed a distance L away from the collimator is W(L/f). Focusing of the collimator is adjustable for object distance between 50 mm and infinity. Key Features: Wavelength Range: 350 to 2000 nm (DCC-010-005-V with BK7 Lens), 185 to 2100 nm (DCC-010-005-U with UV Fused Silica Lens) Focal Length: 10 mm Clear Aperture: 5 mm f#: 2 Numerical Aperture: 0.24 Adjustable Focus Aluminium Alloy Construction Internal SMA Thread Applications: Coupling Light into Spectrometers; Collimating Light from Light Sources; Spectroscopy