Precision Single-Mode Fiber Couplers
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Catalog excerpts

Precision Single-Mode Fiber Couplers F-1015 F-1015LD Chuck not included. Order separately for your specific application requirement. • Single-mode coupling efficiency near theoretical maximum • 0.1 micron resolution • Free-space laser and laser diode models • Compact, post-mountable design • Easy to use Sub-micron resolution and stability are required when coupling laser light into the core of a single-mode fiber. Our F-1015 Precision Single-Mode Fiber Couplers use a steering lens to achieve 0.1 micron resolution in a compact package. These couplers are very easy to use. An input iris assists in centering the laser beam. The beam passes through a steering lens, which is mounted in a precision X-Y translation assembly with 100 pitch adjustment screws. An objective lens focuses the beam on the fiber core. Translating the steering lens causes a second-order translation of the focused beam across the fiber end-face, providing 0.1 micron beam positioning resolution with negligible changes of incident angle at the fiber face. For use with free-space laser, operating in the visible wavelength range, Model F-1015 has a steering lens with a multilayer dielectric AR coating and a M-20X Microscope Objective. The effective focal length is 9 mm. For use with laser diodes, Model F-1015LD has a steering lens that is AR coated for high transmittance at 850, 1300, and 1550 nm. It comes equipped with an F-L10B Laser Diode Objective Lens and has an effective focal length of 12 mm. (For optimal performance, a collimated beam should be incident on the coupler. A variety of lenses are designed for this purpose, see page 469.) These couplers are constructed of anodized aluminum and are sold without fiber chucks. The FPH-J four-jaw fiber chuck with Teflon liner for fibers less than 250 microns in diameter, and the FPH-DJ Delrin-jawed chuck for fibers 250 microns to 1 mm in diameter are the bare fiber chucks of preference. The FPH-S and FPH-S-2.5 slotted fiber chucks can also be used. Dimensions Model F-1015 and F-1015LD Ordering Information Model Description Wavelength (nm) F-1015(1) For visible and NIR lasers 400–800 F-1015LD(1) For laser diodes 850, 1200–1550 1) An FPH-S, FPH-S-2.5, FPH-J or FPH-DJ bare fiber chuck must be ordered separately. see page 468 See our website CADfor CAD files P h o t o n i c s a n d I n s t r u m e n t a t i o n 461 POLARIZATION MEASUREMENT AND CONTROL FIBER AMPLIFIERS LASER DIODE CONTROL LASER DIODE MOUNTS FIBER OPTIC COMPONENTS OPTICAL FIBERS AND ACCESSORIES FIBER ALIGNMENT AND ASSEMBLY EDUCATIONAL KITS Email: [email protected] • Web: newport.com

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