The F-1015LD Precision Single-Mode Fiber Coupler is designed to use with laser diodes. It comes equipped with a steering F-LA22 Laser Diode Aspheric Objective Lens to achieve 0.1 μm resolution in a compact package. The objective lens is AR coated for high transmittance at 850, 1300, and 1550 nm and has an effective focal length of 11 mm. This coupler is 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. The 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 μm beam positioning resolution with negligible changes of incident angle at the fiber face. This coupler is constructed of anodized aluminum and is sold without fiber chucks. The FPH-J four-jaw fiber chuck with Teflon liner for fibers less than 250 μm diameter, and the FPH-DJ Delrin-jawed chuck for fibers 250 μm to 1 mm diameter are the bare fiber chucks of preference. The FPH-S and FPH-S-2.5 slotted fiber chucks can also be used.
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