![]() Our units without included actuators are also available in right- or left-handed configurations. ![]() A selection of modular drive options allows any axis to be manual or motorized with the option for external piezos. Built-in closed- and open-loop piezo options are available. These stages offer a common point of rotation and a patented parallel flexure design that allows all actuators to be coupled directly to the base to minimize any unwanted motion in the system. ![]() Thorlabs' 6-Axis NanoMax Nanopositioners are ideal for complex, multi-axis positioning and have a nominal deck height of 112.5 mm. The AMA554 Height Adapter can be used to raise the deck height of the 3-axis or 4-axis stages to 112.5 mm for compatibility with our 5-axis MicroBlock or 6-Axis NanoMax Stages. Thorlabs' 5-axis stages have nominal heights of 62.5 mm or 112.5 mm. Our 4- and 5-axis stages are ideal for the static positioning of waveguides or complex optical elements with respect to our 3-axis or 6-axis high-performance alignment stages. Finally, our RollerBlock stage drivers can be switched out for any actuator that has a Ø3/8" (9.5 mm) mounting barrel. The MicroBlock stages are available with differential micrometer drives or fine thread thumbscrews these drives are not removable. Our NanoMax line of 3-axis stages offers built-in closed- and open-loop piezos as well as modular drive options that include stepper motors, differential drives, or additional piezos. Each stage features a 62.5 mm nominal deck height. Thorlabs offers three different 3-Axis Stage variations: NanoMax flexure stages, MicroBlock compact flexure stages, and RollerBlock long-travel stages. In the above application, a 3-Axis NanoMax flexure stage is aligned in front of a 6-axis stage at the proper 112.5 mm deck height using an AMA554 Height Adapter. Alternatively, if the clear aperture is large enough, the beam can be expanded before the lens or objective, which effectively reduces the spot size of the focused beam. As a result, if a lens or objective is not available that provides an exact match, then choose an optic with a focal length that is shorter than what the calculation above yields. For optimum coupling, the spot size of the focused beam must be less than the MFD of the single mode fiber. The clear aperture must be larger than the input beam diameter. Lenses or objectives can be used to launch light into an optical fiber. Here, f is the focal length of the lens or effective focal length of an objective, λ is the wavelength of the input light, and D is the 1/e 2 diameter of collimated beam incident on the lens. The MFD should equal the diffraction-limited spot size Ø spot, which is given by the following equation: For specific lens and objective recommendations, please contact Technical Support.Īs an example calculation, the P1-630A-FC-2 FC/PC single mode patch cable, which incorporates SM600 fiber, has an 1/e 2 mode field diameter (MFD) of 4.3 μm at 633 nm. The focal length or effective focal length required to optimize coupling can be estimated using the relationship below. This MicroBlock stage features high resolution differential adjusters and is ideal for optimizing the coupling of a free space laser into a single mode fiber or polarization maintaining fiber, even at visible wavelengths where the mode field diameter of the fibers are as small as 3 µm.Ī wide range of accessories is available to mount items such as microscope objectives, collimation packages, wave guides, fiber, and much more.Ĭhoosing the correct lens or objective for launching light into a fiber depends on several factors, such as the input wavelength, beam diameter, and the mode field diameter (MFD) of the fiber. These preconfigured systems are ideal starter kits that can be quickly adapted to many applications. Systems are available for a range of single mode or polarization-maintaining fiber launch applications. These fiber launch systems are based on our MBT616D( /M) MicroBlock™ 3-axis flexure stage. MBT621D(/M) Polarization-Maintaining Fiber Launch with Fiber Rotator.MBT613D(/M) Single Mode Fiber Launch with FC-Terminated Mount.MBT610D(/M) Single Mode Fiber Launch with Variable V-Groove Clamp.MBT612D(/M) Single Mode Fiber Launch with Quick-Release Clamp. ![]() Four Different Basic Fiber Launch Solutions Available:.Grooved Top Plate Creates Proper Alignment with Multi-Axis Stage Accessories.Flexure Design Ensures Smooth Continuous Motion and Long-Term Stability.
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