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The TTR001(/M) Tip, Tilt, and Rotation Stage provides ±5° uncoupled tilt adjustment in pitch and roll, together with ±10° rotation (yaw) adjustment. These adjustments allow optical components and fixtures to be aligned with a plane and then rotated within that plane. The center of roatation axis is located at a line normal to the center of the platform. Both the tip and tilt axes will move with respect to a point located 12 mm below the top surface of the stage on the rotation axis. The top plate features an array of 21 8-32 (M4) threaded holes on a 1/2" (12.5 mm) pitch. An 8-32 to 6-32 thread adapter is included with imperial stages for use with the PM3(/M) and PM4(/M) clamping arms sold below.
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TTR001 stage raised to same deck height as MAX311D stage for use in a typical refraction application.
The high-resolution Mitutoyo micrometers incorporated into the stage are marked with a 0.001" (10 µm) scale and provide positioning accuracy within 5 arcseconds. Turning the micrometers gives 1.5° of rotation and 1.78° of tilt per revolution. Preload adjustment to eliminate backlash can be performed by adjusting the knobs adjacent to the micrometers as shown above. One knob adjusts/locks the pitch (Θx) and roll (Θy) axes simultaneously, while the other knob adjusts/locks the yaw (Θz) axis. Note that if the knob is tightened, the motion in that axis is effectively locked until the micrometer is backed off. In this case, some friction may be experienced when adjusting the remaining axis.
The stage is fixed to the work surface via three clearance holes for standard 1/4"-20 (M6) screws. The deck height of the stage is 1.48" (37.5 mm). A Height Adapter Plate [TTR001SP1(/M)] is available to raise the deck height to the standard 2.46" (62.5 mm), making the stage compatible with our NanoMax, MicroBlock, and RollerBlock 3-Axis Stages. The height adapters are fixed to the work surface using the four clearance holes that accept standard 1/4"-20 (M6) screws. The stage is then mounted to the height adapter using the three 1/4"-20 (M6) tapped holes.
A typical application is shown to the right, where the TTR stage is raised up to mate with a MAX311D 3-axis stage. A PM4 clamping arm is used to mount a prism on the tip, tilt, and rotation stage. An HCS013 Mount and RMS09 adapter are mounted on the MAX311D stage and used to hold a collimating lens with connectorized fiber. The collimated laser beam is directed onto the prism, and the laser refraction is adjusted via the TTR001 stage micrometers.
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Clamping Arm Extension Posts with Metric Indicator Groove
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Thorlabs' PM3(/M) and PM4(/M) Clamping Arms use a nylon-tipped setscrew with a 5/64" (2.0 mm) hex to secure optics to our kinematic platform mounts and V-clamps. The PM3(/M) accommodates optics up to 0.97" (24.6 mm) tall and features a 0.69" (17.5 mm) center-to-center distance between the post and the nylon-tipped setscrew. In contrast, the PM4(/M) accommodates optics up to 1.61" (40.9 mm) and features a 1.16" (29.3 mm) center-to-center distance between the post and the nylon-tipped setscrew. The maximum optic height of the PM3(/M) or PM4(/M) Clamping Arms can be extended using our PM3SP(/M) or PM4SP(/M) Extension Posts, respectively. These extension posts are identical to the posts included in each complete clamping arm.
The clamping arm for all items is held to the post using a flexure mechanism that locks with a 5/64" (2.0 mm) balldriver or hex key. The post also offers a through hole for added torque when tightening down the post. Please see the diagram above for additional information.