Thorlabs demonstrates two techniques for aligning a laser beam to travel parallel with the optical table. The first technique assumes the tip and tilt of the laser's pointing angle can be adjusted and uses a ruler to level the beam and direct it along a row of holes in the table. The second technique assumes the angle of the input laser beam is fixed. Two turning mirrors and two irises are used to level the beam and direct it along an orthogonal row of holes in the table.

0:00 - Introduction
1:25 - Adapter Used to Install Laser in Kinematic Mount
2:05 - Adjusting the Mount to Correct Pointing Angle
4:09 - Beam Walk Demonstration Using Mirrors & Irises

Components used in this demonstration include:
- PL202 Collimated Laser Module: https://www.thorlabs.com/newgrouppage...
- KM100 Kinematic Mounts: https://www.thorlabs.com/newgrouppage...
- AD11NT Adapter: https://www.thorlabs.com/newgrouppage...
- BHM1 Ruler: https://www.thorlabs.com/thorproduct....
- PF10-03-P01 Mirrors: https://www.thorlabs.com/newgrouppage...
- IDA25 Irises: https://www.thorlabs.com/newgrouppage...
- Ø1/2" Post Holders: https://www.thorlabs.com/newgrouppage...
- BA2 Base: https://www.thorlabs.com/newgrouppage...
- Ø1/2" Posts: https://www.thorlabs.com/newgrouppage...
- Ø1/2" Universal Post Holders: https://www.thorlabs.com/newgrouppage...

For more photonics how-to videos, visit https://www.thorlabs.com/newgrouppage....