Great video. One small note regarding the shear plate...coherence length of the source is important...if you use the shear plate approach and see no fringes check the coherence length of your source.
Thanks for the series on the basics of optical alignment. I am, however, facing some problems from Beamsplitter cubes. There are many stray beams. Do you have any suggestion regarding this issue? Could you please do an episode on Beamsplitter cube and their alignment? Thanks, Tamal
Hi Tamal, stray beams from beamsplitter cubes can stem from multiple back reflections. You can reduce that by using a beamsplitter cube with suitable coating, e.g. A-coating for visible light (see a list of coatings from a major manufacturer here: www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=5840)
As an Optical Engineering Student, I found your videos so helpful, especially for our PL Setup. Thank you. Keep up the good work.
Great to hear that my videos were helpful - good luck with your project!
Great video. One small note regarding the shear plate...coherence length of the source is important...if you use the shear plate approach and see no fringes check the coherence length of your source.
This Optical Alignment video series is exactly what I needed and very helpful. Thank you for making these!
Thanks a lot for a quick and nice demonstration!
Nice Video! Definitely helpful. Maybe you can increase the volume a bit?
Thanks for the series on the basics of optical alignment. I am, however, facing some problems from Beamsplitter cubes. There are many stray beams. Do you have any suggestion regarding this issue? Could you please do an episode on Beamsplitter cube and their alignment? Thanks, Tamal
Hi Tamal, stray beams from beamsplitter cubes can stem from multiple back reflections. You can reduce that by using a beamsplitter cube with suitable coating, e.g. A-coating for visible light (see a list of coatings from a major manufacturer here: www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=5840)