Would be nice to know the exact type of LD you used - as if I remember correctly it has to have a certain coating (or not). And also listing the used Thorlabs components is also helpful ;-)
so funny. The guys are using teflon tape to fix the lens holder. Same as I did :)) But one day I have found that someone from our students has locked the holder with a locking ring, tens of them were usually lying unused.. Much more convenient to use. But some other comments are: Quite a bad have to place a hand in a beam while tuning the kinematic mount.. Quite a bad have to fix the holder on the table with a clamp straitened along the beam - while fixing, one will put a screwdriver in a beam.. And the most bad have is to wear glasses prior to put something in a beam. Especially in a big lab with a lot of "possible" people around, which do not wear glasses. If one introduces something, a laser should be off or beam should be blocked.. However, the idea of narrowing the linewidth by such a simple approach is really nice. I always though that one needs some special uncoated laser diodes for such experiments.. Should try it out.
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Good tutorial! Maybe changing Allign to Align might help to collect even more searches on the topic.
Is there a video that also does the Littman-Metcalf configuration
Would be nice to know the exact type of LD you used - as if I remember correctly it has to have a certain coating (or not).
And also listing the used Thorlabs components is also helpful ;-)
so funny. The guys are using teflon tape to fix the lens holder.
Same as I did :))
But one day I have found that someone from our students has locked the holder with a locking ring, tens of them were usually lying unused.. Much more convenient to use.
But some other comments are:
Quite a bad have to place a hand in a beam while tuning the kinematic mount..
Quite a bad have to fix the holder on the table with a clamp straitened along the beam - while fixing, one will put a screwdriver in a beam..
And the most bad have is to wear glasses prior to put something in a beam. Especially in a big lab with a lot of "possible" people around, which do not wear glasses.
If one introduces something, a laser should be off or beam should be blocked..
However, the idea of narrowing the linewidth by such a simple approach is really nice. I always though that one needs some special uncoated laser diodes for such experiments.. Should try it out.
I've got maybe stupid question, which 1st order should I use; weaker or stronger, to reflect it back to LD?
Thank you! Very good video!
Very useful! Thank you for the video.
I's very useful and clear , thank you
Very useful, cool tutorial! ;)
Great vid!
Really helpful!!
What is the laser module you are using?
Seems to be a thorlabs laser module
Thank you very much!
Thank you, very useful