Les Lab | Second Harmonic Generation in a 15 Kilowatt Laser! @LesLaboratory | Uploaded 1 year ago | Updated 5 minutes ago
Episode 53
#optics
#laser
#nonlinearoptics
Let's measure the Twotrees 1064nm Laser Head, and investigate non-linear second harmonic generation, converting this IR Laser to Green!
1064 laser module： http://bit.ly/3ZTLKeZ
Check out my other videos: youtube.com/leslaboratory
Please don't forget to like, subscribe and comment for more great content!
If you found this content useful, and would like to support this Channel, please consider supporting this work on Patreon: patreon.com/leslaboratory
Or donate directly: paypal.me/leslaboratory
Alternatively, please share this content on your social media platforms, it really helps me out!
In this video I explain how the TwoTrees 1064nm Infrared Laser works. This is a Diode Pumped Q-Switched Laser Nd YAG Laser, with a claimed peak output power of 15 Kilowatts!
Internally a Neodymium YAG rod is pumped by an 808nm Laser diode, and this a q-switched by means of a Cr:YAG saturable absorber, resulting in a nanosecond Laser with high peak powers. I measure the output with a Gentec Pyroelectric sensor and a Fast photodiode from Thorlabs.
In the second half o the video I explain Second Harmonic Generation (SHG) works. This is the process that is used in a green Laser pointer, and demonstrate this with a Potassium Titanyl Phosphate (KTP) nonlinear crystal generating a 532nm Green Laser Light! Of course everyone loves an obligatory Laser beam shot!
0:00 Intro
0:13 Laser description
0:58 How a Diode pumped Q-Switched Solid State Laser works!
2:47 Measurement setup
5:21 Measuring Pulse Width
7:19 Measuring Pulse Energy
7:46 Calculator
8:42 Collimating the beam
9:48 How Green DPSS Lasers Work
11:38 Second harmonic Generation Demonstration
12:04 Beautiful Green Beams!
13:48 Outro and Credits
Episode 53
#optics
#laser
#nonlinearoptics
Let's measure the Twotrees 1064nm Laser Head, and investigate non-linear second harmonic generation, converting this IR Laser to Green!
1064 laser module： http://bit.ly/3ZTLKeZ
Check out my other videos: youtube.com/leslaboratory
Please don't forget to like, subscribe and comment for more great content!
If you found this content useful, and would like to support this Channel, please consider supporting this work on Patreon: patreon.com/leslaboratory
Or donate directly: paypal.me/leslaboratory
Alternatively, please share this content on your social media platforms, it really helps me out!
In this video I explain how the TwoTrees 1064nm Infrared Laser works. This is a Diode Pumped Q-Switched Laser Nd YAG Laser, with a claimed peak output power of 15 Kilowatts!
Internally a Neodymium YAG rod is pumped by an 808nm Laser diode, and this a q-switched by means of a Cr:YAG saturable absorber, resulting in a nanosecond Laser with high peak powers. I measure the output with a Gentec Pyroelectric sensor and a Fast photodiode from Thorlabs.
In the second half o the video I explain Second Harmonic Generation (SHG) works. This is the process that is used in a green Laser pointer, and demonstrate this with a Potassium Titanyl Phosphate (KTP) nonlinear crystal generating a 532nm Green Laser Light! Of course everyone loves an obligatory Laser beam shot!
0:00 Intro
0:13 Laser description
0:58 How a Diode pumped Q-Switched Solid State Laser works!
2:47 Measurement setup
5:21 Measuring Pulse Width
7:19 Measuring Pulse Energy
7:46 Calculator
8:42 Collimating the beam
9:48 How Green DPSS Lasers Work
11:38 Second harmonic Generation Demonstration
12:04 Beautiful Green Beams!
13:48 Outro and Credits
