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Entry   Alphanov amplifier Beam Pulse Duration, posted by Manar Amer at ThomX igloo about lasers and optics pulse-check_compressed.pdf
    Reply   Alphanov amplifier Beam Pulse Duration, posted by Manar Amer at ThomX igloo about lasers and optics 20220401_Alphanov_Pulse_Duration.jpg20220408_AMplifier_133MHz_Pulse_duration.jpg20220408_AMplifier_133MHz_Pulse_duration_better_alignment.jpg
       Reply   Alphanov amplifier Beam Pulse Duration, posted by Manar Amer at ThomX igloo about lasers and optics 
Message ID: 145     Entry time: Fri Apr 8 19:24:32 2022     In reply to: 144     Reply to this: 146
 Author: Manar Amer 
 Status: Fixed 
 Type: report 
 Category: lasers and optics 
 Location: ThomX igloo 
 Title: Alphanov amplifier Beam Pulse Duration 

Measurement of the pulse was done at the end of the afternoon, Pulse Duration FWHM = 12.9 ps

After a long process of adjusting the alignment and angle of the crystal inside the device

The power input on the PulseCheck device should be above the sensitivity, in our case we had 1 mW input.

To reach it, we removed one of the wedge mirrors and used dielectric mirrors with an amplification of 20% ~ 25 W direct output power.

The input to the pulsecheck must be horizontally polarized, which is why we used a polarizing beam splitter (PBS).

For a better pulse shape, Victor adjusted the "beam distance" and  "beam focus" nobs on the device.

Manar Amer wrote:

The pulse duration from the amplifier compressor output will be measured using PulseCheck autocorelator

a first alignment of the device was done, continuation in the afternoon.

YouTube link attached of the general operation of pulse check < 5 min :  https://www.youtube.com/watch?v=J1pNHYySSYg

 

Attachment 1: 20220401_Alphanov_Pulse_Duration.jpg  119 kB  | Hide | Hide all | Show all
20220401_Alphanov_Pulse_Duration.jpg
Attachment 2: 20220408_AMplifier_133MHz_Pulse_duration.jpg  77 kB  | Show | Hide all | Show all
Attachment 3: 20220408_AMplifier_133MHz_Pulse_duration_better_alignment.jpg  77 kB  | Show | Hide all | Show all
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