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Entry   OEwaves CW Laser - Phase Noise , posted by Manar Amer at Optical room about lasers and optics | detectors and electronics 20210207_OEwaves_laser.jpg20210207_Self_coupling_setup.jpgSchematic-setup-for-optical-delayed-self-coupling-detection.png
    Reply   OEwaves CW Laser - Phase Noise , posted by Manar Amer at Optical room about lasers and optics | detectors and electronics 
       Reply   OEwaves CW Laser - Phase Noise , posted by Manar Amer at Optical room about lasers and optics | detectors and electronics 
Message ID: 65     Entry time: Mon Jul 5 14:40:57 2021     In reply to: 64     Reply to this: 66
 Author: Manar Amer 
 Status: Fixed 
 Type: report 
 Category: lasers and optics | detectors and electronics 
 Location: Optical room 
 Title: OEwaves CW Laser - Phase Noise  

a correction on the wavelength of the laser  it is 1030 um 

Manar Amer wrote:
  • We started measuring the phase noise on the OEwaves CW laser.
    • Class 3b
    • wavelength 1.5 um
  • The procedure is done using self coupling of the laser
    • splitter 50%-50%\
    • delay line 100 m 
    • all fibers are PM type (polarity maintained)
    • Photodetector is "lab buddy", very fast diode.
    • Note: différance from schematic (we did not use a low pass filter)

 

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