HOME SBOX THOMX MINICAV Utilities
SBOX orders SBOX installation SBOX commissioning SBOX control command
  Status of commissioning, report also here plots are reports.  Not logged in ELOG logo
 List  |  Find  |  Login  |  Help 
Entry   KBox Alignment , posted by Manar Amer at Optical room about lasers and optics 7x
    Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics 6x
       Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics Ma1_Ma2_Horizontal_Position_Optimized.pngMa1_Ma2_Vertical_Position_Optimized.pngAfter_M1_diaphram_1m_Saturated_Beam_Optimized.jpgAfter_M2_M1_diaphram_Saturated_Beam_Optimized.jpgAfter_M2_M1_diaphram_Beam_Optimized.jpg
          Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics 
             Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics 9x
                Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics all_mirrorsplaced_after_m2_window.jpg20222704_SBox_alignment.pptx
                   Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics Beating_TM00_SBox_damaged_M1.jpgBeating_HigherOrder_SBox_damaged_M1.jpg
                      Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics M2_alignment_M3_pinhole.jpgM3_alignment_M4_pinhole.jpgM4_alignment_M1_pinhole.jpgBeating_TM00_CW_piezo_drive.jpg
                         Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics Beating00_after_rotatingM2_2.jpg
                            Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics TM00_mode.jpgTM01_mode.jpgTM10_mode.jpg
                               Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics 7x
                                  Reply   SBox Alignment , posted by Manar Amer at Optical room about lasers and optics 
Message ID: 77     Entry time: Mon Apr 25 17:28:29 2022     In reply to: 76     Reply to this: 78
 Author: Manar Amer 
 Status: Fixed 
 Type: report 
 Category: lasers and optics 
 Location: Optical room 
 Title: SBox Alignment  

SBox alignment, using CW laser Koheras power 1 mW

  • Finished M1 and M2 alignment using the diffraction patterns seen on the beam profiler,  the beam fit is not very good ?? (image taken)
  • Positions of Ma1 and Ma2 motors are registered (image taken)
  • Placed Fixed 2 irises at M1 window and M2 window (Image taken while both are closed)
  • Distance between the collimator and beam profiler ~ 2 m
  • Distance between collimator and M1 diaphragm   ~ 1 m
  • Distance between collimator and M2 diaphragm ~ 1.6 m 

 

Manar Amer wrote:

Starting with the alignment of the KBox using CW Koheras.

The size of the CW output from the collimator at 1 meter from is ~ 2.4 mm, to be adjusted with lenses to match the cavity !!! (attached image)

For the 2 alignment mirrors, I am only able to control 3 axes for now (motor issue for the fourth to be fixed !!) , Horizontal and vertical for Ma1 and Horizontal for Ma2(closes to injection window).

Started with only irises placed on both the M1 and M2. Placed a beam profiler at the window behind M2 to observe an output beam.

Motors position for the 3 axes and beam shape and position after M2 attached.

 

Attachment 1: SBox_Setup.jpg  12 kB  | Show | Hide all | Show all
Attachment 2: Ma1_Ma2_Horizontal_Position.png  187 kB  | Hide | Hide all | Show all
Ma1_Ma2_Horizontal_Position.png
Attachment 3: Ma1_Ma2_Vertical_Position.png  185 kB  | Show | Hide all | Show all
Attachment 4: Output_afterM2_Diaghragm_On_M1_M2_Beam.jpg  236 kB  | Show | Hide all | Show all
Attachment 5: Output_afterM2_Diaghragm_On_M1_M2_BeamFit.png  35 kB  | Hide | Hide all | Show all
Output_afterM2_Diaghragm_On_M1_M2_BeamFit.png
Attachment 6: Output_afterM2_Diaghragm_On_M1_M2_Beam_Outside_Irises_Installed_and_Closed.jpg  232 kB  | Hide | Hide all | Show all
Output_afterM2_Diaghragm_On_M1_M2_Beam_Outside_Irises_Installed_and_Closed.jpg
ELOG V3.1.4-395e101