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   2nd stage amplifier issue, posted by Ronic Chiche at Optical room about lasers and optics 
    Reply   2nd stage amplifier issue, posted by Ronic Chiche at Optical room about lasers and optics 
       Reply   2nd stage amplifier issue, posted by Ronic Chiche at Optical room about lasers and optics 
Message ID: 33     Entry time: Wed Dec 11 17:13:02 2019     Reply to this: 34
 Author: Ronic Chiche 
 Status: Fixed 
 Type: issue 
 Category: lasers and optics 
 Location: Optical room 
 Title: 2nd stage amplifier issue 

the 2nd stage amplifier needed several hours (4-5h) to reach its nominal power (we look at photodiode level on a scope), instead of the awaited 30 minutes.

could it come from the probable spectrum shifting of the OneFive laser ?
(the power coming from the CVBG, coupled to the fiber, is lower than expected).

ELOG V3.1.4-395e101