Difference between revisions of "Laser 606"

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===Dye===
 
===Dye===
 
Tekhnoscan DYE-SF-077
 
Tekhnoscan DYE-SF-077
 +
While in principle laser should meet the criteria for Pr:YSO experiment, in practice few problems raised, that limits the functionality:
 +
# The laser optomechanics is in band shape, that results in cross-coupling between screws for orthogonal degrees of freedom.
 +
# Long term power drift occurs. Over an hours the power is reduced by 20-30%. The exact reason is unknown. The thoughts are
 +
##  thermal drift of the MP1-2 or/and MP3 mirror 
 +
## one's of the mirror spring unclenches
 +
# Long term stabilization to the cavity was problematic
  
 
===Solid lasers===
 
===Solid lasers===

Revision as of 07:54, 26 July 2021

Introduction

Dye

Tekhnoscan DYE-SF-077 While in principle laser should meet the criteria for Pr:YSO experiment, in practice few problems raised, that limits the functionality:

  1. The laser optomechanics is in band shape, that results in cross-coupling between screws for orthogonal degrees of freedom.
  2. Long term power drift occurs. Over an hours the power is reduced by 20-30%. The exact reason is unknown. The thoughts are
    1. thermal drift of the MP1-2 or/and MP3 mirror
    2. one's of the mirror spring unclenches
  3. Long term stabilization to the cavity was problematic

Solid lasers

  1. Toptica For 606nm, a TA-SHG system is, indeed, the best option. We could provide >500mW of output power (before fiber coupling) at 606nm with 50kHz linewidth and 10GHz of mode-hop-free tuning. The base system is priced around $125-150k. This includes the low-noise digital controller, stable master ECDL, TA, Resonant SHG stage, and training and installation.
  1. mpbc They sell under category single frequency lasers, which would consist of Raman fiber amplifier and a frequency doubler. We need to get our own seed at 1212nm in order to get 606nm output. They say that amplification options are 1W or 2W, with as little as 40 mW of seed. The frequency stabilization would be done by stabilizing the seed. The price is in the range 60-70k$, and manufacturing times are 16-18 weeks.