Lab Book PrYSiO

To do list:

1. Dye laser
   1. increase output laser power
   2. is it stably locked?
   3. better dye? rhodamine b with methanol solvent.
2. Kazakhstan package
   1. receive
   2. check
   3. overview
3. Homodyne
   1. test detectors
   2. shot noise to electronic noise ratio
   3. extinction ratio
4. Red pitaya
   1. check potentiometer
   2. run DDS
5. PWR spply control
6. scheme layout
7. cryostat
   1. remove magnets
   2. leakage detection
   3. install it back
8. buy gloves
9. Hall detector
   1. etch schemes
   2. order chip
10. Test EOM

11 October 2019

• Muhamed
• Barry
• solder PD
• align interferometer
• try scanning EOM
• 13mm drill bit

10 October 2019

• Produced the first Homodyne holder for detectors
• Mansur increased laser power to 230 mW
• Ian Miller responded that production will take two more weeks
• PDH circuit is in Kazan

9 October 2019

• Received laser generation with EOM installed
• Mansur increased ouput power to 120 mW

8 October 2019

• Aligned two fibers to couple HeNe laser into the dye laser

7 October 2019

• test detectors (homodyne)
• install EOM
• start assembly
• order Hall detectors

4 October 2019

• should buy:
  • SCSL-20 (DS1002-01-20), Панелька однорядная цанговая 20 конт.
  • 3 pin header
• EOM transmits 99%. Horizontally placed transmits H polarization, vertically- V.

3 October 2019

• Laser output power 370 mW
• Started testing EOM

30 September 2019

• install eom
• check laser linewidth
• check Pr sample
• check leakage
• spool the magnets
• check the magnets for quenching
• check external fluctuations of magnetic field
• keep vibrations of cryo in mind
• calibrate magnets with Erbium

28 September 2019

• PCB way responded

27 September 2019

1. Dye laser is tuned to 606 nm, low output power up to 300 mW.