WFP, NJ, PG, Thomas, Rasmus, kHz

• Whatsapp alternative
  • Threem?, Signal?
  • A few people will ditch WhatsApp after the new privacy rules are enforced
  • Most people seem not to bother between Threema or Signal
    • Threema: Most IQ people already use it. Fully open-source since Dezember 2020. Has (only) a webclient for PC usage, which makes it very versatile in usage between different PCs.
    • Signal: PC clients for different platforms available. No native web-client yet or even planned! Mg signal group
• Office occupation: Max 2 ppl
  • Waldemar at office
  • Pia/Philipp cycle between office/lab
  • Nandan in ResLab
  • Stevie in his office or at home
• Rasmus
  • Laser driver
    • Coordinate with KMK regarding working hours

• PCF
  • Still only cladding coupling.
  • PTB:
    • Overlaps cladding mode, coupled through from output side with comb light
    • Uses more and more power to get light into core from input side
    • Moving input lense around gives them coupling
  • Waiting for Menlo answer

• L2 setup
  • Two collimaters showed damaged spots
• Fibers also changed for Triplet, since they showed burn marks
  • kHz: When you buy new fibers: Get those with endcaps
• Philipp
  • Laser frequency instability: Changed TEC of laser housing
    • Unfortunately did not help
    • N2 flushing also did not help
    • What about Diode Current and Temperature? → To be measured