Difference between revisions of "February 11, 2015 - CIS Group Meeting"
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==Startup Tasks== | ==Startup Tasks== | ||
| − | Laser Program | + | '''Laser Program''' |
| − | + | :A = 50uA @ 125 MHz or 100uA @ 250 MHz | |
| − | + | :B = 499 | |
| − | + | :C = 250 | |
| − | Laser | + | '''Laser setup''' |
| − | :: | + | :No spare amps, 4-6 weeks from IPG for two replacement amps |
| + | :Replace 2m (FWHM~1mm) spot lens with 1.5m (FWHM~0.4mm) lens | ||
| − | Phase flip | + | '''Phase flip''' |
| − | + | :Make divider box less sensitive to EMI? | |
| − | + | :Phase monitoring to keep phases between 3 lasers | |
| − | + | :Analog gain switching at 250 MHz | |
| − | + | '''Change the laser phase''' | |
| − | + | :When we change the frequency use 0I04 viewer to check/set phase | |
| − | + | :Command line EPICS control sufficient now, Mike Johnson still working it | |
| + | :Tomas can provide a ~2ns delay cable | ||
| + | :John can DAC control a phase delay ~2ns | ||
| − | + | '''To Do''' | |
| + | :We will learn at separators if we need to add a phase delay | ||
| + | :We will decide by summer time a final system configuration | ||
| + | |||
| + | :RTI testing | ||
Revision as of 11:07, 11 February 2015
Startup Tasks
Laser Program
- A = 50uA @ 125 MHz or 100uA @ 250 MHz
- B = 499
- C = 250
Laser setup
- No spare amps, 4-6 weeks from IPG for two replacement amps
- Replace 2m (FWHM~1mm) spot lens with 1.5m (FWHM~0.4mm) lens
Phase flip
- Make divider box less sensitive to EMI?
- Phase monitoring to keep phases between 3 lasers
- Analog gain switching at 250 MHz
Change the laser phase
- When we change the frequency use 0I04 viewer to check/set phase
- Command line EPICS control sufficient now, Mike Johnson still working it
- Tomas can provide a ~2ns delay cable
- John can DAC control a phase delay ~2ns
To Do
- We will learn at separators if we need to add a phase delay
- We will decide by summer time a final system configuration
- RTI testing