Download Deployable Stable Lasers for Gravitational Wave Interferometers

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APPENDIX I. 10 W INJECTION-LOCKED LASER MANUAL
6.2 INTERLOCK CONTROLLER
FAULT RESET: To clear any faults indicated by the orange FAULT STATUS
LED’s, press the toggle switch down once. If a fault remains, then there is a
fault that needs to be addressed. Only once all faults have been cleared can
each of the NEWPORT LASER DIODE DRIVER, DIODE TEC POWER
SUPPLY and RESONATOR TEC POWER SUPPLY be operated.
FAULT STATUS LED’s: Indicate that a fault needs to be addressed.
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DIODE TEMP: Indicates that the temperature of the Diode Laser
copper block is outside its operating temperature range.
Operation range: 12 0C - 45 0C
RESONATOR TEMP: Indicates that the temperature of the resonator
(or slab) is outside its operating temperature range.
Operation range: 12 0C - 45 0C
BASE TEMP: Indicates that the temperature of the air-cooled laser
base is outside its operating range.
Operation range: 12 0C - 50 0C
REMOTE: This indicates that the remote switch has been triggered.
Such a remote trigger could be a Reed switch on a door to an
enclosure or similar.
These faults can only be cleared once the Diode/Resonator/Base are within
their operating temperature range, or once the remote trigger has been reset.
Depending on the fault, the INTERLOCK CONTROLLER makes a decision
about which modules should be shut down. This means that all three units will
not necessarily be shut down when a fault is detected, only those directly
affected.
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