58th Fujihara seminar 1 Laser system Laser system for LCGT for LCGT Norikatsu Mio* and Noriaki Ohmae* and t Norikatsu Mio* and Noriaki Ohmae* and t he LCGT collaboration he LCGT collaboration *Department of Advanced Materials Scien *Department of Advanced Materials Scien ce, University of Tokyo ce, University of Tokyo
Laser system for LCGT. Norikatsu Mio* and Noriaki Ohmae* and the LCGT collaboration *Department of Advanced Materials Science, University of Tokyo. Outline. Power requirement for laser system of LCGT Design of the laser system Development of the prototype system Injection locked laser - PowerPoint PPT Presentation
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
58th Fujihara seminar 1
Laser system Laser system for LCGTfor LCGT
Norikatsu Mio* and Noriaki Ohmae* and the LCGT coNorikatsu Mio* and Noriaki Ohmae* and the LCGT collaborationllaboration
*Department of Advanced Materials Science, Univers*Department of Advanced Materials Science, University of Tokyoity of Tokyo
58th Fujihara seminar 2
OutlineOutline• Power requirement for laser system
of LCGT• Design of the laser system• Development of the prototype
system– Injection locked laser– Stabilization system
• Summary
58th Fujihara seminar 3
Power requirement for laser Power requirement for laser system of LCGT system of LCGT
780 W
G=11
75 W150 W
50 %
Laser
58th Fujihara seminar 4
Laser system of LCGTLaser system of LCGT
2W
Plan of a Pre-Stabilized Laser System for LCGT
NPROFI FI
EOM
Piezoelectric transducer
PD
Slave Laser (Injection Locking)
100W
FIFI
EOM
MOPAPre-Mode Cleaner
170WWideband EOM
Frequency Stabilization
to crystal temperature (< 1 Hz)to piezoelectric transducer (1 Hz - 10 kHz)
to wideband EOM(10 kHz - 1MHz)
Intensity Stabilizationto current control
58th Fujihara seminar 5
Design conceptDesign concept• Injection-locked laser: Clean and
Stable optical mode
• Power amplifier: Easy operation, possible expansion for higher power operation