Title :
Laser power stabilization in the TRIUMF optically pumped polarized H- ion source
Author_Institution :
SSC Lab., Dallas, TX, USA
Abstract :
Power stabilization of the lasers, used in the TRIUMF optically pumped polarized ion source prior to 1991, was crucial to maintaining the laser wavelength and hence nuclear polarization. Output power of the dye lasers was dependent on a number of variables, including the relative drift between the transmission peaks of the birefringent filter and the etalon used to tune each dye laser. The power control system used a program running in a CAMAC crate based PC/AT to control the birefringent filter. Heuristic algorithms implemented to control power and their performance in the steady state and the wavelength shifting modes are described
Keywords :
dye lasers; ion sources; optical pumping; physical instrumentation control; power control; H; H- source; TRIUMF; birefringent filter; dye lasers; etalon; heuristic algorithms; laser power stabilization; laser wavelength; optically pumped polarized ion source; output power; steady state; wavelength shifting; Birefringence; Laser excitation; Laser stability; Laser tuning; Optical filters; Optical polarization; Optical pumping; Particle beam optics; Power lasers; Pump lasers;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309177
