Title :
Investigation of self-induced distortions of laser radiation in lithium niobate and terbium gallium garnet
Author :
Khazanov, Efim ; Kulagin, O. ; Yoshida, Sigeru ; Reitze, D.
Author_Institution :
Inst. of Appl. Phys., Novgorod, Russia
Abstract :
Summary form only given. Future large-scale interferometric gravitational wave detectors (such as those being developed by LIGO, VIRGO, GEO, TAMA, and ACIGA) will use frequency and amplitude stabilized, high-power (10 W) cw lasers for sensitive readout of the gravitational wave signal. Here, we investigate high-power propagation effects in these optical elements. All of our experiments used a 9-W cw Nd:YAG laser with a well-characterized Gaussian beam profile. High sensitivity measurements of self-induced depolarization and thermal lensing were performed in [001]-orientated terbium gallium garnet (TGG) and MgO doped lithium niobate (LiNbO/sub 3/).
Keywords :
gravitational wave detectors; laser beams; measurement by laser beam; neodymium; solid lasers; thermal blooming; 10 W; 9 W; ACIGA; GEO; LIGO; LiNbO/sub 3/:MgO; MgO doped lithium niobate; TAMA; VIRGO; YAG:Nd; YAl5O12:Nd; [001]-orientated terbium gallium garnet; amplitude stabilized; cw Nd:YAG laser; frequency-stabilized; high sensitivity measurements; high-power cw lasers; large-scale interferometric gravitational wave detectors; laser radiation; lithium niobate; self-induced depolarization; self-induced distortion; terbium gallium garnet; thermal lensing; well-characterized Gaussian beam profile; Frequency; Large-scale systems; Laser beams; Laser noise; Laser stability; Optical distortion; Optical interferometry; Optical propagation; Optical sensors; Thermal lensing;
Conference_Titel :
Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-339-0
DOI :
10.1109/CLEO.1998.676125
