Abstract

High frequency stabilization of a 2.2-W injection-locked laser-diode-pumped Nd:YAG laser to a high-finesse optical cavity has been realized by frequency control of the master laser. With the help of an external electro-optical modulator, the feedback bandwidth was extended to 1  MHz and the frequency noise relative to the reference cavity was suppressed to 3×10-4 Hz/Hz1/2 below 1  kHz. This feedback laser system is an ideal laser source for gravitational wave detectors, which require both ultralow frequency noise and high output power.

© 1997 Optical Society of America

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