Abstract
For the detection of gravitational wave using Michelson-type interferometers a strain sensitivity of at least 10-21 is desired. To reach this sensitivity, the lasers light source has to work at high power levels in single-frequency operation (tens of Watts) with excellent frequency stability (FM-noise <3.107 Hz/√VHz), and intensity noise as close as possible to the quantum noise limit. Beyond that, the lifetime of these systems must be in the range of several 10,000h at low operational costs.
© 1996 Optical Society of America
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