Developments of the light source for DECIGO and DPF

Abstract

We have developed the light source for the space gravitational wave detector, DECIGO, and its pathfinder, DPF. The frequency stability of the 1 Hz/Hz1/2 at Fourier frequency around 1Hz, and output power of 10W are required as the light source for DECIGO. We will report the breadboard model of the frequency-stabilized Yb:YAG laser for DPF whose frequency is stabilized in reference to the saturated absorption of iodine molecules around 515nm, and the fiberMOPA system for DECIGO.