Abstract
Abstract
We present an all–fiber polarization-maintaining system, which consists of an ultralow-intensity-noise picosecond Yb mode-locked fiber oscillator, a Yb-doped fiber amplifier and a noise suppressor based on nonlinear optical loop mirror. After amplification and noise suppression, the optical power is as high as 190 mW, and the relative intensity noise (RIN) measured at an optical power of 30 mW is as low as −161.4 dB Hz−1, which is only 0.3 dB higher than the RIN of the oscillator. We also investigated the temperature dependence of the noise suppression performance, which suggests that guided acoustic-wave Brillouin scattering is one of the factors that limit the performance of the noise suppressor.
Funder
Ministry of Education, Culture, Sports, Science and Technology
Core Research for Evolutional Science and Technology
Japan Society for the Promotion of Science
Subject
General Physics and Astronomy,Physics and Astronomy (miscellaneous),General Engineering