ERL2011 - List of Authors (Nakamura, S.)

Paper	Title	Page
PSP020	Recent Progress of an Yb-doped Fiber Laser System for an ERL-based Light Source	137
	I. Ito ISSP/SRL, Chiba, Japan R.K. Kasahara, S. Nakamura Ibaraki University, Hitachi, Ibaraki, Japan N. Nakamura KEK, Ibaraki, Japan K. Torizuka, D. Yoshitomi AIST, Tsukuba, Japan
	We have been developing an Yb fiber laser system for an ERL photocathode gun. The Yb fiber laser system is expected to have both high stability and high output power required for the drive laser. We have improved the output power of Yb fiber laser system up to 31 W at 85 MHz by installing a preamplifier, and demonstrated wavelength conversion from 1 μm to 800 nm with a conversion efficiency of 9.5% by generating a supercontinuum light, which is planned to be amplified by optical parametric amplification(OPA) in future. In addition, we are developing a Nd:YVO4-based mode-locked oscillator that can operate at the same frequency as the RF frequency of a superconducting accelerating cavity. We report our recent progress in this development.

Paper

Title

Page

Recent Progress of an Yb-doped Fiber Laser System for an ERL-based Light Source

137

I. Ito
ISSP/SRL, Chiba, Japan
R.K. Kasahara, S. Nakamura
Ibaraki University, Hitachi, Ibaraki, Japan
N. Nakamura
KEK, Ibaraki, Japan
K. Torizuka, D. Yoshitomi
AIST, Tsukuba, Japan

We have been developing an Yb fiber laser system for an ERL photocathode gun. The Yb fiber laser system is expected to have both high stability and high output power required for the drive laser. We have improved the output power of Yb fiber laser system up to 31 W at 85 MHz by installing a preamplifier, and demonstrated wavelength conversion from 1 μm to 800 nm with a conversion efficiency of 9.5% by generating a supercontinuum light, which is planned to be amplified by optical parametric amplification(OPA) in future. In addition, we are developing a Nd:YVO4-based mode-locked oscillator that can operate at the same frequency as the RF frequency of a superconducting accelerating cavity. We report our recent progress in this development.