Wavelength-tunable Er3+-doped fs mode-locked fiber laser using fundamental mode cutoff filters. - Nan-Kuang Chen; Kuei-Chu Hsu; Jim-Wein Lin; Shien-Kuei Liaw; Feng-Zhou Liu; Yi-Ning Chen; Jui-Ming Hsu; Alina Manshina; Yuriy Tver'yanovic (ICUMT, 2010)