[17a-P02-1~6] 3.5 Laser system and materials

[17a-P02-4] Broadband mid-infrared amplified spontaneous emission source with a simple diode-pumped configuration

〇Hiyori Uehara¹, Kenji Goya², Shigei Tokita³, Ryo Yasuhara¹, Yoshiaki Nishijima⁴, Tetsuo Kishi⁵, Setsuhisa Tanabe⁶ (1.NIFS, 2.Akita Pref. Univ., 3.Osaka Univ., 4.Yokohama Natl. Univ., 5.Tokyo Inst. Tech., 6.Kyoto Univ.)

Keywords:mid-infrared, amplified spontaneous emission source, fiber lasers

Er³⁺/Dy³⁺ co-doped double-clad fluoride fiber has been used to obtain amplified spontaneous emission (ASE) broadband light source cladding-pumped by 976-nm multimode laser diode. It has been demonstrated that mid-infrared broadband emission extending from 2515 to 3735 nm was obtained by energy transfer between Er³⁺ and Dy³⁺. The simple and stable construction of our ASE light source is suitable for practical purposes.