[8p-N106-1~11] 3.4 Laser system and materials

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[8p-N106-9] Femtosecond-Direct-Laser-Written Waveguides in Tm:YAG Ceramics

〇Yukihiro Akiyama¹, Kotaro Nakagawa¹, Akihiro Tsunoda², Masato Nakazaki², Yohei Kobayashi¹ (1.ISSP. Univ. Tokyo, 2.JX Advanced Metals Co.)

Keywords:

Waveguide,Thulium,Laser processing

Laser light sources with a wavelength of 2 µm have been attracting attention for their eye-safety and precision processing applications, and high output and high efficiency are required. Tm:YAG ceramics are an excellent gain medium, and in this study, we fabricated clad-type waveguides in 3.0 at.% Tm-doped YAG ceramics by femtosecond laser direct writing and investigated their characteristics.