[14p-B408-1~16] 3.1 Basic optics and frontier of optics

△ [14p-B408-3] Development of self-resonating optical cavity operating in single longitudinal mode

〇Yuuki Uesugi¹, Alexander Aryshev², Junji Urakawa², Tsunehiko Omori², Nobuhiro Terunuma², Masafumi Fukuda², Seiya Otsuka³, Yuya Koshiba³, Masakazu Washio³, Tohru Takahashi⁴, Yuji Hosaka⁵ (1.Tohoku Univ., 2.KEK, 3.Waseda Univ., 4.Hiroshima Univ., 5.QST)

Keywords:Optical cavity, Enhancement cavity, Laser-Compton scattering

We has been working on the development of a new scheme of enhanced cavities (ECs) referred to as a a self-resonating scheme, in which the optical system with an EC itself maintains the resonance condition spontaneously. A few years ago, we demonstrated the laser accumulation with the self-resonating scheme in multi longitudinal mode using a fiber amplifier and a passive optical cavity with the high finesse of 394,000. In the talk, we will show the first result of single longitudinal mode operation of the self-resonating EC, and guidelines to achive higher finesse of the EC and stability of laser accumulation to discuss the practicality of this scheme.