Abstract

We demonstrate the generation of an ultra-widely tunable mid-infrared (6–18 μm) optical vortex output with a moderate pulse energy from a ${\mathrm{AgGaSe}}_2$ difference frequency generator pumped by an optical vortex parametric oscillator. The handedness of the vortex output can be controlled/selected by swapping the lasing frequencies of the signal and idler outputs and rotating the ${\mathrm{AgGaSe}}_2$ crystal by 90 deg.

© 2018 Optical Society of America

Handedness control in a tunable midinfrared (6.0–12.5  μm) vortex laser

Michael-Tomoki Horikawa, Azusa Ogawa, Katsuhiko Miyamoto, Taximaiti Yusufu, and Takashige Omatsu
J. Opt. Soc. Am. B 32(12) 2406-2410 (2015)

Tunable mid-infrared (6.3–12 μm)optical vortex pulse generation

Kenji Furuki, Michael-Tomoki Horikawa, Azusa Ogawa, Katsuhiko Miyamoto, and Takashige Omatsu
Opt. Express 22(21) 26351-26357 (2014)

Widely-tunable vortex output from a singly resonant optical parametric oscillator

Aizitiaili Abulikemu, Taximaiti Yusufu, Roukuya Mamuti, Katsuhiko Miyamoto, and Takashige Omatsu
Opt. Express 23(14) 18338-18344 (2015)

Tunable near-infrared optical vortex parametric laser with versatile orbital angular momentum states

Roukuya Mamuti, Shungo Araki, Shigeki Nishida, Katsuhiko Miyamoto, and Takashige Omatsu
Appl. Opt. 57(34) 10004-10008 (2018)

Handedness control in a 2-μm optical vortex parametric oscillator

Taximaiti Yusufu, Yu Tokizane, Katsuhiko Miyamoto, and Takashige Omatsu
Opt. Express 21(20) 23604-23610 (2013)