Abstract
We report a continuous-wave highly-coherent and tunable dual-frequency laser emitting at two frequencies separated by 30 GHz to 3 THz, based on compact III–V diode-pumped quantum-well surface-emitting semiconductor laser technology. The concept is based on the stable simultaneous operation of two Laguerre–Gauss transverse modes in a single-axis short cavity, using an integrated sub-wavelength-thick metallic mask. Simultaneous operation is demonstrated theoretically and experimentally by recording intensity noises and beat frequency, and time-resolved optical spectra. We demonstrated a output power, diffraction-limited beam, narrow linewidth of , linear polarization state (), and low intensity noise class-A dynamics of rms, thus opening the path to a compact low-cost coherent GHz to THz source development.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
M. Sellahi, M. Myara, G. Beaudoin, I. Sagnes, and A. Garnache
Opt. Lett. 40(18) 4301-4304 (2015)
Cherry May N. Mateo, Uwe Brauch, Hermann Kahle, Thomas Schwarzbäck, Michael Jetter, Marwan Abdou Ahmed, Peter Michler, and Thomas Graf
Opt. Lett. 41(6) 1245-1248 (2016)
Trivikramarao Gavara, Takeru Ohashi, Yusuke Sasaki, Takuya Kawashima, Hiroaki Hamano, Ryo Yoshizaki, Yuki Fujimura, Kazumichi Yoshii, Chiaki Ohae, and Masayuki Katsuragawa
Opt. Lett. 41(13) 2994-2997 (2016)