A diode-pumped, far-off-resonance cw Raman laser in H<sub>2</sub> with rotational Stokes emission is reported for the first time to our knowledge. The Raman laser can produce single-wavelength emission at either 830 nm (rotational Stokes) or 1180 nm (vibrational Stokes) depending on the frequency tuning of the pump laser. The mirrors for the rotational cw Raman laser are easier to produce; the laser also exhibits a wider continuous tuning range and is less sensitive to thermal effects than the previously studied vibrational Raman laser [Opt. Lett. <b>26</b>, 426 (2001) and references therein].
© 2002 Optical Society of America
(140.3410) Lasers and laser optics : Laser resonators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3550) Lasers and laser optics : Lasers, Raman
(140.3600) Lasers and laser optics : Lasers, tunable
(290.5910) Scattering : Scattering, stimulated Raman
Lei S. Meng, Peter A. Roos, and John L. Carlsten, "Continuous-wave rotational Raman laser in H2," Opt. Lett. 27, 1226-1228 (2002)