LIAN Tian-hong, WANG Shi-yu, LIU Guo-rong, WANG Yi-bin, CAI De-fang, LI Bing-bin, GUO Zhen. 1 W Nd-YAG single-longitudinal-mode ring laser usingacousto-optic modulator[J]. Journal of Applied Optics, 2014, 35(2): 332-335.
Citation: LIAN Tian-hong, WANG Shi-yu, LIU Guo-rong, WANG Yi-bin, CAI De-fang, LI Bing-bin, GUO Zhen. 1 W Nd-YAG single-longitudinal-mode ring laser usingacousto-optic modulator[J]. Journal of Applied Optics, 2014, 35(2): 332-335.

1 W Nd-YAG single-longitudinal-mode ring laser usingacousto-optic modulator

  • Using unidirectional ring resonator is the most promising way to get high power single-longitudinal-mode (SLM) laser output. To enforce the singlelongitudinal-mode ring cavity to operate unidirectionally, a component which can introduce loss difference between the counter-propagating beams in the cavity is necessary. A diode-pumped Nd∶YAG SLM four-mirror rectangle ring laser was experimentally demonstrated. The stability of the cavity was ensured by the thermal of the gain medium, and an intra-cavity acousto-optic modulator was used as the optical diode, which provided different losses on the counterpropagating beams. The beam with larger loss died out in their competition for the gain and hence the unidirectional operation was demonstrated. An SLM output power of 1 W at 1.06 m with a beam quality factor M2 of 1.21 was obtained. The considerable increased output power and compact architecture are especially important for future practical application.
  • loading

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return