Zheyuan Zhang, Xiangbao Bu, Daiki Okazaki, Wenqing Song, Ikki Morichika, Satoshi Ashihara. "Tunable mode-locked laser in the 2.0–2.6 <b>
                     <i>μ</i>
                  </b>m range with GHz-level spectral width and sub-nanosecond pulse duration." Applied Physics Letters, 2025. doi:10.1063/5.0249138