Broadband and high-speed swept external-cavity laser using a quantum-dot superluminescent diode as gain device
Hu Fa-Jie, Jin Peng†, Wu Yan-Hua, Wang Fei-Fei, Wei Heng, Wang Zhan-Guo
       
Spectra of EC swept QD laser (a) at different injection levels at the 12-kHz sweep rate and (b) with different sweep rates under 1000-mA injection current.