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
       
(a) Time-domain output trace of the swept QD laser under 1000-mA injection current at the 12-kHz sweep rate and (b) light peak power–injection current curves of the swept QD laser at 6, 12, 24, and 33 kHz sweep rates.