title: Bimodal-sized quantum dots for broad spectral bandwidth emitter.
abstract: In this work, a high-power and broadband superluminescent diode (SLD) is achieved utilizing bimodal-sized quantum dots (QDs) as active materials. The device exhibits a 3 dB bandwidth of 178.8 nm with output power of 1.3 mW under continuous-wave (CW) conditions. Preliminary discussion attributes the spectra behavior of the device to carrier transfer between small dot ensemble and large dot ensemble. Our result provides a new possibility to further broadening the spectral bandwidth and improving the CW output power of QD-SLDs.
authors.forename: Yinli
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Yongqiang
authors.initials: Y
authors.lastname: Ning
authors.forename: Yugang
authors.initials: Y
authors.lastname: Zeng
authors.forename: Jianwei
authors.initials: J
authors.lastname: Zhang
authors.forename: Xing
authors.initials: X
authors.lastname: Zhang
authors.forename: Li
authors.initials: L
authors.lastname: Qin
authors.forename: Lijun
authors.initials: L
authors.lastname: Wang