title: Multicoherence wavelength generation based on integrated twin-microdisk lasers.
abstract: An effective method for multicoherence wavelength generation is experimentally demonstrated using an integrated twin-microdisk laser as a seeding source. Dual-wavelength lasing with variable wavelength spacing is achieved by adjusting injection currents independently. Using the integrated laser as a pump seed, we obtain multicoherence wavelength in a nonlinear optical fiber, which has a tunable frequency interval from 50 to 300 GHz. Ten waves with optical signal to noise ratio from 28 to 10 dB are produced at the frequency interval of 200 GHz and a pulse width of 1.2 ps. The high extinction ratio of the pulse trace indicates the high coherence in the mode-locked multiwavelength light source.
authors.forename: Hai-Zhong
authors.initials: HZ
authors.lastname: Weng
authors.forename: Yong-Zhen
authors.initials: YZ
authors.lastname: Huang
authors.forename: Jin-Long
authors.initials: JL
authors.lastname: Xiao
authors.forename: Yue-De
authors.initials: YD
authors.lastname: Yang
authors.forename: Xiu-Wen
authors.initials: XW
authors.lastname: Ma
authors.forename: Fu-Li
authors.initials: FL
authors.lastname: Wang
authors.forename: Yun
authors.initials: Y
authors.lastname: Du