title: Improved multiple-wavelength Brillouin-Raman fiber laser assisted by four-wave mixing with a micro-air cavity.
abstract: In this paper, a multiple-wavelength Brillouin-Raman fiber laser (MBRFL) with enhanced performance is presented. This is attributed to the improved Fresnel reflection, thus strengthening four-wave mixing in the fiber laser cavity due to the insertion of a micro-air cavity. As a result, compared with the conventional MBRFL without a micro-air cavity, the thresholds of Brillouin Stokes (BS) lines are observed to be reduced, and more BS lines can be generated. In the experiment, a MBRFL having 40 BS lines is achieved with good stability on laser wavelengths and output power. In view of the fact that more BS lines can be established with a simple scheme and low pump power, our MBRFL promises to be employed as a multiwavelength source for optical communication.
authors.forename: Xuejiao
authors.initials: X
authors.lastname: Li
authors.forename: Liyong
authors.initials: L
authors.lastname: Ren
authors.forename: Xiao
authors.initials: X
authors.lastname: Lin
authors.forename: Haijuan
authors.initials: H
authors.lastname: Ju
authors.forename: Nana
authors.initials: N
authors.lastname: Chen
authors.forename: Jian
authors.initials: J
authors.lastname: Liang
authors.forename: Kaili
authors.initials: K
authors.lastname: Ren
authors.forename: Yiping
authors.initials: Y
authors.lastname: Xu