Tunable multiwavelength erbium-doped fiber laser based on BPQDs packaged by poly tetra fluoroethylene and two segments of PMF

• Published in: Optics communications 2019-12, Vol.453, p.124349, Article 124349
• Main Authors: Shi, Xutao, Tong, Zhengrong, Zhang, Weihua, Qin, Juan, Pan, Honggang, Sun, Ce
• Format: Article
• Language: English
• Subjects: Black phosphorus quantum dots; Multiwavelength erbium-doped fiber laser; Tunable; Two sections of polarization maintaining fiber
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2019.124349

Two types of tunable and stable multiwavelength erbium-doped fiber lasers(MWEDFLs) are proposed and experimentally demonstrated, which are based on novel poly tetra fluoroethylene packaging device of black phosphorus quantum dots (PTFEPD-BPQDs) and two sections of polarization maintaining fiber(PMF) in cascade/in parallel. The novel fabrication process uses silica capillaries and PTFE to package BPQDs. The PTFEPD-BPQDs has the function of suppressing the mode competition and stabilizing the multiwavelength output. The channel space and wavelength number of the two types of tunable MWEDFLs can be tuned by adjusting polarization controllers(PCs). In the experiments, for the unpackaged BPQDs device, BPQDs will degrade and lose its function within 48 h, while for the PTFEPD-BPQDs, BPQDs can keep its function for more than 3 weeks. By adjusting the PC, in the cascaded structure, the multiwavelength channel spacing can be tuned among nearly 1.98, 0.67 and 0.43 nm, and the number of multiwavelength output is 4, 9 and 13, respectively. •Two types of tunable lasers based on novel packaging device of BPQDs are proposed.•The novel packaging device can keep the function of BP for more than 3 weeks.•The channel spacing and wavelength number of two types of lasers can be tuned.•Three kinds of wavelength spacing and number are realized in cascade structure.