The dispersion management of passively mode-locked all-fiber lasers based on the Co2+: ZnS-film. (November 2022)

• Record Type: Journal Article
• Authors: Zhu, Yuehong; Zhang, Hong; Wu, Zhujing; Gu, Qiongqiong; Wang, Shutong; Deng, Guoliang; Zhou, Shouhuan
• Is Part Of: Optics & laser technology. Volume 155(2022)
• Publication Date: 2022-11
• Subjects: Co2+:ZnS-film -- Electron beam evaporation technology -- Saturable absorber -- Dispersion management; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2022.108368
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: The method of preparing microfiber-based Co 2+ :ZnS-film SAs is electron beam evaporation technology. The approached passively mode-locked fiber laser exhibits a high stability. The microfiber-based Co 2+ :ZnS-film SAs have a good application in the dispersion management. Abstract: We report on the characteristics of soliton pulses in the passively mode-locked all-fiber lasers containing the microfiber-based Co 2+ :ZnS-film saturable absorbers (SAs) under different average dispersion. The microfiber-based Co 2+ :ZnS-film SAs are fabricated by electron beam evaporation technology. The conventional soliton (CS) centered at 1565 nm with a 3-dB bandwidth of 5 nm is obtained by inserting the film into the laser cavity. The signal-to-noise ratio (SNR) is over 57 dB, which confirms excellent output stability. Via appropriate dispersion management, dissipative soliton (DS) with a 3-dB bandwidth of 28 nm is also obtained. Our results verify that the microfiber-based Co 2+ :ZnS-film SA exhibits excellent optical characteristics in ultra-fast photonics devices.