Q-switched and mode-locked fiber laser based on Co-MOFs as saturable absorber

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-02-27 DOI:10.1016/j.optmat.2025.116880

Zefei Ding , Cunguang Zhu , Xiaohui Du , Chenyue Liu , Yuan Zhao , Hongguo Hao , Pengpeng Wang

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引用次数: 0

Abstract

Metal-organic frameworks (MOFs) are porous materials with highly ordered arrangements, which have been widely used in multiple fields due to their unique structure and are regarded as a frontier area in materials science. In this study, we successfully prepared Co-MOFs crystal materials and used the direct coupling method to prepare Co-MOFs saturable absorber (SA). Then, using the balanced two-arm detection device, the modulation depth of Co-MOFs was measured to be 18.83 %. We introduced the same Co-MOFs SA into the resonant cavities of two erbium-doped fiber lasers containing different gain fibers (Er-110 and Er-OFS). In the fiber laser with Er-OFS, we observed stable Q-switched pulse, obtaining a maximum single pulse energy of 44.53 nJ. In the fiber laser with Er-110, stable conventional soliton mode-locking was successfully achieved, generating mode-locked pulses with a central wavelength of 1557.5 nm, a 3 dB bandwidth of 2.95 nm, and a signal-to-noise ratio (SNR) of 61.4 dB. This study demonstrates the potential of Co-MOFs for ultrafast photonics applications and is expected to facilitate further exploration of their nonlinear optical properties.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.