Abstract
Covalent-organic frameworks (COFs) are novel materials known for their ordered, crystalline, low-density, and porous structure, making them useful for various applications [1,2]. In this work, a specific polarization-dependent COF named π-electron-extended porphyrin/pyrene-linked COF (PorPh-PyTA-COF) was used as a saturable absorber (SA) for mode-locking operation in the 1.5 μm spectral region. The mode-locked fiber laser was successfully demonstrated by leveraging this polarization dependence and saturable absorption of the COF.
© 2023 IEEE
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