Copper phthalocyanines as a mode-locker in an Er-doped fiber laser

We demonstrate a mode-locked erbium-doped fiber laser (EDFL) utilizing copper phthalocyanines (CuPc) as a saturable absorber (SA) for the first time, to the best of our knowledge. The investigated SA was prepared using a simple, low-cost and straightforward technique, whereby the CuPc powder was emb...

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Bibliographic Details
Published in:Applied optics (2004) 2024-02, Vol.63 (4), p.1015
Main Authors: Al-Asaadi, Sana S H, Salam, Sameer, Azooz, Salam M, Alghamdi, Turki Ali, Diblawe, Abdulkadir Mukhtar, Nizamani, Bilal, Harun, Sulaiman Wadi
Format: Article
Language:English
Subjects:
Copper
Doped fibers
Erbium
Fiber lasers
Frequency spectrum
Mode locking
Polyvinyl alcohol
Pulse duration
Signal to noise ratio
Thin films
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Summary:We demonstrate a mode-locked erbium-doped fiber laser (EDFL) utilizing copper phthalocyanines (CuPc) as a saturable absorber (SA) for the first time, to the best of our knowledge. The investigated SA was prepared using a simple, low-cost and straightforward technique, whereby the CuPc powder was embedded into polyvinyl alcohol (PVA) to form a thin film. The thin film acted as a mode-locker when it was incorporated into the EDFL cavity to produce output pulses at a repetition rate of 1.8 MHz with a pulse duration of 1.98 ps. The frequency spectrum showed a signal-to-noise ratio as high as 55 dB, which indicates the stability of the mode-locking operation. To the best of our knowledge, this is the first work to report using CuPc as a mode-locker.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.509882