Abstract

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.

© 2024 Optica Publishing Group

Ultrashort pulse generation with an erbium-doped fiber laser ring cavity based on a copper oxide saturable absorber

Sinan Abdulhameed Sadeq, Sulaiman Wadi Harun, and Abdul Hadi Al-Janabi
Appl. Opt. 57(18) 5180-5185 (2018)

Stable Q-switched and femtosecond mode-locked erbium-doped fiber laser based on a CuSe nanosheets saturable absorber

Chongyang Xu, Yunze He, Yifan Chen, Kun Zhang, Xinjie Lv, Jian Ning, Gang Zhao, and Shining Zhu
Opt. Express 32(7) 11509-11521 (2024)

Nanosecond Q-switched laser with PEDOT: PSS saturable absorber

Ahmed Shakir Al-Hiti, Moh Yasin, and Sulaiman Wadi Harun
Appl. Opt. 61(6) 1292-1299 (2022)

Third-order harmonic mode-locked and Q-switched Er-doped fiber laser based on a Cr₂Ge₂Te₆ saturable absorber

Xueyao Liu, Nannan Xu, Xinxin Shang, Lin Zhao, Xueyuan Dong, Chao Liu, Huanian Zhang, and Dengwang Li
Appl. Opt. 61(13) 3884-3892 (2022)

Passively mode-locked erbium-doped fiber laser based on a nanodiamond saturable absorber

Aseel A. Shakaty, Jassim K. Hmood, Bushra R. Mahdi, and Sulaiman W. Harun
Appl. Opt. 61(14) 4047-4054 (2022)