High power passive mode-locked L-band fiber laser based on microfiber topological insulator saturable absorber

Georges Semaan; Yichang Meng; Mohamed Salhi; Alioune Niang; Khmaies Guesmi; Zhi-Chao Luo; Francois Sanchez

doi:10.1117/12.2224945

27 April 2016 High power passive mode-locked L-band fiber laser based on microfiber topological insulator saturable absorber

Georges Semaan, Yichang Meng, Mohamed Salhi, Alioune Niang, Khmaies Guesmi, Zhi-Chao Luo, Francois Sanchez

Author Affiliations +

Proceedings Volume 9893, Laser Sources and Applications III; 98930R (2016) https://doi.org/10.1117/12.2224945
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

In this communication, we demonstrate a passive mode-locked Er:Yb co-doped double-clad fiber laser using a tapered microfiber topological insulator (Bi₂Se₃) saturable absorber (TISA). The topological insulator is drop-casted onto the tapered fiber and optically deposited by optical tweezer effect. We use a ring laser setup including the fabricated TISA. By carefully optimizing the cavity losses and output coupling ratio, the mode-locked laser can operate in L-band with a high average output power. At a maximum pump power of 5 W, we obtain the 91^st harmonic mode-locking of soliton bunches with a 3dB spectral bandwidth of 1.06nm, a repetition rate of 640.9 MHz and an average output power of 308mW. As far as we know, this is the highest output power yet reported of a mode-locked fiber laser operating with a TISA.

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Georges Semaan, Yichang Meng, Mohamed Salhi, Alioune Niang, Khmaies Guesmi, Zhi-Chao Luo, and Francois Sanchez "High power passive mode-locked L-band fiber laser based on microfiber topological insulator saturable absorber", Proc. SPIE 9893, Laser Sources and Applications III, 98930R (27 April 2016); https://doi.org/10.1117/12.2224945

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