All-fiberized, mode-locked laser at 1.95 μm using copper chalcogenide Cu2Te-based evanescent field interaction

OPTICS COMMUNICATIONS

卷:476

Article

Ahmad, H.^1,2  Aidit, S. N.¹  Yusoff, N.¹  Ismail, N. N.¹  Ismail, M. F.¹  Zamzuri, A. K.³  Thambiratnam, K.¹ 

[1] Univ Malaya, Photon Res Ctr, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Phys Dept, Fac Sci, Kuala Lumpur 50603, Malaysia

[3] Int Islamic Univ Malaysia, Dept Phys, Kulliyyah Sci, Kuantan 25200, Pahang, Malaysia

关键词: Copper chalcogenide;    Saturable absorber;    Mode-locked;    Thulium;    Fiber laser;   

DOI  :  10.1016/j.optcom.2020.126329

来源: Elsevier

【 摘 要 】

For the first time, a copper telluride (Cu2Te) based saturable absorber (SA) was demonstrated for mode-locking in a thulium-doped fiber laser. Layers of Cu2Te were deposited onto a side polished fiber (SPF) using the optical deposition technique, forming an all-fiber SA device. The nonlinear optical properties of the SA device were investigated based on the balanced twin-detector measurement scheme. The Cu2Te-deposited SPF SA was capable of generating stable soliton mode-locked pulses with a pulse duration of 1.58 ps at a center wavelength of 1951 nm with a signal to noise ratio (SNR) of more than 60 dB, as well as a peak power of 250 mW and a pulse energy of 0.39 nJ.

【 授权许可】

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