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Multi-gigahertz laser generation based on monolithic ridge waveguide and embedded copper nanoparticles [Early Posting]

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摘要

Copper nanoparticles (Cu NPs) are synthesized under the near-surface region of the Nd:YAG crystal by direct Cu+ ions implantation. Subsequently, monolithic ridge waveguide with embedded Cu NPs is fabricated by C4+ ions implantation and diamond saw dicing. Nonlinear optical response of the sample is investigated by Z-scan technique and pronounced saturable absorption is observed at 1030 nm femtosecond laser. Based on the obvious saturable absorption of Cu NPs embedded Nd:YAG crystal, 1 μm monolithic mode-locked pulsed waveguide laser is implemented by evanescent field interaction between NPs and waveguide modes, reaching the pulse duration of 24.8 ps and repetition rate of 7.8 GHz. The work combines waveguides with NPs, achieving pulsed laser devices based on monolithic waveguide chip.

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作者单位:

    Shandong University
    Shandong University
    Shandong University
    本所
    本所
    Wuhan University
    山东大学物理学院

引用该论文

Pang Chi,Li Rang,Li Ziqi,Dong Ningning,Wang Jun,Ren Feng,Chen Feng. Multi-gigahertz laser generation based on monolithic ridge waveguide and embedded copper nanoparticles[J].Chinese Optics Letters,2021,19(2):02.