Soliton compression of the erbium-doped fiber laser weakly started mode-locking by nanoscale p-type Bi_2Te_3 topological insulator particles


          

刊名：Laser Physics Letters
作者：Yung-Hsiang Lin（Graduate Institute of Photonics and Optoelectronics, National Taiwan University）
Chun-Yu Yang（Graduate Institute of Photonics and Optoelectronics, National Taiwan University）
Sheng-Feng Lin（Graduate Institute of Photonics and Optoelectronics, National Taiwan University）
Wei-Hsuan Tseng（Graduate Institute of Photonics and Optoelectronics, National Taiwan University）
Qiaoliang Bao（Institute of Functional Nano & Soft Materials, Soochow University）
Chih-I. Wu（Graduate Institute of Photonics and Optoelectronics, National Taiwan University）
Gong-Ru Lin（Graduate Institute of Photonics and Optoelectronics, National Taiwan University）
刊号：537C0020
ISSN：1612-2011
出版年：2014
年卷期：2014, vol.11, no.5
页码：055107-1--055107-7
总页数：7
分类号：TN241
关键词：Bi_2Te_3；Topological insulator；Nano-particle；Mode-locking；Soliton；Compression；Fiber laser
参考中译：
语种：eng
文摘：We demonstrate the nanoscale p-type Bi_2Te_3 powder-based saturable absorber-induced passive mode-locking of the erbium-doped fiber laser (EDFL) with sub-picosecond pulsewidth. Such a nanoscale topological insulator powder is obtained by polishing the bulk p-type Bi_2Te_3 in a commercial thermoelectric cooler (TE cooler). This is then directly brushed onto the end-face of a single-mode fiber patchcord, to avoid any mis-connecting loss caused by laser beam divergence, which can result in a mode-locked pulsewidth of 436fs in the self-amplitude modulation mode of a TE cooler. To further shorten the pulse, the soliton compression is operated by well-controlling the group delay dispersion and self-phase modulation, providing the passively mode-locked EDFL with a pulsewidth as short as 403 fs.



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