Cladding-filled graphene in a photonic crystal fiber as a saturable absorber and its first application for ultrafast all-fiber laser

Junqing Zhao; Shuangchen Ruan; Peiguang Yan; Han Zhang; Yongqin Yu; Huifeng Wei; Jie Luo

doi:10.1117/1.OE.52.10.106105

10 October 2013 Cladding-filled graphene in a photonic crystal fiber as a saturable absorber and its first application for ultrafast all-fiber laser

Junqing Zhao, Shuangchen Ruan, Peiguang Yan, Han Zhang, Yongqin Yu, Huifeng Wei, Jie Luo

Author Affiliations +

Optical Engineering, Vol. 52, Issue 10, 106105 (October 2013). https://doi.org/10.1117/1.OE.52.10.106105

Abstract

We demonstrate a saturable absorber (SA) based on cladding-filled graphene in a specially designed and manufactured photonic crystal fiber (PCF) for the first time. The saturation absorption property is achieved through the evanescent coupling between the guided light and the cladding-filled graphene layers. To boost the mutual interaction, the PCF is designed to contain five large air holes in the cladding and small-core region. Employing this graphene-PCF SA device, we construct an erbium-doped all-fiber laser oscillator and achieve mode-locked operation. This device can pave the way for high power and all-fiber applications of photonics with graphene with some unique advantages, such as single-mode operation, nonlinearity enhancement, high-power tolerance, environmental robustness, all-fiber configuration, and easy fabrication.

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Junqing Zhao, Shuangchen Ruan, Peiguang Yan, Han Zhang, Yongqin Yu, Huifeng Wei, and Jie Luo "Cladding-filled graphene in a photonic crystal fiber as a saturable absorber and its first application for ultrafast all-fiber laser," Optical Engineering 52(10), 106105 (10 October 2013). https://doi.org/10.1117/1.OE.52.10.106105

Published: 10 October 2013

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