In-fiber microchannel device filled with a carbon nanotube dispersion for passive mode-lock lasing
In-fiber microchannel device filled with a carbon nanotube dispersion for passive mode-lock lasing
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DOI：
10.1364/oe.16.015425
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发表时间：
2008-09-29
期刊：
影响因子：
3.8
通讯作者：
Yamashita, Shinji
中科院分区：
文献类型：
--
作者：
Martinez, Amos;Zhou, Kaiming;Yamashita, Shinji
由于其高三阶非线性和非线性饱和吸收特性，碳纳米管有望成为下一代光子器件（如全光开关和无源锁模激光器）的重要组成部分。然而，为了满足这一期望，有必要确定一个合适的平台，允许有效地利用碳纳米管的光学性质。在本文中，我们提出并实现了一种由充满碳纳米管分散体的光流器件组成的新型器件。通过在传统纤维的核心上制造一个微通道，并在其中填充二甲甲酰胺（DMF）上的碳纳米管均匀溶液，实现了紧凑的全纤维饱和吸收器。微流控通道的制备分为飞秒激光微加工和激光修饰区域的化学蚀刻两步。实现了全光纤高能无源锁模激光，输出功率为13.5 dBm。该器件的主要特点是紧凑性和抗光学、机械和热损伤的坚固性。(C) 2008美国光学学会
Fueled by their high third-order nonlinearity and nonlinear saturable absorption, carbon nanotubes (CNT) are expected to become an integral part of next-generation photonic devices such as all-optical switches and passive mode-locked lasers. However, in order to fulfill this expectation it is necessary to identify a suitable platform that allows the efficient use of the optical properties of CNT. In this paper, we propose and implement a novel device consisting of an optofluidic device filled with a dispersion of CNT. By fabricating a microchannel through the core of a conventional fiber and filling it with a homogeneous solution of CNTs on Dimethylformamide (DMF), a compact, all-fiber saturable absorber is realized. The fabrication of the micro-fluidic channel is a two-step process that involves femtosecond laser micro-fabrication and chemical etching of the laser-modified regions. All-fiber high-energy, passive mode-locked lasing is demonstrated with an output power of 13.5 dBm. The key characteristics of the device are compactness and robustness against optical, mechanical and thermal damage. (C) 2008 Optical Society of America