Distributed ultrafast fibre laser.

Distributed ultrafast fibre laser.
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分布式超快光纤激光器

DOI:
10.1038/srep09101
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发表时间:
2015-03-13
期刊:
影响因子:
4.6
通讯作者:
Sun Z
Sun Z
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Liu X;Cui Y;Han D;Yao X;Sun Z

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传统的超快光纤激光器具有与脉冲波长无关的恒定腔长。分布式超快(DUF)激光器的研究在概念上和技术上都是具有挑战性的,并且具有很大的兴趣,因为激光器的腔长和基本腔频率基于波长是可变的。在这里,我们提出并证明了DUF光纤激光器的基础上线性啁啾光纤布拉格光栅,其中的总腔长是线性变化的脉冲波长的函数。DUF激光器中的光谱边带大大增强,包括连续波(CW)和脉冲分量。我们观察到,脉冲的所有边带经历相同的往返时间,尽管它们具有不同的往返距离和折射率。DUF激光器的脉冲整形除了相位调制外,还受耗散过程的控制,这使得我们的超快激光器简单而稳定。该激光器提供了一种简单、稳定、低成本、腔频可控可变的超快脉冲光源。
A traditional ultrafast fibre laser has a constant cavity length that is independent of the pulse wavelength. The investigation of distributed ultrafast (DUF) lasers is conceptually and technically challenging and of great interest because the laser cavity length and fundamental cavity frequency are changeable based on the wavelength. Here, we propose and demonstrate a DUF fibre laser based on a linearly chirped fibre Bragg grating, where the total cavity length is linearly changeable as a function of the pulse wavelength. The spectral sidebands in DUF lasers are enhanced greatly, including the continuous-wave (CW) and pulse components. We observe that all sidebands of the pulse experience the same round-trip time although they have different round-trip distances and refractive indices. The pulse-shaping of the DUF laser is dominated by the dissipative processes in addition to the phase modulations, which makes our ultrafast laser simple and stable. This laser provides a simple, stable, low-cost, ultrafast-pulsed source with controllable and changeable cavity frequency.
DOI: 10.1364/ol.13.000056
发表时间: 1988-01-01
期刊: OPTICS LETTERS
影响因子: 3.6
作者:
DORAN, NJ;WOOD, D
通讯作者: WOOD, D
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期刊: OPTICS LETTERS
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影响因子: 16.6
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DOI: 10.1364/oe.17.022401
发表时间: 2009-12-07
期刊: OPTICS EXPRESS
影响因子: 3.8
作者:
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通讯作者: Liu, Xueming