Stress-Induced Versatile Tunable Long-Period Gratings in Photonic Crystal Fibers

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Title:	Stress-Induced Versatile Tunable Long-Period Gratings in Photonic Crystal Fibers
Authors:	Chen, H.-R. Lin, K.-H. Lin, J.-H. Hsieh, W.-F. 林家弘林奎輝謝文峰
Contributors:	臺北市立教育大學自然科學系
Date:	2008
Issue Date:	2009-07-31 15:06:32 (UTC+8)
Abstract:	We report a method for generating versatile tunable long-period gratings (LPGs) in photonic crystal fibers (PCFs). The central wavelength and rejection bandwidth of LPGs can be tuned over a broad spectral range with adjustable transmission loss. Spectral fringes with uneven spacing are observed in chirped LPGs, depending on the interaction length and the amount of chirping between the two ends of the LPG, and can be removed by reducing the chirping and increasing the grating length. By utilizing a stress-induced LPG, gain flattening of an erbium-doped fiber amplifier has also been demonstrated.
Relation:	Photonics Technology Letters, IEEE, V20(17), p.1503-1505
Appears in Collections:	[Department of Applied Physics and Chemistry] Periodical Articles

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