Research of photonic-assisted triangular-shaped pulses generation based on quadrupling RF modulation

We propose an approach to generate optical triangular-shaped pulse train with tunable repetition rate using quadrupling radio frequency （RF） modulation and optical grating dispersion-induced power fading. In this work, a piece of chirped fiber Bragg grating （FBG） is employed as the dispersive media...

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Bibliographic Details
Published in:Optoelectronics letters 2015-05, Vol.11 (3), p.207-212
Main Author: 袁瑾 宁提纲 李晶 李月琴 陈宏尧 张婵
Format: Article
Language:English
Subjects:
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
三角形脉冲
光信号处理
光子
啁啾光纤光栅
脉冲产生
调制
谐波失真
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Summary:We propose an approach to generate optical triangular-shaped pulse train with tunable repetition rate using quadrupling radio frequency （RF） modulation and optical grating dispersion-induced power fading. In this work, a piece of chirped fiber Bragg grating （FBG） is employed as the dispersive media to remove the undesired 8th harmonic in optical intensity. Thus, the generated harmonics of optical intensity can be corresponding to the first two Fourier components of typical periodic triangular pulses. This work also analyzes the impacts of the extinction ratio and the bias voltage drift on the harmonic distortion suppression ratio. After that, the value of the extinction ratio and the range of the bias voltage drift can be obtained, The advantage of this proposal is that it can generate high order frequency-multiplexed optical pulses train which can be applied in all optical signal processing and other fields.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-015-5018-x