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

Abstract

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.

Keywords

Radio Frequency / Pulse Train / Fiber Bragg Grating / Modulation Depth / Extinction Ratio

References

[1] ParmigianiF, IbsenM, NgT T. Efficient Optical Wavelength Conversion Using Triangular Pulses Generated Using a Superstructured Fiber Bragg Grating, 2008 Optical Fiber Communication Conference, San Diego, CA, USA, 2008,

[2] BhamberR S, LatkinA I, BoscoloSAll-optical TDM to WDM Signal Conversion and Partial Regeneration Using XPM with Triangular Pulsesthe 34th European Conference on Optical Communication, Brussels, Belgium, 2008,

[3] LatkinA I, BoscoloS, BhamberR SOptical Frequency ConversionPulse Compression and Signal Copying Using Triangular Pulses, the 34th European Conference on Optical Communication, Brussels, Belgium, 2008,

[4] LatkinA I, BoscoloS, BhamberR S. Opt. Soc. Am. B, 2009, 26: 1492

[5] YeJ, YanL, PanW. Optics Letters, 2011, 36: 1458

[6] ZhangA, LiC. Optics & Laser Technology, 2013, 52: 81

[7] DaiB, GaoZ, WangX. Electronics Letters, 2011, 47: 336

[8] DaiB, GaoZ, WangX. IEEE/OSA Journal of Lightwave Technology, 2013, 31: 145

[9] LiJ, ZhangX, HraimelB. IEEE/OSA Journal of Lightwave Technology, 2012, 30: 1617

[10] LiJ, NingT, PeiL. Optical Fiber Technology, 2013, 19: 574

[11] ErdoganT. Journal of Lightwave Technology, 1997, 15: 1277

[12] ZhangZ-j. Fiber Grating Theoretical Basis, 2009, Beijing, Science Press