LI Mu-lin, ZHANG Qiao-fen, SHI Sheng-da, et al. Design of Self-similar Pulse Compression Grating Pair based on Chirp Compensation. [J]. Study on Optical Communications (4):56-60(2021)
DOI:
LI Mu-lin, ZHANG Qiao-fen, SHI Sheng-da, et al. Design of Self-similar Pulse Compression Grating Pair based on Chirp Compensation. [J]. Study on Optical Communications (4):56-60(2021) DOI: 10.13756/j.gtxyj.2021.04.011.
Design of Self-similar Pulse Compression Grating Pair based on Chirp Compensation
In order to obtain a high-quality ultrashort pulse light source
we combine the self-similar pulse with the grating pair
and analyze the evolution and compression process of the self-similar pulse in detail through a numerical simulation method. We first launch the Full Width at Half Maximum (FWHM) of 1 ps
energy of 45 pJ Gaussian pulses into a dispersion decreasing fiber to generate the chirp self-similar pulse with strong linear characteristic. Then we use the grating self-similar pulse chirp compensation compressor to obtained an ultrashort pulse with FWHM of 80 fs and peak power of 507.6 W. The compression quality parameter
Q
is 0.96
and the compression factor is 12.5. On this basis
we analyze the influence of the third-order dispersion in the declining fiber on the compression quality of the grating
and find that as the third-order dispersion increases
the compressed pulse quality will be significantly reduced. The results show that when the third-order dispersion effect in the system is small
high-power ultrashort pulses can be obtained by using self-similar pulses and grating pairs. This result is helpful for the acquisition of ultrashort pulses.
Xu K, Ou Y. Theoretical and Numerical Characterization of a 40 Gbps Long-Haul Multi-Channel Transmission System with Dispersion Compensation[J]. Digital Communications and Networks, 2015, 18(3): 222-228.
Kaler R, Kaler R S. Comparison of Dispersion Mapping Techniques with Fiber Nonlinearities in Carrier Suppressed RZ Systems[J]. Optik-International Journal for Light and Electron Optics, 2010, 121(16): 1472-1477.
Kruglov V I, Peacock A C, Harvey J D. Exact Selfsimilar Solutions of the Generalized Nonlinear Schrödinger Equation with Distributed Coefficients[J]. Physical Review Letters, 2003, 90(11): 113902.
Zhang Q F, Gao J. Generation of Excellent Self-similar Pulses in a Dispersion-decreasing Fiber[J]. Optik-International Journal for Light and Electron Optics, 2011, 122(19): 1753-1756.
Zhang Q F, Deng Y H. Influence of Gain Coefficient on the Self-similar Pulses Propagation in a Dispersion-decreasing Fiber[J]. Optik-International Journal for Light and Electron Optics, 2016, 127(12): 5110-5114.
Boscolo S, Turitsyn S K, Novokshenov V Y, et al. Self-similar Parabolic Optical Solitary Waves[J]. Theoretical and Mathematical Physics, 2002, 133(3): 1647-1656.