Effect of initial frequency chirp on the supercontinuum generation in all-normal dispersion photonic crystal fibers

Chunfu Cheng; Youqing Wang; Qinghua Lv

doi:10.1117/12.916956

25 January 2012 Effect of initial frequency chirp on the supercontinuum generation in all-normal dispersion photonic crystal fibers

Chunfu Cheng; Youqing Wang; Qinghua Lv

Author Affiliations +

Proceedings Volume 8331, Photonics and Optoelectronics Meetings (POEM) 2011: Optical Communication Systems and Networking; 83310O (2012) https://doi.org/10.1117/12.916956
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

The effect of initial frequency chirp of input pulses on pulse dynamics and spectral broadening in all-normal dispersion photonic crystal fibers are investigated numerically. When the input peak power is low, for small initial frequency chirp the positive chirps can enhance the bandwidth of supercontinuum while the negative chirps can compress the spectrum. When the initial frequency chirp increases the bandwidth of supercontinuum can be further increased and the spectral broadening is similar for both signs of the initial frequency chirp. Especially, the simulations show that there exists an optimal chirp value that makes the supercontinuum flattest almost without the fine spectral structures. For high input peak power the initial frequency chirps have a little effect on the supercontinuum generation and the significant fine spectral structures appear which makes the coherence of supercontinuum become worse. In addition, the effects of input pulse parameters such as peak power, pulse duration and central wavelength on the supercontinuum generation have also been investigated. It is found that the broadest spectra can be obtained when central wavelength of pump pulse located near the maximum of the fiber dispersion curve.

Citation Download Citation

Chunfu Cheng, Chunfu Cheng, Youqing Wang, Youqing Wang, Qinghua Lv, Qinghua Lv, } "Effect of initial frequency chirp on the supercontinuum generation in all-normal dispersion photonic crystal fibers", Proc. SPIE 8331, Photonics and Optoelectronics Meetings (POEM) 2011: Optical Communication Systems and Networking, 83310O (25 January 2012); doi: 10.1117/12.916956; https://doi.org/10.1117/12.916956

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years