Journal
OPTICS LETTERS
Volume 34, Issue 6, Pages 833-835Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.34.000833
Keywords
-
Categories
Funding
- Ministerio de Educacion y Ciencia of Spain [TEC 2008-05490]
- Secretarfa de Estado de Universidades e Investigacion del Ministerio de Investigacion y Ciencia (Spain)
- Facultad de Ingenieria
- Universidad Nacional de La Plata (Argentina)
Ask authors/readers for more resources
We demonstrate that an asymmetrical pi phase-shifted fiber Bragg grating operated in reflection can provide the required spectral response for implementing an all-optical fractional differentiator. There are different (but equivalent) ways to design it, e.g., by using different gratings lengths and keeping the same index modulation depth at both sides of the pi phase shift, or vice versa. Analytical expressions were found relating the fractional differentiator order with the grating parameters. The device shows a good accuracy calculating the fractional time derivatives of the complex field of an arbitrary input optical waveform. The introduced concept is supported by numerical simulations. (C) 2009 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available