Improving the Performance of Fiber Gratings with Sinusoidal Chirps
Applied Optics, Vol. 42, Issue 12, pp. 2181-2187 (2003)
http://dx.doi.org/10.1364/AO.42.002181
Acrobat PDF (191 KB)
Abstract
Sinusoidal chirps are introduced in fiber gratings to improve their performance as dispersion compensators and multichannel filters. The sinusoidally chirped fiber gratings exhibit a flattop spectrum with steep edges and high reflectivity. The bandwidth utilization defined as the ratio of −1:−30-dB bandwidth could be very high (>0.85). This structure can be applied to the sampled fiber gratings to enhance channel uniformity. We demonstrate 264 uniform channels with a 25-GHz-spacing for high-density-wavelength multiplexing applications. Multichannel dispersion compensations with seven uniform channels of 50-GHz-spacing in short fiber gratings are also demonstrated. The impact of possible fabrication errors on the spectra of the gratings is discussed.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(050.1590) Diffraction and gratings : Chirping
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.1480) Optical devices : Bragg reflectors
(230.1950) Optical devices : Diffraction gratings
Citation
Lin Zhang and Changxi Yang, "Improving the Performance of Fiber Gratings with Sinusoidal Chirps," Appl. Opt. 42, 2181-2187 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-12-2181
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