Title :
Ramped, unchirped fiber gratings for dispersion compensation
Author_Institution :
Telstra Res. Labs., Clayton, Vic., Australia
fDate :
8/1/1997 12:00:00 AM
Abstract :
The effective medium method is used to analyze an unchirped fiber grating in which the coupling strength between the light field and grating is monotonically increasing with penetration depth into the grating. The potential use of this type of grating for dispersion compensation in intensity modulated optical systems is discussed. It is shown that, when this type of grating is used in reflection, appropriately designed linearly ramped gratings can be used to compensate fiber dispersion over a wide range of bandwidth-distance product values. In contrast, when the grating is used in transmission, there are strong limits on the bandwidth-distance product
Keywords :
compensation; diffraction gratings; optical fibre communication; optical fibre couplers; optical fibre dispersion; optical fibre theory; optical fibres; optical modulation; Bragg grating; bandwidth-distance product; bandwidth-distance product values; coupling strength; effective medium method; fiber dispersion compensation; intensity modulated optical systems; light field; linearly ramped gratings; monotonically increasing; penetration depth; ramped unchirped fiber gratings; reflection; Bragg gratings; Fiber gratings; Intensity modulation; Optical fiber dispersion; Optical modulation; Optical reflection; Optical refraction; Optical sensors; Refractive index; Space technology;
Journal_Title :
Lightwave Technology, Journal of
