Title :
Gaussian Recompression in Cascaded Transmission Gratings
Author :
Asfar, Omar R. ; Bataineh, Mohammed H.
Author_Institution :
Electr. Eng. Dept., Jordan Univ. Of Sci. & Technol., Jordan
Abstract :
A step-chirped step-apodized transmission grating is proposed to maximize compression ratio, minimize compensating length, and improve recompressed pulse shape of a 40-ps (FWHM) Gaussian pulse, broadened and chirped upon transmission in a 100 km length of optical fiber. This is accomplished by tuning a single transmission side lobe to lie within or coincide with the pulse bandwidth at the upper edge of the photonic band gap of each grating section. Analysis is via the theory of uniform cascaded gratings achieving a compression ratio of 5.625 in a four-section grating 3.422 cm long.
Keywords :
chirp modulation; diffraction gratings; holey fibres; optical communication equipment; optical design techniques; optical fibre communication; optical images; optical pulse compression; optical pulse shaping; photonic band gap; photonic crystals; Gaussian pulse shape recompression; compression ratio; four-section grating; optical fiber transmission; photonic band gap; pulse broadening; size 3.422 cm; step-chirped step-apodized transmission grating; time 40 ps; uniform cascaded transmission grating design; Bandwidth; Chirp; Fiber gratings; Optical fibers; Optical pulse shaping; Optical pulses; Optical tuning; Photonic band gap; Pulse compression methods; Shape; Bragg gratings; dispersion compensation; pulse compression;
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
DOI :
10.1109/ICSPC.2007.4728471
