Broadband long-period gratings

This invention is predicated on applicants' discovery that one can design long-period gratings having a center wavelength versus A characteristic which changes polarity of slope near a wavelength of interest. Such a grating can be chirped to exhibit a wider bandwidth than chirped conventional g...

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Bibliographic Details
Main Authors JUDKINS; JUSTIN BOYD, VENGSARKAR; ASHISH MADHUKAR, WAGENER; JEFFERSON LYNN
Format Patent
LanguageEnglish
Published 04.07.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING
DEVICES USING STIMULATED EMISSION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
FREQUENCY-CHANGING
NON-LINEAR OPTICS
OPTICAL ANALOGUE/DIGITAL CONVERTERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICAL LOGIC ELEMENTS
OPTICS
PHYSICS
TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
TRANSMISSION
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Summary:This invention is predicated on applicants' discovery that one can design long-period gratings having a center wavelength versus A characteristic which changes polarity of slope near a wavelength of interest. Such a grating can be chirped to exhibit a wider bandwidth than chirped conventional gratings, e.g. 100 nm as compared to 20 nm. The new wide bandwidth gratings are highly useful in optical communications systems for dispersion compensation and for compensation of spectrally dependent optical amplifiers.
Bibliography:Application Number: US19980053236