TUNABLE DISPERSION COMPENSATOR WITH MINIMUM DIFFERENTIAL GROUP DELAY

PROBLEM TO BE SOLVED: To provide a method and system for achieving dispersion compensation in an optical system.SOLUTION: At least one path to which a tunable chirped fiber Bragg grating is connected is coupled into an optical system, and each such grating provides respective tunable amounts of disp...

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Bibliographische Detailangaben
Hauptverfasser:	HOLLAND WILLIAM R, KUDELKO DAVID J, LI YAOWEN, BUBEL GREGORY M, WESTBROOK PAUL S
Format:	Patent
Sprache:	eng
Schlagworte:	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 ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSMISSION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and system for achieving dispersion compensation in an optical system.SOLUTION: At least one path to which a tunable chirped fiber Bragg grating is connected is coupled into an optical system, and each such grating provides respective tunable amounts of dispersion. At least one of respective DGD (Differential Group Delay) elements is connected into the respective paths with respect to each grating. A set of all the DGD elements in a given path introduces a bias differential group delay DGDhaving an absolute value that is substantially equal to differential group delay introduced by the grating to at least one tuning value of the grating.