IMPROVED BIDIRECTIONAL OPTICAL AMPLIFIER STRUCTURE

PURPOSE: An improved bidirectional optical amplifier structure is to simplify the structure of the bidirectional optical amplifier using a strand of optical fiber and a single optical amplifier. CONSTITUTION: The first optical circulator(102) is connected to one end of a strand of an optical fiber t...

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Bibliographische Detailangaben
Hauptverfasser:	YOON, GYEONG MO, CHAE, CHANG JUN
Format:	Patent
Sprache:	eng ; kor
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 FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PURPOSE: An improved bidirectional optical amplifier structure is to simplify the structure of the bidirectional optical amplifier using a strand of optical fiber and a single optical amplifier. CONSTITUTION: The first optical circulator(102) is connected to one end of a strand of an optical fiber to change paths of an upward optical signal and a downward optical signal. A WDM(wavelength division multiplexing) channel of the upward optical signal passes through the first optical circulator, the first optical attenuator(104), the first optical fiber bragg grating(106) and the second optical circulator(108) and is input into an optical amplifier(110). A WDM channel of the downward optical signal passes through the fourth optical circulator(116), the second optical attenuator(118), and the second optical circulator, and is input into the optical amplifier.