FIXED-GAIN SEMICONDUCTOR OPTICAL AMPLIFIER USING RAMAN AMPLIFICATION PRINCIPLE

PROBLEM TO BE SOLVED: To provide a fixed-gain semiconductor optical amplifier using the Ranman amplification principle which has a relatively high gain characteristic and a relatively low noise figure without using a pumping light source for a Raman amplifier. SOLUTION: This fixed-gain semiconductor...

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Bibliographic Details
Main Authors HWANG SEONG-TEAK, RI TEISHAKU
Format Patent
LanguageEnglish
Published 06.01.2005
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
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
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Summary:PROBLEM TO BE SOLVED: To provide a fixed-gain semiconductor optical amplifier using the Ranman amplification principle which has a relatively high gain characteristic and a relatively low noise figure without using a pumping light source for a Raman amplifier. SOLUTION: This fixed-gain semiconductor optical amplifier using the Ranman amplification principle comprises an optical fiber 201 having a Raman gain characteristic, and a fixed-gain semiconductor optical amplifier 202 which supplies pumping light to the optical fiber by using laser oscillation that is oscillated by utilizing a mutually asymmetrical DBR grating formed at an input and an output terminal, and then amplifies signal light which is Raman-amplified by the optical fiber. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040173994