Optical fiber amplifier for controlling gain flatness

一种用于控制增益平坦度的光纤放大器，它包括：一个根据预定的放大控制值来对输入信号光进行放大的光纤放大单元(120)；一个对光纤放大单元(120)输出的预定波段上的放大自发发射(ASE)的功率电平进行测量的测量单元(130)；以及一个根据测得的ASE功率电平来控制光纤放大单元(120)的放大控制值以使光纤放大单元(120)增益平坦的增益控制器(140)。本发明能够监视并控制放大信号光的增益平坦度，从而即使信号光功率电平随波长发生变化，也能获得增益平坦的信号光。 An optical fiber amplifier for controlling gain flatness including a...

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Bibliographische Detailangaben
1. Verfasser:	YOON SOO-YOUNG,JUNG RAE-SUNG,HWANG SEONG-TAEK
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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 LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSMISSION
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Beschreibung
Zusammenfassung:	一种用于控制增益平坦度的光纤放大器，它包括：一个根据预定的放大控制值来对输入信号光进行放大的光纤放大单元(120)；一个对光纤放大单元(120)输出的预定波段上的放大自发发射(ASE)的功率电平进行测量的测量单元(130)；以及一个根据测得的ASE功率电平来控制光纤放大单元(120)的放大控制值以使光纤放大单元(120)增益平坦的增益控制器(140)。本发明能够监视并控制放大信号光的增益平坦度，从而即使信号光功率电平随波长发生变化，也能获得增益平坦的信号光。 An optical fiber amplifier for controlling gain flatness including an optical fiber amplifying unit for amplifying input signal light according to a predetermined amplification control value, a measuring unit for measuring the power level of amplified spontaneous emission (ASE) at a predetermined wavelength band output from the optical fiber amplifying unit, and a gain controller for controlling the amplification control value of the optical fiber amplifying unit according to the measured power level of the ASE to flatten the gain of the optical fiber amplifying unit. The gain flatness of amplified signal light is monitored and controlled, thereby obtaining gain-flattened signal light even when power level of signal light varies from wavelength to wavelength.