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    • 5. 发明公开
    • 다파장 광원 및 그를 이용한 파장 분할 다중 시스템
    • 使用相同的多波长光源和波长段多路复用系统来减少功率波动和电流
    • KR1020050023117A
    • 2005-03-09
    • KR1020030060191
    • 2003-08-29
    • 삼성전자주식회사
    • 신현철이정석황성택정대광
    • H04J14/02
    • H01S5/14H01S5/0265H01S5/028H01S5/06812H01S5/1085H01S5/1092
    • PURPOSE: A multi-wavelength light source and a wavelength division multiplexing system using the same are provided to reduce power fluctuation and RIN(Relative Intensity Noise) by amplifying a multi-wavelength light generated at a Fabry-Perot laser in a semiconductor optical amplifier. CONSTITUTION: A multi-wavelength light source(100) includes a substrate(110), a Fabry-Perot laser, and a semiconductor optical amplifier. The Fabry-Perot laser(120) is laminated on the substrate and generates a multi-wavelength light when driven by an operation current lower than a threshold current. The semiconductor optical amplifier(130) is laminated on the substrate so that one end faces one side of the Fabry-Perot laser. The semiconductor optical amplifier amplifies the multi-wavelength light from the Fabry-Perot laser. The semiconductor optical amplifier is driven when the gain is saturated to reduce RIN(Relative Intensity Noise) of plural channels included in the multi-wavelength light.
    • 目的:提供一种多波长光源和使用该多波长光源的波分复用系统,以通过放大半导体光放大器中的法布里 - 珀罗激光器处产生的多波长光来降低功率波动和RIN(相对强度噪声)。 构成:多波长光源(100)包括衬底(110),法布里 - 珀罗激光器和半导体光放大器。 法布里 - 珀罗激光器(120)层叠在基板上,并且由低于阈值电流的工作电流驱动时产生多波长光。 半导体光放大器(130)层叠在基板上,使得其一端面向法布里 - 珀罗激光器的一侧。 半导体光放大器放大来自法布里 - 珀罗激光器的多波长光。 当增益饱和时,半导体光放大器被驱动,以减少包括在多波长光中的多个通道的RIN(相对强度噪声)。
    • 7. 发明公开
    • 광송신기 전류 조정 장치 및 방법
    • 控制光发射器电流的装置和方法
    • KR1020120071317A
    • 2012-07-02
    • KR1020110123547
    • 2011-11-24
    • 에릭슨 엘지 주식회사
    • 송재호이희열김봉수
    • H04B10/50H04B10/564H01S5/068
    • H04B10/503H01S5/06812H04B10/564
    • PURPOSE: An optical transmission current control apparatus and method thereof are provided to maintain light output and signal quality by providing basic bias current similar with threshold current values. CONSTITUTION: A basic bias current unit(316) provides basic bias current. A PD(Photo Diode)(312) changes optical signals which are outputted to a rear surface unit into monitoring current. A modulation current unit(313) creates modulation current. An APC(Automatic Power Control) circuit unit(314) forms control signals for controlling bias current based on the monitoring current. A bias current unit(315) forms the bias current based on the control signals.
    • 目的:提供一种光传输电流控制装置及其方法,通过提供类似于阈值电流值的基本偏置电流来保持光输出和信号质量。 构成:基本偏置电流单元(316)提供基本偏置电流。 PD(光电二极管)(312)将输出到后表面单元的光信号改变为监视电流。 调制电流单元(313)产生调制电流。 APC(自动功率控制)电路单元(314)基于监视电流形成用于控制偏置电流的控制信号。 偏置电流单元(315)基于控制信号形成偏置电流。