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    • 1. 发明公开
    • 주입된 비간섭성 광의 파장에 페브리-페롯 레이저다이오드의 파장이 자동으로 잠김되게 하기 위한 온도조절 방법
    • 控制温度锁定自动波长的手套激光二极管在注射非绝缘光波长方面的方法
    • KR1020040025304A
    • 2004-03-24
    • KR1020020057223
    • 2002-09-19
    • 정보통신연구진흥원노베라옵틱스코리아 주식회사
    • 추광욱이창희김봉수
    • H01S3/0941
    • H04B10/504H01S5/0687H01S5/4006H04B10/572
    • PURPOSE: A method for controlling temperature to lock automatically a wavelength of a Fabry-Perot laser diode in a wavelength of injected non-interfering light is provided to lock automatically the wavelength of the Fabry-Perot laser diode in the wavelength of the light injected from the outside by improving a temperature control method. CONSTITUTION: A new temperature setup voltage instead of a previous temperature setup voltage is provided to an automatic temperature controller. A value of current applied to a Fabry-Perot laser diode is measured. The temperature setup voltage of the automatic temperature controller is changed by comparing a previous current value of the Fabry-Perot laser diode to a present current value of the Fabry-Perot laser diode. The changed temperature setup voltage is provided to the automatic temperature controller. The above processes are performed repeatedly after a predetermined period of time.
    • 目的:提供一种控制温度自动锁定法布里 - 珀罗激光二极管在注入非干涉光波长下的波长的方法,可自动锁定法布里 - 珀罗激光二极管的波长, 外部通过改善温度控制方法。 构成:自动温度控制器提供新的温度设置电压而不是先前的温度设置电压。 测量施加到法布里 - 珀罗激光二极管的电流值。 通过将法布里 - 珀罗激光二极管的先前电流值与法布里 - 珀罗激光二极管的当前电流值进行比较来改变自动温度控制器的温度设置电压。 温度设定电压变化提供给自动温度控制器。 上述处理在预定时间段之后重复执行。
    • 8. 发明公开
    • 주입된 비간섭성 광에 파장 잠김된 광원을 이용한 양방향파장분할다중방식 수동형 광 네트워크
    • 双向波长多路复用无源光网络使用波长入射光源注入不可见光
    • KR1020030063085A
    • 2003-07-28
    • KR1020020060868
    • 2002-10-07
    • 정보통신연구진흥원노베라옵틱스코리아 주식회사
    • 추광욱이창희오태원
    • H04L12/28
    • H04J14/02H04B10/506H04J14/0226H04J14/0227H04J14/0246H04J14/025H04J14/0282H04J14/0297
    • PURPOSE: A bidirectional WDM-PON(Wavelength-Division Multiplexing Passive Optical Network) using wavelength-seeded light sources in injected incoherent light is provided to use a wavelength tracking device and an optical cable fault detection device, so as to fully satisfy wavelength coincidence conditions. CONSTITUTION: A-band optical transmitters output upward signals at an A-band wavelength. B-band optical transmitters output downward signals at a B-band wavelength. Optical receivers(204-206) receive upward signals at the A-band wavelength. Optical receivers(227,229) receive downward signals at the B-band wavelength. An A-band spontaneous emission light source(213) outputs incoherent light at the A-band wavelength. A B-band spontaneous emission light source(214) outputs incoherent light at the B-band wavelength. 2x2 optical couplers(215,216) are operated at the A-band wavelength and the B-band wavelength. Optical filters(207,209,217,218,224-226) separate and combine light at the A-band wavelength and the B-band wavelength. And optical multiplexers/demultiplexers(212,213) respectively located at a central base station and a remote node perform wavelength-division multiplexing/demultiplexing for light at the A-band wavelength and light at the B-band wavelength.
    • 目的:提供使用波长跟踪装置和光缆故障检测装置在注入非相干光中使用波长种子光源的双向WDM-PON(波分复用无源光网络),以完全满足波长重合条件 。 构成:A波段光发射机以A波段波长输出向上的信号。 B波段光发射机以B波段波长输出下行信号。 光接收机(204-206)在A波段波长下接收上行信号。 光接收器(227,229)以B波段波长接收下行信号。 A波段自发发射光源(213)输出A波段波长的非相干光。 B波段自发发射光源(214)输出B波段波长的非相干光。 2x2光耦合器(215,216)在A波段波长和B波段波长下工作。 光滤波器(207,209,217,218,224-226)分离并组合A波段波长和B波段波长的光。 并且分别位于中央基站和远程节点的光复用器/解复用器(212,213)对A波段波长的光和B波段波长的光进行波分复用/解复用。