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1. 发明申请

US20070133084A1 Apparatus and method for all-optical control of gain and gain flattening on an optical amplifier 失效
标题翻译：光放大器增益和增益平坦化全光控制的装置和方法
公开(公告)号：US20070133084A1
公开(公告)日：2007-06-14
申请号：US11601817
申请日：2006-11-20
申请人： Bo Choi , Sang Lee , Chang Kim , Je Ko
发明人： Bo Choi , Sang Lee , Chang Kim , Je Ko
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/1302 , H01S3/005 , H01S3/0064 , H01S3/0078 , H01S3/06758 , H01S3/1608 , H01S2301/04 , H04B10/294
摘要： Provided is an apparatus and method for all-optically controlling both a gain and a gain flattening. The apparatus includes: a first amplifier automatically controlling a gain of the apparatus through a feedback loop while amplifying a received optical signal; a fixed gain flattening unit receiving the amplified optical signal from the first amplifier and compensating for the gain according to a wavelength of the received optical signal; and a second amplifier automatically controlling the gain through a feedback loop while amplifying the optical signal input from the fixed gain flattening unit. Accordingly, even if the number of channels of an input WDM optical signal varies, both of a gain and a gain flattening can be all-optically controlled.
摘要翻译：提供了一种用于全光控制增益和增益平坦化的装置和方法。该装置包括：第一放大器，通过反馈回路自动控制装置的增益，同时放大接收到的光信号; 固定增益平坦化单元，从第一放大器接收放大的光信号，并根据所接收的光信号的波长补偿增益; 并且第二放大器通过反馈环路自动地控制增益，同时放大从固定增益平坦化单元输入的光信号。因此，即使输入WDM光信号的信道数量变化，增益和增益平坦化也可以全光控制。

2. 发明申请

US20060239316A1 Apparatus for controlling temperature of optical module using uncooled laser diode 审中-公开
标题翻译：用于使用非制冷激光二极管控制光学模块的温度的装置
公开(公告)号：US20060239316A1
公开(公告)日：2006-10-26
申请号：US11136944
申请日：2005-05-24
申请人： Dae Kim , Bo Choi , Kwang Yang , Moon Park
发明人： Dae Kim , Bo Choi , Kwang Yang , Moon Park
IPC分类号： H01S3/04 , H01S3/00
CPC分类号： H01S5/02415 , H01S5/02212
摘要： The present invention relates to an apparatus for controlling temperature of an optical module using an uncooled laser diode. A first setup unit for establishing low-temperature setup voltage and a second setup unit for establishing high-temperature setup voltage determine first and second threshold voltages suitable for low-temperature and high-temperature setup voltages, respectively. First and second comparators compare the low-temperature and high-temperature setup voltages with sensor voltage received from a sensor voltage entry unit, respectively. The output signals of the comparators are applied to a logic circuit, such that the logic circuit generates on/off signals according to the result of the comparison. The logic circuit generates a high-level signal only when the sensor voltage escaped from a predetermined voltage range, and thus operates the temperature control circuit. Therefore, the TEC and the heater contained in the TEC/heater mounting member are operated to generate heat, such that the uncooled laser diode can be heated or cooled at only predetermined temperature. As a result, the uncooled laser diode can be heated or cooled at only predetermined temperature, controls temperature of the optical module at a low power level, resulting in reduction of power consumption.
摘要翻译：本发明涉及一种使用非制冷激光二极管控制光学模块的温度的装置。用于建立低温设置电压的第一设置单元和用于建立高温设置电压的第二设置单元分别确定适合于低温和高温设置电压的第一和第二阈值电压。第一和第二比较器分别将低温和高温设置电压与传感器电压输入单元接收的传感器电压进行比较。比较器的输出信号被施加到逻辑电路，使得逻辑电路根据比较结果产生开/关信号。只有当传感器电压从预定的电压范围逃逸时，逻辑电路才产生高电平信号，从而操作温度控制电路。因此，TEC /加热器安装部件中包含的TEC和加热器被操作以产生热量，使得非冷却的激光二极管可以仅在预定温度下被加热或冷却。结果，非冷却的激光二极管可以仅在预定温度下被加热或冷却，从而将光模块的温度控制在低功率水平，导致功耗的降低。

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