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1. 发明专利

JP2007095768A Method of controlling optical amplifier 审中-公开
标题翻译：控制光放大器的方法
公开(公告)号：JP2007095768A
公开(公告)日：2007-04-12
申请号：JP2005279782
申请日：2005-09-27
申请人： Central Glass Co Ltd , セントラル硝子株式会社
发明人： KUBOTA YOSHINORI , YOSHIE HISAKI , HARA IKUNARI
IPC分类号： H01S3/10 , H01S3/0933
摘要： PROBLEM TO BE SOLVED: To provide a method of controlling an optical amplifier which has a simplified structure, can substantially cause no noise, and can recover an amplification function at a high speed when an input signal is recovered, in the method of controlling the optical amplifier for detecting an input signal interruption and controlling a pumping light source. SOLUTION: The method of controlling an optical amplifier for detecting an input signal interruption and controlling a pumping light source is used to control the driving current of the pumping light source or a driving voltage at a threshold of the pumping light source or smaller when the input signal interruption is detected. A laser or a semiconductor laser can be used for the pumping light source, and after the driving current of the pumping light source or the driving voltage is suppressed, a time constant for activating the pumping light source is set so that the recovery time of the amplification function may be 1 μs or longer and 10 ms or shorter when the input signal is recovered. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供控制具有简化结构的光放大器的方法，可以基本上不产生噪声，并且可以在恢复输入信号时以高速恢复放大功能，方法为控制光放大器用于检测输入信号中断并控制泵浦光源。解决方案：控制用于检测输入信号中断和控制泵浦光源的光放大器的方法用于控制泵浦光源的驱动电流或泵浦光源的阈值处的驱动电压或更小当检测到输入信号中断时。激光器或半导体激光器可以用于泵浦光源，并且在泵浦光源的驱动电流或驱动电压被抑制之后，激活泵浦光源的时间常数被设定为使得激光器的恢复时间当输入信号恢复时，放大功能可能为1μs或更长，10 ms或更短。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005341335A Optical amplification and distribution system 审中-公开
标题翻译：光学放大和分配系统
公开(公告)号：JP2005341335A
公开(公告)日：2005-12-08
申请号：JP2004158649
申请日：2004-05-28
申请人： Central Glass Co Ltd , セントラル硝子株式会社
发明人： YOSHIE HISAKI , KUBOTA YOSHINORI , SAKAGUCHI SHIGEKI
IPC分类号： H01S3/06 , H01S3/067 , H01S3/10 , H01S3/17 , H04B10/00 , H04B10/07 , H04B10/2537 , H04B10/2543 , H04B10/27 , H04B10/272 , H04B10/29 , H04B10/293 , H04B10/16 , H04B10/17 , H04B10/20
摘要： PROBLEM TO BE SOLVED: To construct an optical amplification and distribution network which can realize flexible system design and a low cost as compared with the conventional CATV distribution system. SOLUTION: A signal light outputted from a light transmission apparatus 101 is branched into a plurality of signal light beams (output 1, output 2, ..., output (n)) by an optical distributor 102. The branched signal light beams are amplified by an optical fiber amplifier 103 disposed on the post-stage of the optical distributor, and amplified signal light beams (output 1a, output 2a, ..., output na) are outputted from light output ports. The optical fiber amplifier is disposed on the post-stage of the light distributor, thereby providing an optical network wherein user service quality is improved without necessity to stop the entire system even when an accident or the like occurs. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：与传统的CATV分配系统相比，构建可实现灵活的系统设计和低成本的光放大和分配网络。解决方案：从光发射装置101输出的信号光通过光分配器102分支为多个信号光束（输出1，输出2，...，输出（n））。分支信号光光束由设置在光分配器的后级上的光纤放大器103放大，并且从光输出端口输出放大的信号光束（输出1a，输出2a，...，输出na）。光纤放大器设置在光分配器的后级上，从而提供一种光网络，其中即使发生事故等也不需要停止整个系统，用户服务质量得到改善。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2008141366A Optical amplification system for suppressing optical surge 审中-公开
标题翻译：用于抑制光学波纹的光学放大系统
公开(公告)号：JP2008141366A
公开(公告)日：2008-06-19
申请号：JP2006324119
申请日：2006-11-30
申请人： Central Glass Co Ltd , セントラル硝子株式会社
发明人： YOSHIE HISAKI , KUBOTA YOSHINORI , MIYASHITA MINORU
IPC分类号： H01S3/10 , H04B10/07 , H04B10/079 , H04B10/29 , H04B10/293
摘要： PROBLEM TO BE SOLVED: To provide an optical amplification system having optical surge suppressed and having a simple configuration, which is capable of reducing the amount of optical surge output at the time of rise of input light by switching a signal input to an output regularizing circuit when variance in input light power occurs. SOLUTION: The optical amplification system for use in optical communication etc. which includes at least an optical amplification part, an input light power monitor, an input interruption detection circuit, an input interruption protection circuit, and a gain control means, is provided with: an output light power monitor, an electric signal switch, and the output regularizing circuit; and a control circuit in which the electric signal switch disposed between the output light power monitor and the output regularizing circuit performs switching from a signal output from the output power monitor to a pseudo output light power signal output from the input interruption detection circuit when the input interruption detection circuit detects an input light interruption. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供抑制光浪涌并具有简单结构的光放大系统，其能够通过将输入信号输入切换到输入光的信号来减少输入光上升时的光浪涌输出量当输入光功率发生变化时，输出正弦电路。解决方案：至少包括光放大部分，输入光功率监视器，输入中断检测电路，输入中断保护电路和增益控制装置的用于光通信的光放大系统是提供：输出光功率监视器，电信号开关和输出正则化电路; 以及控制电路，其中设置在输出光功率监视器和输出正规化电路之间的电信号开关执行从输出功率监视器输出的信号切换到从输入中断检测电路输出的伪输出光功率信号，当输入中断检测电路检测输入光中断。版权所有（C）2008，JPO＆INPIT

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