Light output module and light emission control method

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	Light output module and light emission control method
其他题名	Light output module and light emission control method
	ARAI NARIHIRO
	2018-08-30
专利权人	NEC CORPORATION
公开日期	2018-08-30
授权国家	世界知识产权组织
专利类型	发明申请
摘要	[Problem] To provide a light output module capable of maintaining a stable light output power in a normal temperature region and a high temperature region without complicating the configuration. [Solution] The light output module is provided with a light output means 1, a temperature measurement means 2, a selection means 3, and a control means 4. The light output means 1 outputs, from a laser element, light with a power corresponding to a current flowing through the laser element. The temperature measurement means 2 measures the temperature around the laser element. The selection means 3 selects either one of a first control amount for keeping the value of the current flowing through the laser element constant, and a second control amount for allowing a current set in advance for each temperature to flow to the laser element. The control means 4 controls the current flowing through the laser element on the basis of the selected control amount. Further, the selection means 3 selects the first control amount when the temperature measured by the temperature measurement means 2 is less than a reference temperature, and selects the second control amount when said temperature is higher than the reference temperature.
其他摘要	[问题]提供一种能够在常温区域和高温区域中保持稳定的光输出功率的光输出模块，而不会使配置复杂化。 [解决方案]光输出模块设有光输出装置1，温度测量装置2，选择装置3和控制装置4.光输出装置1从激光元件输出具有相应功率的光流过激光元件的电流。温度测量装置2测量激光元件周围的温度。选择装置3选择用于保持流过激光元件的电流值恒定的第一控制量和用于允许每个温度预先设定的电流流到激光元件的第二控制量中的任何一个。控制装置4根据所选择的控制量控制流过激光元件的电流。此外，选择装置3在由温度测量装置2测量的温度小于参考温度时选择第一控制量，并在所述温度高于参考温度时选择第二控制量。
主权项	-
申请日期	2018-02-20
专利号	WO2018155405A1
专利状态	未确认
申请号	PCT/JP2018/005879
公开（公告）号	WO2018155405A1
IPC 分类号	H01S5/068 \| H04B10/293 \| H04B10/564
专利代理人	SHIMOSAKA NAOKI
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/57384
专题	半导体激光器专利数据库
作者单位	NEC CORPORATION
推荐引用方式 GB/T 7714	ARAI NARIHIRO. Light output module and light emission control method. WO2018155405A1[P]. 2018-08-30.