Method of Controlling a Laser in a WDM Application

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	Method of Controlling a Laser in a WDM Application
其他题名	Method of Controlling a Laser in a WDM Application
	GRAHAM, BUTLER; MICHAEL, LEACH
	2001-11-21
专利权人	ERICSSON AB
公开日期	2001-11-21
授权国家	英国
专利类型	发明申请
摘要	A method of controlling a laser (10 , Figure 1) in a WDM application prior to the power up or power down operation on the laser comprises, setting an attenuation factor of an attenuator (28, Figure 1) which is operative to attenuate the output of the laser to a high-value. Preferably, in any power up routine, following the setting of the attenuation factor to a maximum value 103, the laser current is increased to a desired operating level. When an operating wavelength of the laser has settled to a given value or has come to within a given tolerance of a given value, the attenuation factor is reduced to a normal working level 100. Preferably, in the power down routine, following the setting of the attenuation factor to a high-value 101, the laser current is reduced to a substantially zero level 102. The laser may be used in a DWDM application.; Alternatively, a method of controlling a laser in a WDM application (Figures 1 and 3) comprises establishing a predetermined laser temperature, controlling the laser current to give the wavelength of operation substantially equal to a desired wavelength and establishing a predetermined laser output power.
其他摘要	在激光器上电或断电操作之前在WDM应用中控制激光器（10，图1）的方法包括，设置衰减器（图1中的28）的衰减因子，其衰减输出。激光的高价值。优选地，在任何加电程序中，在将衰减系数设定为最大值103之后，将激光电流增加到期望的操作水平。当激光器的工作波长已经稳定在给定值或已达到给定值的给定容差范围内时，衰减系数降低到正常工作水平100.优选地，在断电程序中，在设定之后衰减系数为高值101，激光电流降低到基本为零的水平102.激光器可用于DWDM应用。或者，在WDM应用中控制激光的方法（图1和3）包括建立预定的激光温度，控制激光电流以使操作波长基本上等于所需波长并建立预定的激光输出功率。
主权项	Method of controlling a laser in a WDM application, wherein prior to a power-up or power-down operation on the laser an attenuation factor of an attenuator which is operative to attenuate the output power of the laser is set to a high value.
申请日期	1999-08-13
专利号	GB2362501A
专利状态	失效
申请号	GB2001019855
公开（公告）号	GB2362501A
IPC 分类号	H01S5/068 \| H01S \| H01S5/00 \| H04B \| H01S5/0687 \| H01S5/024 \| H04B10/04 \| H04B10/06 \| H04B10/14 \| H04B10/26 \| H04B10/28 \| H01S3/13
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/51272
专题	半导体激光器专利数据库
作者单位	ERICSSON AB
推荐引用方式 GB/T 7714	GRAHAM, BUTLER,MICHAEL, LEACH. Method of Controlling a Laser in a WDM Application. GB2362501A[P]. 2001-11-21.

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