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    • 8. 发明授权
    • Optical communication light source unit and wavelength monitoring control method
    • 光通信光源单元和波长监控控制方法
    • US07869717B2
    • 2011-01-11
    • US11568109
    • 2006-02-02
    • Shingo KawaiKiyoshi MatsumotoHideo KawataNaoto YoshimotoKatsumi Iwatsuki
    • Shingo KawaiKiyoshi MatsumotoHideo KawataNaoto YoshimotoKatsumi Iwatsuki
    • H04B10/04H01S3/13
    • H01S5/0687H01S5/0617H01S5/06804H01S5/0683
    • In the present invention, the extremely complicated setting and control and an extremely expensive optical component (wavelength locker) are not required, and optical output wavelength and optical output power can simply be set and controlled at a moderate price. At least one value for determining a dependence of the optical output wavelength on drive current and device temperature and at least one value for determining a dependence of the optical output power on drive current and device temperature in a light emitting device constituting first means 1 for emitting light are stored in fourth means 4. Fifth means 5 determines drive current or optical output power c and device temperature d, at which both the optical output wavelength and optical output power of the light emitting device are separately specified value b, from a relationship among the drive current, device temperature, and optical output wavelength of the light emitting device, the relationship being determined by the at least one value, and a relationship among the drive current, device temperature, and optical output power, the relationship being determined by the at least one value, and the fifth means 5 gives the drive current or optical output power c and device temperature d as target values to second means 2 and third means 3.
    • 在本发明中,不需要非常复杂的设置和控制以及极其昂贵的光学部件(波长锁定器),并且可以以适中的价格简单地设置和控制光输出波长和光输出功率。 用于确定光输出波长对驱动电流和器件温度的依赖性的至少一个值和用于确定构成用于发射的第一装置1的发光器件中的光输出功率对驱动电流和器件温度的依赖性的至少一个值 光存储在第四装置4中。第五装置5确定驱动电流或光输出功率c和器件温度d,其中发光器件的光输出波长和光输出功率两者分别指定值b, 所述驱动电流,器件温度和所述发光器件的光输出波长,所述关系由所述至少一个值确定,以及所述驱动电流,器件温度和光输出功率之间的关系,所述关系由 至少一个值,第五装置5给出驱动电流或光输出功率c和器件温度d 作为第二装置2和第三装置3的目标值。