Optical communication light source unit and wavelength...

Details Optical communication light source unit and wavelength... Optical communication light source unit and wavelength...

2011-01-11

2011-01-11

Liu, Li (Department: 2613)

Optical communications

Transmitter

C398S192000, C398S196000, C398S197000, C398S201000, C372S029010, C372S029020, C372S034000

Reexamination Certificate

active

07869717

ABSTRACT:
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 means1for emitting light are stored in fourth means4. Fifth means5determines 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 means5gives the drive current or optical output power c and device temperature d as target values to second means2and third means3.

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