Time-based adjustment of temperature control of laser to...

Details Time-based adjustment of temperature control of laser to... Time-based adjustment of temperature control of laser to...

2007-06-26

2007-06-26

Wong, Don (Department: 2163)

Coherent light generators

Particular temperature control

C372S032000, C372S036000

Reexamination Certificate

active

10783560

ABSTRACT:
Method and apparatuses for compensating for wavelength drift in a fiber-optic laser transmitter includes 1) controlling a temperature within the optoelectronic assembly at a defined level; 2) driving the optoelectronic assembly to emit light, wherein the emitted light has a wavelength that is within a channel of operation, the channel of operation including a range of wavelengths centered around a channel center wavelength; 3) accessing from memory within the optoelectronic assembly a control value associated with the temperature of the optoelectronic assembly at defined points within an operational lifetime of the optoelectronic assembly; and 4) recalculating the defined level by reference to the control value, whereby a wavelength of the optoelectronic assembly is maintained within the channel of operation despite an expected drift of wavelength.

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