Coherent light generators – Particular beam control device – Optical output stabilization
Reexamination Certificate
2005-01-18
2005-01-18
Wong, Don (Department: 2821)
Coherent light generators
Particular beam control device
Optical output stabilization
C372S032000
Reexamination Certificate
active
06845109
ABSTRACT:
The present invention provides a method for correcting a shift of an output wavelength of a light source. The output wavelength shift correcting method derives simple equations through experimental processes, predicts a shift degree of the output wavelength with respect to a varied input current using the equations whenever a drive current is reset later, and adjusts a drive temperature according to the predicted shift degree, thus correcting the shift of the output wavelength. The output wavelength shift correcting method is advantageous in that it provides a method of locking an output wavelength of each light source without continuously operating a wavelength locker or a wavelength measuring device, thus reducing the operating cost of the optical communication system.
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Kang Seon Mo
Ko Je Soo
Lee Jyung Chan
Myong Seoung Il
Blakely & Sokoloff, Taylor & Zafman
Electronics & Telecommunications Research Institute
Vy Hung Tran
Wong Don
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