Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-11-08
2005-11-08
Palmer, Phan T. H. (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S027000, C398S147000
Reexamination Certificate
active
06963685
ABSTRACT:
This invention generally relates to an optical filter for a fiber optic communication system. An optical filter may be used, following a directly modulated laser source, and converts a partially frequency modulated signal into a substantially amplitude modulated signal. The optical filter may compensate for the dispersion in the fiber optic transmission medium and may also lock the wavelength of the laser source.
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Chang-Hee Lee et al, Transmission of Directly Modulated 2.5-Gb/s Signals Over 250-km of Nondispersion-Shifted Fiber byUsing a Spectral Filtering Method,IEEE Photonics Technology Letters, vol. 8, No. 12, Dec. 1996, pp. 1725-1727.
Mahgerefteh Daniel
Tayebati Parviz
Palmer Phan T. H.
Pandiscio & Pandiscio
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