Wavelength-division-multiplexed optical source and passive...

Details Wavelength-division-multiplexed optical source and passive... Wavelength-division-multiplexed optical source and passive...

2007-09-18

2007-09-18

Chan, Jason (Department: 2613)

Optical communications

Multiplex

Broadcast and distribution system

C398S070000, C398S071000, C398S092000, C398S153000, C398S157000, C359S341300

Reexamination Certificate

active

10642778

ABSTRACT:
A WDM optical source, in adopting a spectrum-sliced method, advantageously needs neither an optical source with specific generation wavelength nor a wavelength-stabilizing circuit for stabilizing wavelength. Affording high power and a very narrow line width, the WDM optical source can provide a broadcasting service without signal distortion by a chromatic dispersion effect and also avoids the expense of an amplifier and/or external modulator, thereby relieving subscribers of the economical burden. The practical use of WDM-PON and of WDM-PON using an inventive WDM optical source can therefore be brought to fruition and broadcasting service can be provided economically.

REFERENCES:
patent: 5742414 (1998-04-01), Frigo et al.
patent: 6577422 (2003-06-01), Frigo et al.
patent: 2002/0093710 (2002-07-01), Birk et al.
patent: 2003/0039010 (2003-02-01), Akimoto et al.
patent: 10-093164 (1998-04-01), None
patent: 2001-356226 (2001-12-01), None

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