Banded semiconductor optical amplifiers and waveblockers

Details Banded semiconductor optical amplifiers and waveblockers Banded semiconductor optical amplifiers and waveblockers

2011-08-09

2011-08-09

Phan, Hanh (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S083000, C398S059000, C398S048000, C398S159000, C398S160000, C385S024000, C385S037000, C385S016000, C385S017000, C385S018000, C359S337000, C359S341200, C359S334000

Reexamination Certificate

active

07995921

ABSTRACT:
Embodiments of the present invention provide an array of semiconductor optical amplifiers, within a photonic integrated circuit (hereinafter, “PIC”), that apply a gain to one or more optical bands within a WDM signal. According to various embodiments of the invention this array of SOAs can function as both an amplifier and a ROADM by adjusting the gain characteristics of one or more of the SOAs within the array. A band within the WDM signal may be blocked by adjusting the SOA, corresponding to the particular band, to attenuate the band below a threshold.

REFERENCES:
patent: 6243179 (2001-06-01), Thompson et al.
patent: 6602002 (2003-08-01), Srivastava et al.
patent: 6868201 (2005-03-01), Johnson et al.
patent: 7155124 (2006-12-01), Peddanarappagari et al.
patent: 2002/0015553 (2002-02-01), Claringburn et al.

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