Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2008-04-15
2008-04-15
Hughes, Deandra M (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
Reexamination Certificate
active
11346526
ABSTRACT:
A semiconductor optical amplifier (SOA) with efficient current injection is described. Injection current density is controlled to be higher in some areas and lower in others to provide, e.g., improved saturation power and/or noise figure. Controlled injection current can be accomplished by varying the resistivity of the current injection electrode. This, in turn, can be accomplished by patterning openings in the dielectric layer above the current injection metallization in a manner which varies the series resistance along the length of the device.
REFERENCES:
patent: 4359776 (1982-11-01), Acket et al.
patent: 4907055 (1990-03-01), Shinada
patent: 4910571 (1990-03-01), Kasahara et al.
patent: 5471335 (1995-11-01), Nitta
patent: 5539571 (1996-07-01), Welch et al.
patent: 5684816 (1997-11-01), Takagi
patent: 5723028 (1998-03-01), Poris
patent: 5805627 (1998-09-01), Kubota et al.
patent: 6117793 (2000-09-01), Tang
patent: 6186631 (2001-02-01), Behringer et al.
patent: 6538808 (2003-03-01), Tastavridis
patent: 6597497 (2003-07-01), Wang et al.
patent: 6650675 (2003-11-01), Sahara et al.
patent: 6678289 (2004-01-01), Kim
patent: 6714344 (2004-03-01), Islam et al.
patent: 6819814 (2004-11-01), Forrest et al.
patent: 7110170 (2006-09-01), Lee et al.
patent: 2002/0057491 (2002-05-01), Dorgeuille et al.
patent: 2004/0218259 (2004-11-01), Hui et al.
patent: 2006/0215255 (2006-09-01), Akiyama
patent: 02250042 (1990-10-01), None
patent: 03035224 (1991-02-01), None
Saini, S. S., et al., A Semiconductor Optical Amplifier with High Saturation Power, Low Noise Figure and Low Polarization Dependent Gain Over the C-Band, 17thAnnual Meeting IEEE Lasers and Electro-Optics Society (LEOS 2004), vol. 1, Nov. 8-9, 2004, pp. 102-103.
Bowser Jerry L.
Dagenais Mario
Heim Peter J. S.
Luciani Vincent K.
Saini Simarjeet S.
Covega Corp.
Hughes Deandra M
Potomac Patent Group PLLC
LandOfFree
Semiconductor optical amplifier having a non-uniform... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor optical amplifier having a non-uniform..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor optical amplifier having a non-uniform... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3947151