Coherent light generators – Particular active media
Reexamination Certificate
2006-03-14
2006-03-14
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular active media
C372S050121
Reexamination Certificate
active
07012942
ABSTRACT:
A vertical cavity laser array device including a substrate, top and bottom dielectric stacks, and an active region for producing laser light. The active region includes one or more periodic gain region(s) and spacer layers disposed on either side of the periodic gain region(s) and arranged so that the periodic gain region(s) is aligned with the antinodes of the device's standing wave electromagnetic field. A structure is provided for modulating the properties of the periodic gain region(s) at spaced locations so as to provide an array of spaced laser pixels which have higher net gain than the interpixel regions; and the spaced laser pixels having the same or different sizes and the spacings between pixels having the same or different lengths to cause the output of the vertical cavity laser array device to produce single or multimode laser output.
REFERENCES:
patent: 4881236 (1989-11-01), Brueck et al.
patent: 6489002 (2002-12-01), Moriya et al.
patent: 6853660 (2005-02-01), Spoonhower et al.
patent: 2003/0016715 (2003-01-01), Furukawa et al.
patent: 0847094 (1998-06-01), None
patent: 1333550 (2003-08-01), None
patent: 1365490 (2003-11-01), None
patent: 1411604 (2004-04-01), None
patent: 02/07235 (2002-01-01), None
Hung et al, Recent progress of molecular organic electroluminescent materials and devices, Mater. Sci. and Eng. Reports, vol. 39, No. 5-6, Dec. 2002, pp. 143-222.
“Circular Buried Heterostructure (CBH) GaA1As/GaAs Surface Emitting Lasers” by Susumu Kinoshita et al., IEEE Journal of Quantum Electronics, vol. QE 23, No. 6, Jun. 1987.
“Vertical-Cavity Surface Emitting Lasers: Moving from Research to Manufacturing” Kent D. Choquette, Proceedings of the IEEE, vol. 85, No. 11, Nov. 1997.
“Vertical-Cavity Surface-Emitting Lasers” by Carl W. Wilmsen, Cambridge University Press, 1999.
“2.5 Gbit/s 100m data transmission using graded-index polymer optical fibre and high-speed laser diode at 650nm wavelength” by T. Ishigure et al., Electroncis Letters, Mar. 16th, 1995, Voo. 31, No. 6.
“High-efficiency TEMoo continuous-wave (Al,Ga) aas epitaxial surface-emitting lasers and effect of half-wave periodic gain”, by P. L. Gourley, et al., Applied Physics Letter 54 (103), Mar. 27, 1989.
Kahen Keith B.
Lebens John A.
Shantharama Lingadahalli G.
Nguyen Tuan N.
Owens Raymond L.
LandOfFree
Modulating the properties of the gain region at spaced... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modulating the properties of the gain region at spaced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulating the properties of the gain region at spaced... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3592072