Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2003-07-14
2008-08-19
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S046013, C372S050110
Reexamination Certificate
active
07415055
ABSTRACT:
Vertical cavity surface emitting lasers (VCSELs) and methods of making the same are described. The VCSELs include reliability-enhancing layers that perform specific functions at one or more critical locations within a VCSEL structure to reduce or prevent defect formation and migration that otherwise might degrade VCSEL performance, for example, by increasing optical absorption in the mirror stacks or by degrading the electro-optic properties of the active region. In particular, the reliability-enhancing layers are configured to perform one or more of the following functions within the VCSEL structure: gettering (i.e., removing defects or impurities from critical regions), strain balancing (i.e., compensating the lattice mismatch in the structure to minimize strain), and defect suppression (i.e., creating alloys that reduce the formation of defects during growth or post-growth activities). By strategically positioning one or more appropriately configured reliability-enhancing layers with respect to an identified defect source, the invention enables VCSEL structures to be modified in a way that enhances the reliability and performance of VCSEL devices.
REFERENCES:
patent: 4984242 (1991-01-01), Scifres et al.
patent: 5337327 (1994-08-01), Ackley
patent: 5359618 (1994-10-01), Lebby et al.
patent: 5493577 (1996-02-01), Choquette et al.
patent: 5719892 (1998-02-01), Jiang
patent: 5724374 (1998-03-01), Jewell
patent: 5835521 (1998-11-01), Ramdani et al.
patent: 5838705 (1998-11-01), Shieh et al.
patent: 5896408 (1999-04-01), Corzine et al.
patent: 5978408 (1999-11-01), Thornton
patent: 5985686 (1999-11-01), Jayaraman
patent: 5991321 (1999-11-01), Duggan
patent: 5991326 (1999-11-01), Yuen et al.
patent: 6014395 (2000-01-01), Jewell
patent: 6269109 (2001-07-01), Jewell
patent: 6628694 (2003-09-01), Deng et al.
patent: 2002/0150137 (2002-10-01), Beam et al.
patent: 10217304 (2002-10-01), None
patent: 0860913 (1996-08-01), None
patent: 0772266 (1997-05-01), None
patent: 2380606 (2003-04-01), None
patent: WO 00/36719 (2000-06-01), None
patent: WO 00/38287 (2000-06-01), None
patent: WO 02/37630 (2002-05-01), None
Karim, A., Black, Abraham P., etal. “Super Lattice Barrier 1528-nm Vertical-Cavity Laser with 85 'C Continuous-Waver Operation.” IEEE Photonics Technology Letters, vol. 12, No. 11 Nov. 2000 pp. 1438-1440.
Deng Qing
Herniman John
Avago Technologies Fiber IP Pte Ltd
Harvey Minsun Oh
Roy Tod T. Van
LandOfFree
Reliability-enhancing layers for vertical cavity surface... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reliability-enhancing layers for vertical cavity surface..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reliability-enhancing layers for vertical cavity surface... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4008840