Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Jacob M. Hammer"'
Publikováno v:
Journal of Lightwave Technology. 22:1754-1763
This paper investigates the effect of a high-refractive-index layer added onto the clad layer of an optical waveguide. With proper design, the value of the fundamental mode's confinement factor in the added layer can exhibit a resonance. This resonan
Publikováno v:
IEEE Journal of Quantum Electronics. 28:1305-1309
Talbot filters can provide passive lateral mode control in monolithic two-dimensional phased arrays of grating surface emitting lasers. This was shown with computer modeling by numerical integration of the interference of Huygens wavelets and by expe
Autor:
W.F. Ferguson, R. K. DeFreez, D.P. Bour, C.A. Wang, Jacob M. Hammer, H.K. Choi, R. E. Farkas, R.C. Lai, James N. Walpole, Jerome K. Butler, M. Lurie, P.F. Pelka, Marc K. Felisky, W. F. Reichert, J.B. Kirk, Nils W. Carlson, H. Lee, Robert Amantea, S.K. Liew, Gary A. Evans
Publikováno v:
IEEE Journal of Quantum Electronics. 27:1594-1608
Recent progress in the development of monolithic two-dimensional coherent grating surface emitting (GSE) laser arrays is presented. Such GSE arrays have operated continuously to more than 3 W/surface and pulsed to more than 30 W/surface. They have ac
Publikováno v:
IEEE Journal of Quantum Electronics. 26:1023-1038
The modes and threshold gain characteristics of two-dimensional grating-surface-emitting diode laser arrays that are evanescently coupled in the lateral direction and mutually injection coupled in the longitudinal direction are analyzed. The ratio of
Autor:
C. J. Kaiser, W. F. Reichert, Jacob M. Hammer, L. A. Carr, Nils W. Carlson, E. A. James, Gary A. Evans, Jay B. Kirk, Robert Amantea, F. Z. Hawrylo, S. L. Palfrey, M. Lurie
Publikováno v:
Conference Proceedings LEOS Lasers and Electro-Optics Society.
Autor:
Jerome K. Butler, Nils W. Carlson, Jacob M. Hammer, Robert Amantea, S. L. Palfrey, Gary A. Evans, M. Lurie
Publikováno v:
Conference Proceedings LEOS Lasers and Electro-Optics Society.
Autor:
R. K. DeFreez, James N. Walpole, Jacob M. Hammer, Marc K. Felisky, S.K. Liew, Jerome K. Butler, H.K. Choi, N. W. Carlson, R. Stolzenberger, Christine A. Wang, Gary A. Evans, R. Amantea, David P. Bour, W. F. Reichert, Jay B. Kirk
Publikováno v:
Journal of Applied Physics. 70:7645-7647
Coherent cw operation of a 10×10×2 grating‐surface‐emitting diode laser array in a ring configuration is demonstrated. At near twice the threshold current, the ring array exhibits a high degree of spatial coherence (an average of 86%) between e
Autor:
Ronald E. Enstrom, Jacob M. Hammer, Gary A. Evans, J.R. Appert, E. A. Vangieson, A. Triano, James T. Andrews, Ramon U. Martinelli, N. W. Carlson, S. L. Palfrey, R. Stolzenberger
Publikováno v:
Applied Physics Letters. 59:2790-2792
We have demonstrated high‐power linear arrays of InGaAs/InGaAsP grating‐surface‐emitting lasers operating at a wavelength of 1.5 μm and emitting over 200 mW cw and 400 mW pulsed power. Arrays 1 cm in length exhibit coherent, mutual‐injection
Autor:
R. Stolzenberger, A. Triano, E. A. Vangieson, James T. Andrews, Ronald E. Enstrom, N. W. Carlson, J.R. Appert, Ramon U. Martinelli, S. L. Palfrey, Gary A. Evans, Jacob M. Hammer
Publikováno v:
Applied Physics Letters. 57:2753-2755
We have demonstrated linear and two‐dimensional arrays of grating‐surface‐emitting lasers operating at 1.5 μm. The gain sections are 400‐μm‐long InGaAs/InGaAsP multiple quantum well ridge‐guide diode lasers, connected by waveguide outpu
Autor:
S. L. Palfrey, Jon Orloff, R. K. DeFreez, D.J. Bossert, Gary A. Evans, Jacob M. Hammer, David P. Bour, Robert Amantea, Nils W. Carlson, H. Ximen, J. M. Hunt, Richard A. Elliott, G. A. Wilson, M. Lurie
Publikováno v:
Applied Physics Letters. 56:2068-2070
A monolithic grating‐surface‐emitting ring laser has been fabricated and its spectral properties and far‐field radiation pattern studied. The ring laser was configured from two columns of two‐dimensional grating‐surface‐emitting diode las