Zobrazeno 1 - 10
of 210
pro vyhledávání: '"G.R. Hadley"'
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 15:153-158
The irradiances or fluences encountered in pulsed fiber lasers and amplifiers are sometimes high enough to destroy the fiber. The ultimate limit is set by the intrinsic damage threshold irradiance of doped silica. Other nonlinear processes such as se
Autor:
G.R. Hadley
Publikováno v:
Journal of Lightwave Technology. 25:2367-2375
We present a new algorithm for wide-angle propagation through a general class of optical-waveguide structures defined by dielectric interfaces that may be slanted with respect to the direction of propagation. No regularity of the structure shapes is
Autor:
G.R. Hadley
Publikováno v:
Journal of Lightwave Technology. 20:1219-1231
For part I see ibid., p. 1210, 2002. We present a discussion of the behavior of the electric and magnetic fields satisfying the two-dimensional Helmholtz equation for waveguides in the vicinity of a dielectric corner. Although certain components of t
Autor:
G.R. Hadley
Publikováno v:
Journal of Lightwave Technology. 20:1210-1218
A methodology is presented that allows the derivation of low-truncation-error finite-difference representations or the two-dimensional Helmholtz equation, specific to waveguide analysis. This methodology is derived from the formal infinite series sol
Autor:
G.R. Hadley
Publikováno v:
Journal of Lightwave Technology. 16:134-141
A methodology is presented that allows the derivation of low-truncation-error finite difference equations for photonics simulation. This methodology is applied to the case of wide-angle beam propagation in two dimensions, resulting in finite differen
Autor:
G.R. Hadley
Publikováno v:
Journal of Lightwave Technology. 16:142-151
For part I see, ibid., p. 134, 1998. The basic approach outlined in the previous article is applied to the difficult problem of computing the optical modes of a vertical-cavity surface-emitting laser. The formulation utilizes a finite difference equa
Design, fabrication, and performance of infrared and visible vertical-cavity surface-emitting lasers
Publikováno v:
IEEE Journal of Quantum Electronics. 33:1810-1824
This paper discusses the issues involving the design and fabrication of vertical-cavity surface-emitting lasers (VCSELs). A review of the basic experimental structures is given, with emphasis on recent developments in distributed Bragg reflectors, ga
Publikováno v:
IEEE Journal of Quantum Electronics. 32:607-616
We present a comprehensive numerical model for vertical-cavity surface-emitting lasers that includes all major processes affecting cw operation of axisymmetric devices. In particular, our model includes a description of the 2-D transport of electrons
Publikováno v:
Journal of Lightwave Technology. 14:169-172
A rib optical waveguide using the concept of optical cutoff to provide isolation between adjacent waveguides in a photonic integrated circuit is disclosed. Due to the evanescent nature of light propagation in cutoff waveguides, this cutoff mesa rib w
Autor:
R.E. Smith, G.R. Hadley
Publikováno v:
Journal of Lightwave Technology. 13:465-469
We describe a finite difference solution technique for the full-vector waveguide equation based upon the alternating-direction-implicit (ADI) iterative method. Our technique accurately treats dielectric boundaries (including corners), requires minima