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Vassallo, C.

doi:10.1023/a:1018537602159

Cited by 89 publications

(1 citation statement)

References 60 publications

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“…Ongoing developments of optoelectronic devices such as semiconductor lasers have required reliable tools for the analysis of their continuous waveguide elements. Many computational methods, [1] such as finite difference, [2] finite elements, [3] and finite difference beam propagation [4] methods have been developed. They are suitable for complex geometric structures, but require powerful computers and considerable CPU time.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Multilayer Waveguides Using Effective Refractive Index Method

Gao¹,

Cao²,

Feng³

2003

Commun. Theor. Phys.

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With the help of the effective refractive index method we have numerically analyzed a multilayer planar waveguide structure and calculated the propagation constants, confinement factors, and transverse electric (TE) modes. A five-layer waveguide model has been provided to analyze the electro-magnetic wave propagation process. The analysis method has been applied to the 980 nm laser with active layer of GaInAs/GaInAsP strained quantum wells, GaInAsP confinement layers and GaInP cap layers. By changing the thickness of confinement layers, we obtained confinement factor as high as 95% with higher TE modes TE1 and TE2. The results are in good agreement with the experiment by A. Al-Muhanna et al. and give the new idea to enhance output power of semiconductor lasers. The analysis method can also be extended to any other slab multilayer waveguide structures, and the results are useful to the fabrication of optic-electronic devices.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Multilayer Waveguides Using Effective Refractive Index Method

Gao¹,

Cao²,

Feng³

2003

Commun. Theor. Phys.

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Polyrod Antennas

Huang¹

2013

Modern Lens Antennas for Communications Engineering

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Analysis of rib waveguides by a fourth‐order accurate finite‐difference beam‐propagation method

Yamauchi

Murata

Nakano

2002

Electron Comm Jpn Pt II

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SUMMARYWhen a step index waveguide is analyzed by the finite-difference method, the treatment of the discontinuous refractive index profile is a problem. In this paper, while the boundary condition of the field is taken into account, the improved finite-difference equation in which the truncation error is reduced to the fourth order is combined with the alternate direction implicit solution method, formulating a three-dimensional beam propagation method with high computational efficiency. First, by means of the imaginary axis method, an eigenmode analysis of the rib waveguide is carried out so that the effectiveness and validity of the method are proven. Next, a beam propagation analysis is carried out for the rib waveguide taper. By taking into account the discontinuity location of the refractive index, the quantization error is found to be reduced.

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Untitled

Cited by 89 publications

References 60 publications

Numerical Analysis of Multilayer Waveguides Using Effective Refractive Index Method

Numerical Analysis of Multilayer Waveguides Using Effective Refractive Index Method

Polyrod Antennas

Analysis of rib waveguides by a fourth‐order accurate finite‐difference beam‐propagation method

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