Structure, Stability, and Spectra of Lateral Modes of a Broad-Area Semiconductor Laser

Blaaberg, Søren; Petersen, Paul Michael; Tromborg, B.

doi:10.1109/jqe.2007.904520

Cited by 15 publications

(10 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To exemplify, in [34] coupling strength of lateral gratings operate more effectively in the multimode regime because the lateral profile of the higher-order modes shows an adequate overlap with the grating area. Another benefit of the higher-order modes in the case of high power laser generations is demonstrated in [35] and [36]. Moreover, dispersion properties of higher-order spatial modes in optical fibers can be used to compensate the positive dispersion in conventional single-mode fiber spans [37].…”

Section: Problem Definition: the Need For A Mode Conversion Devicementioning

confidence: 99%

Mode transformation using graded photonic crystals with axial asymmetry

et al. 2013

View full text Add to dashboard Cite

We propose a mode conversion method that enables transformation of the propagating mode from fundamental to higher-order modes by utilizing asymmetric graded index (A-GRIN) structures. Refractive index variations of two different asymmetric gradient profiles, i.e., exponential and Luneburg lens profiles, have been approximated by two-dimensional photonic crystals (PCs). The basic structure is composed of constant radii with different lattice sizes. The designed GRIN mode converters provide relatively high transmission efficiency in the spectral region of interest and achieve the transformation in compact configuration. Numerical approaches utilizing the finitedifference time-domain and plane wave expansion methods are used to analyze the mode conversion phenomenon of proposed GRIN PC media. Analytical formulation based on ray theory is outlined to explore both ray trajectories and the physical concept of a wavefront retardation mechanism.

show abstract

Section: Problem Definition: the Need For A Mode Conversion Devicementioning

confidence: 99%

Mode transformation using graded photonic crystals with axial asymmetry

et al. 2013

View full text Add to dashboard Cite

show abstract

“…In the time domain, selfpulsing and chaos can also occur, particularly if light is fed back into the nonlinear medium with a time delay (Goldstone, 1983). Such nonlinearities are seen particularly in lasers (Blaaberg, 2007) and nonlinear fibers (Kibler, 2010).…”

Section: Nlo Topics Not Coveredmentioning

confidence: 99%

Overview of Nonlinear Optics

Garmire¹

2012

Nonlinear Optics

View full text Add to dashboard Cite

“…Then, we need to obtain and hence for only. From the boundary conditions (24), vectors are obtained as (29) where is the matrix (30) Having obtained and , we may calculate from (25). The Green's functions to be used when obtaining in (22) are then found using .…”

Section: Small-signal Analysismentioning

confidence: 99%

“…The field power spectrum is the Fourier transform of the field autocorrelation function (51) We use the following approximate expression for (see [24] and [25]):…”

Section: Expressions For Noise Spectramentioning

confidence: 99%

General Method for Calculating the Response and Noise Spectra of Active Fabry–Perot Semiconductor Waveguides With External Optical Injection

Blaaberg

Mørk

2009

IEEE J. Quantum Electron.

Self Cite

View full text Add to dashboard Cite

Abstract-We present a theoretical method for calculating small-signal modulation responses and noise spectra of active Fabry-Perot semiconductor waveguides with external light injection. Small-signal responses due to either a modulation of the pump current or due to an optical amplitude or phase modulation of the input field can be calculated. Both responses and noise spectra are given through semianalytical expressions taking into account the longitudinal extent and finite end-facet reflectivities of the active device. Different examples of responses and spectra are presented for semiconductor optical amplifiers and an injection-locked laser. We also demonstrate the applicability of the method to analyze slow and fast light effects in semiconductor waveguides. Finite reflectivities of the facets are found to influence the phase changes of the injected microwave-modulated light.

show abstract

Structure, Stability, and Spectra of Lateral Modes of a Broad-Area Semiconductor Laser

Cited by 15 publications

References 27 publications

Mode transformation using graded photonic crystals with axial asymmetry

Mode transformation using graded photonic crystals with axial asymmetry

Overview of Nonlinear Optics

General Method for Calculating the Response and Noise Spectra of Active Fabry–Perot Semiconductor Waveguides With External Optical Injection

Contact Info

Product

Resources

About