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Distributed feedback device characterization using a continuous wave model.

E T Koenig, M A Karim

|June 23, 2010

Summary

This summary is machine-generated.

This study solves the continuous-wave (cw) equation for aperiodic distributed feedback structures with gain and modulated refractive index. The findings validate the cw approach by correlating its solutions with a coupled-wave model for various structures.

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Area of Science:

Photonics and Optics
Materials Science

Background:

Distributed feedback (DFB) structures are crucial in photonics.
Characterizing aperiodic DFB structures requires robust theoretical models.
Gain and refractive index modulation significantly impact DFB performance.

Purpose of the Study:

To solve the second-order continuous-wave (cw) equation for DFB structures with gain and modulated refractive index.
To characterize aperiodic DFB structures using this model.
To compare the cw solutions with a coupled-wave model.

Main Methods:

Solving the second-order cw equation for optical media with gain and modulated refractive index.
Analyzing tapered, chirped, and phase-shifted aperiodic DFB structures.
Comparing results with a coupled-wave model.

Main Results:

The cw equation provides a valid characterization for aperiodic DFB structures.
Solutions from the cw approach correlate well with the coupled-wave model.
The cw approach is validated for tapered, chirped, and phase-shifted structures.

Conclusions:

The continuous-wave (cw) approach is a reliable method for analyzing aperiodic distributed feedback structures.
The model accurately describes structures with gain and modulated refractive index.
This work supports the use of cw analysis in photonic device design.