| Autor: |
M.P. Sharma, A. Gavrielides, D. A. Cardimona, Vassilios Kovanis |
| Rok vydání: |
1995 |
| Předmět: |
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| Zdroj: |
IEEE Journal of Quantum Electronics. 31:60-66 |
| ISSN: |
0018-9197 |
| DOI: |
10.1109/3.341708 |
| Popis: |
In this paper, we study the reflection coefficient of a periodic Bragg reflecting structure in which there exists both an index-of-refraction grating as well as a gain grating. Most past studies have assumed that these two gratings were in phase with each other. In the present work we investigate the effects that arise when a phase shift is purposely introduced between the two gratings. We use a normal coupled-wave analysis to calculate the reflection coefficient as a function of the detuning away from the Bragg frequency when this grating phase difference is varied from 0 to 2/spl pi/. We find particular phase difference values for which essentially a single-line reflection coefficient results, which in turn should produce narrow-band, single-mode operation of any device utilizing this Bragg structure for distributed feedback purposes. > |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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