Mitigating Heat Dissipation in Near- and Mid-Infrared Silicon-Based Raman Lasers Using CARS-Part II: Numerical Demonstration
The mitigation of quantum-defect heating in Raman lasers by the use of coherent anti-Stokes Raman scattering (CARS) is numerically demonstrated for two silicon-based waveguide Raman lasers pumped at a near-infrared (near-IR) wavelength around 1.5 m and at a mid-infrared (mid-IR) wavelength around 2....
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Published in | IEEE journal of selected topics in quantum electronics Vol. 13; no. 3; pp. 783 - 788 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
01.05.2007
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | The mitigation of quantum-defect heating in Raman lasers by the use of coherent anti-Stokes Raman scattering (CARS) is numerically demonstrated for two silicon-based waveguide Raman lasers pumped at a near-infrared (near-IR) wavelength around 1.5 m and at a mid-infrared (mid-IR) wavelength around 2.7 m, respectively. We show that, for the mid-IR laser, the CARS-based heat-mitigation technique attains an efficiency of 35%, whereas the corresponding efficiency for the near-IR laser without taking into account the two-photon-absorption-induced heat equals 15%. The discrepancy between these two values finds its origin in the fact that for the mid-IR laser (quasi-) perfect phase matching for the CARS process can be obtained more easily, and the loss of anti-Stokes photons due to stimulated anti-Stokes Raman scattering (SARS) can be reduced more efficiently. Furthermore, we discuss two important practical aspects of Raman lasers with CARS-based heat mitigation, and we find that this category of Raman lasers could be used as dual-wavelength sources emitting codirectional Stokes and anti-Stokes beams of comparable power. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1 |
ISSN: | 1077-260X 1558-4542 |
DOI: | 10.1109/JSTQE.2007.896624 |