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Analysis of optical...
Analysis of optical coupling behavior in two-dimensional implant-defined coherently coupled vertical-cavity surface-emitting laser arrays
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- Pan, G. Z. (author)
- Beijing University of Technology
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- Xie, Y. (author)
- Beijing University of Technology
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- Xu, Chen (author)
- Beijing University of Technology
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- Dong, Y. B. (author)
- Beijing University of Technology
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- Deng, J. U.N. (author)
- Beijing University of Technology
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- Chen, Hongda (author)
- Chinese Academy of Sciences
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- Sun, Jie, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Beijing University of Technology
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(creator_code:org_t)
- 2018
- 2018
- English.
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In: Photonics Research. - 2327-9125. ; 6:11, s. 1048-1055
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Abstract
Subject headings
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- Optical coupling behavior and associated effects in two-dimensional implant-defined coherently coupled vertical-cavity surface-emitting laser (VCSEL) arrays are studied via both experiments and theoretical calculations. Experiments show that optical coupling between array elements can enhance the array’s output power. Additionally, optical coupling via leaky optical fields can provide extra optical gain for the array elements, which can then reduce the thresholds of these elements. Elements can even be pumped without current injection to emit light by receiving a strong leaky optical field from other array elements. Optical coupling can also cause unusual phenomena: the central elements in large-area coherently coupled VCSEL arrays that lase prior to the outer elements when the arrays are biased, or the average injection current required for each element to lase, which is much lower than the threshold for a single VCSEL. Theoretical calculations are performed to explain the experimental results.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Surface emitting lasers
- Lasers
- Isomers
- Laser pulses
Publication and Content Type
- art (subject category)
- ref (subject category)
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