Modeling full PCSELs and VCSELs using modified rigorous coupled-wave analysis
Modeling full PCSELs and VCSELs using modified rigorous coupled-wave analysis
An integrated rigorous coupled-wave analysis (RCWA) algorithm is presented in this paper, which can simulate full vertical-cavity surface-emitting laser (VCSEL) and photonic crystal surface-emitting laser (PCSEL) structures. A classic RCWA can only analyze a structure when the light source is incident from the top, bottom, or both sides of the device. However, for VCSEL applications, the light source is generated in the middle and propagates in both directions. A bidirectional scattering matrix method and doubling algorithm are implemented in RCWA. The resonant wavelength and Q factor of a VCSEL can then be found in the output spectrum. The accuracy and execution speed are compared with those of the Lumerical finite-difference time-domain (FDTD) method for several VCSEL and PCSEL designs. The results show that the maximum discrepancy between RCWA and FDTD is less than 3 nm, and the difference in the far-field divergence angle is less than 0.5°. The speed of RCWA also outperforms FDTD simulation significantly.
22169-22180
Xu, Jingxiao
6a01b40f-4a5c-4908-a2b9-61433a03757e
McCulloch, Douglas
4a80b4fd-41a9-436b-8e45-92eb1dbd0b18
Charlton, Martin D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
17 June 2024
Xu, Jingxiao
6a01b40f-4a5c-4908-a2b9-61433a03757e
McCulloch, Douglas
4a80b4fd-41a9-436b-8e45-92eb1dbd0b18
Charlton, Martin D.B.
fcf86ab0-8f34-411a-b576-4f684e51e274
Xu, Jingxiao, McCulloch, Douglas and Charlton, Martin D.B.
(2024)
Modeling full PCSELs and VCSELs using modified rigorous coupled-wave analysis.
Optics Express, 32 (13), .
(doi:10.1364/OE.522484).
Abstract
An integrated rigorous coupled-wave analysis (RCWA) algorithm is presented in this paper, which can simulate full vertical-cavity surface-emitting laser (VCSEL) and photonic crystal surface-emitting laser (PCSEL) structures. A classic RCWA can only analyze a structure when the light source is incident from the top, bottom, or both sides of the device. However, for VCSEL applications, the light source is generated in the middle and propagates in both directions. A bidirectional scattering matrix method and doubling algorithm are implemented in RCWA. The resonant wavelength and Q factor of a VCSEL can then be found in the output spectrum. The accuracy and execution speed are compared with those of the Lumerical finite-difference time-domain (FDTD) method for several VCSEL and PCSEL designs. The results show that the maximum discrepancy between RCWA and FDTD is less than 3 nm, and the difference in the far-field divergence angle is less than 0.5°. The speed of RCWA also outperforms FDTD simulation significantly.
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Accepted/In Press date: 23 May 2024
Published date: 17 June 2024
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© 2024 American Society for Microbiology. All Rights Reserved.
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Local EPrints ID: 490616
URI: http://eprints.soton.ac.uk/id/eprint/490616
ISSN: 1094-4087
PURE UUID: 324a8e13-c742-4520-8e18-be35d8a7e514
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Date deposited: 31 May 2024 16:42
Last modified: 12 Jul 2024 02:16
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Author:
Jingxiao Xu
Author:
Douglas McCulloch
Author:
Martin D.B. Charlton
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