Equivalent circuit model analysis and parameter extraction of DFB semiconductor laser based on rate equations

Qunying Yang; Xudong Cheng; Huixin Liu; Qing-an Ding; Zhenfei Dai; Jun Li; Jianyu Li; Qun Niu

doi:10.1117/12.2652020

15 December 2022 Equivalent circuit model analysis and parameter extraction of DFB semiconductor laser based on rate equations

Qunying Yang, Xudong Cheng, Huixin Liu, Qing-an Ding, Zhenfei Dai, Jun Li, Jianyu Li, Qun Niu

Author Affiliations +

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 1247811 (2022) https://doi.org/10.1117/12.2652020
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

The output characteristics of distributed feedback (DFB) lasers are greatly affected by different values of the parameters in rate equations. However, there is a lack of simple and feasible parameter extraction methods to determine the values of these parameters. In this paper, a straightforward method for modeling and parameter extraction of the equivalent circuit model for DFB laser based on rate equations is presented which mainly combines those intrinsic parameters into new parameters that can be easily extracted from the external performance of the laser. Before extraction, a laser equivalent circuit model is established based on the transformed rate equation, which can accurately simulate the nonlinear characteristics of DFB lasers. Moreover, based on the output characteristics of semiconductor lasers, the parameters of them are extracted by formula transformation and data fitting. The extracted parameter values are comparable to the reported theoretical and experimental data, validating the accuracy of the extraction method in this paper. Additionally, good agreement is reached between the simulation results and the reference data when the extracted parameter values are used in the model. Meanwhile, it turns out that changes in different physically plausible parameter values have different effects on the external output characteristics. In summary, the method of parameter extraction described in this paper has a good guiding significance for the improvement of laser manufacturing and performance.

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Qunying Yang, Xudong Cheng, Huixin Liu, Qing-an Ding, Zhenfei Dai, Jun Li, Jianyu Li, and Qun Niu "Equivalent circuit model analysis and parameter extraction of DFB semiconductor laser based on rate equations", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 1247811 (15 December 2022); https://doi.org/10.1117/12.2652020

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KEYWORDS

Semiconductor lasers

Optical simulations

Circuit switching

Data modeling

Amplitude modulation

Device simulation

Frequency modulation

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