研究目的
Investigating the small-signal modulation response of vertical-cavity surface-emitting lasers (VCSELs) using a numerical model that does not require fitting dynamic measurement parameters.
研究成果
The numerical model accurately simulates the small-signal modulation response of VCSELs without the need for fitting dynamic measurement parameters. It provides insights into the impact of the number of quantum wells in the active region on modulation properties, offering a tool for designing VCSELs with improved performance.
研究不足
The model is applicable only to small signal modulation and assumes stable modal operation. It is limited to single-optical-mode operation and cannot be used for large-signal modulation without significant modifications.
1：Experimental Design and Method Selection:
The model utilizes a static model of continuous-wave (CW) operation for a given bias voltage to simulate the small-signal modulation (SSM) response without fitting dynamic measurement parameters.
2：Sample Selection and Data Sources:
Experimental SSM characteristics of a VCSEL are compared with simulation results.
3：List of Experimental Equipment and Materials:
The study involves gallium-arsenide-based VCSELs emitting at 980 nm.
4：Experimental Procedures and Operational Workflow:
The model is verified by comparing simulated and measured SSM characteristics.
5：Data Analysis Methods:
The impact of the number of quantum wells in the active region on the modulation properties is analyzed.
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