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13 March 2024 Impact of electrical injection on PCSELs by utilizing different electrode designs
Chhabindra Gautam, Mingsen Pan, Subhashree Seth, Thomas Rotter, Ming Zhou, Ricky Gibson, Bradley Thompson, Shanhui Fan, Ganesh Balakrishnan, Weidong Zhou
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Proceedings Volume 12867, High-Power Diode Laser Technology XXII; 1286710 (2024) https://doi.org/10.1117/12.3002447
Event: SPIE LASE, 2024, San Francisco, California, United States
Abstract
We report a selective injection design for GaAs-based Photonic-Crystal Surface-Emitting Lasers (PCSELs). COMSOL and FDTD simulations are carried out to design the injection electrode size to achieve largest gain overlapping factors with optical mode and lowest gain threshold. The PCSEL devices are fabricated with GaAs-based Multiple Quantum Well (MQW) wafer. Devices with surface area of 250×250 μm2 are fabricated with different injection electrode sizes. Testing results show that the best beam properties and an output power of 750 mW were achieved with a 150 μm p-electrode design, demonstrating selective injection impact to PCSEL beam profile.
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Chhabindra Gautam, Mingsen Pan, Subhashree Seth, Thomas Rotter, Ming Zhou, Ricky Gibson, Bradley Thompson, Shanhui Fan, Ganesh Balakrishnan, and Weidong Zhou "Impact of electrical injection on PCSELs by utilizing different electrode designs", Proc. SPIE 12867, High-Power Diode Laser Technology XXII, 1286710 (13 March 2024); https://doi.org/10.1117/12.3002447
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KEYWORDS
Electrodes
Semiconductor lasers
Photonic crystals
Laser applications
Light sources
Materials processing
Materials properties
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