Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 30, Issue 4, Pages 351-354Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2018.2789847
Keywords
Subwavelength gratings; quantum cascade lasers; vertical-cavity surface-emitting lasers
Funding
- Polish National Centre for Research and Development [PBS2/A3/15/2013 PROFIT]
- Polish National Science Center [2014/15/B/ST7/05258]
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This letter shows the possibility of stimulated emission in quantum cascades (QCs) embedded in a vertical cavity and proposes a first design for the QC vertical-cavity surface-emitting laser (QC VCSEL). In the proposed design, the top VCSEL mirror is a monolithic high-refractive-index contrast grating, which serves as both an optical coupler and as the region in which the vertical component of the electrical field is induced, enabling stimulating emission from the QCs. Using a three-dimensional, fully vectorial optical model combined with an electrical model and gain model, the distribution of the optical field, threshold current, emitted optical power, and wall-plug efficiency of a 9 mu m AlInAs/InGaAs/InP QC VCSEL are simulated.
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