Journal
OPTICAL MATERIALS EXPRESS
Volume 12, Issue 2, Pages 375-382Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.443294
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Funding
- Israel Ministry of Science and Technology
- Israel Ministry of Science and technology
- Israeli Ministry of Science for the Postdoc Fellowship
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First-order distributed feedback (DFB) lasers based on edge-emitting metal halide perovskites have been realized and studied for the first time. These lasers exhibit superior edge emission properties compared to the well-studied second-order DFB perovskite lasers, making them highly attractive for applications such as photonic integrated circuits. However, unexpectedly, the threshold levels of the first-order lasers are higher than those of the second-order devices, which is attributed to the efficiency of optical excitation depending on the incidence angle and grating period.
Edge-emitting metal halide perovskites-based 1st order distributed feedback lasers are realized and studied for the first time. The properties and performances of these devices are compared in details to those of the well-studied 2nd order DFB perovskite lasers. As expected, 1st order lasers exhibit superior properties in terms of edge emission, rendering them highly attractive for applications such as photonic integrated circuits. In addition, it is found that, unexpectedly, the threshold levels of the 1st order lasers are higher than those of the 2nd order devices. We show that this phenomenon stems from the efficiency of the optical excitation which depends on the incidence angle and the gratings period.
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