تقرير
Room Temperature Operation of a Buried Heterostructure Photonic Crystal Quantum Cascade Laser
العنوان: | Room Temperature Operation of a Buried Heterostructure Photonic Crystal Quantum Cascade Laser |
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المؤلفون: | Peretti, R., Liverini, V., Wolf, J. M., Bonzon, C., Süess, M. J., Lourdudoss, S., Metaferia, W., Beck, M., Faist, J. |
سنة النشر: | 2015 |
المجموعة: | Physics (Other) |
مصطلحات موضوعية: | Physics - Optics |
الوصف: | High power single mode quantum cascade lasers with a narrow far field are important for several applications including surgery or military countermeasure. Existing technologies suffer from drawbacks such as operation temperature and scalability. In this paper we introduce a fabrication approach that potentially solves simultaneously these remaining limitations. We demonstrate and characterize deep etched, buried photonic crystal quantum cascade lasers emitting around a wavelength of 8.5 {\mu}m. The active region was dry etched before being regrown with semi-insulating Fe:InP. This fabrication strategy results in a refractive index contrast of 10% allowing good photonic mode control, and simultaneously provides good thermal extraction during operation. Single mode emission with narrow far field pattern and peak powers up to 0.88 W at 263 K were recorded from the facet of the photonic crystal laser, and lasing operation was maintained up to room temperature. The lasing modes emitted from square photonic crystal mesas with a side length of 550{\mu}m, were identified as slow Bloch photonic crystal modes by means of three-dimensional photonic simulations and measurements. |
نوع الوثيقة: | Working Paper |
DOI: | 10.1002/lpor.201600047 |
URL الوصول: | http://arxiv.org/abs/1502.03940 |
رقم الأكسشن: | edsarx.1502.03940 |
قاعدة البيانات: | arXiv |
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