Single mode PT symmetric large area lasers
نویسندگان
چکیده
We experimentally demonstrate single longitudinal mode operation in microring laser using the concept of PT symmetry. A PT-symmetric coupled resonator arrangement can considerably enhance the maximum achievable gain of single mode microring cavity. The method is broadband thus work well for inhomogenously broadened gain mediums. It doesn’t rely on any additional component to ensure its mode selective performance, and it is robust with respect to fabrication inaccuracies. This result may pave the way for a novel way of designing integrated laser sources based on PT symmetry.
منابع مشابه
PT-symmetric microring lasers
Mohammad-Ali Miri,* Hossein Hodaei, Matthias Heinrich, Mercedeh Khajavikhan, Demetrios N. Christodoulides CREOL, College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816-2700, USA [email protected] Abstract: We show that a multimode laser cavity when accompanied by an identical but lossy partner can lase at a single longitudinal mode. Our experimental results de...
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