Reciprocity principle and nonequivalence of counterpropagating modes in whistle-geometry ring lasers
| Autor: | Fei-Hung Chu, Gennady A. Smolyakov, Hemashilpa Kalagara, Marek Osinski |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Photon media_common.quotation_subject 020208 electrical & electronic engineering Finite-difference time-domain method Physics::Optics Ring laser 02 engineering and technology Distributed Bragg reflector Laser Asymmetry law.invention 020210 optoelectronics & photonics Helmholtz reciprocity Modulation law Quantum mechanics 0202 electrical engineering electronic engineering information engineering media_common |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| Popis: | Greatly enhanced high-speed modulation performance has been recently predicted in numerical calculations for a novel injection-locking scheme involving a distributed Bragg reflector master laser monolithically integrated with a unidirectional whistle-geometry semiconductor micro ring laser. In this work, we confirm the unidirectionality of the whistle-geometry configuration through rigorous three-dimensional finite-difference time-domain (FDTD) simulation by showing a strong asymmetry in photon lifetimes between the two counter propagating modes. At the same time, we explain why this result does not violate the Helmholtz reciprocity principle. |
| Databáze: | OpenAIRE |
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