@article{article, title = {{Quantum cascade ring lasers: Unidirectional operation and coupled ring tuning}}, url = {{}}, year = {{2011}}, month = {{1}}, author = {{Nshii CC and Ironside CN and Sorel M and Slight TJ and Zhang SY and Revin DG and Cockburn JW}}, doi = {{10.1109/CLEOE.2011.5942564}}, journal = {{2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011}}, note = {{Accessed on 2025/05/24}}}