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Highly Power-Efficient Quantum Cascade Lasers with Ultra-Strong Coupling Injection
Princeton Docket # 09-2561 The transport of electrons from the injector ground level to the upper laser level in the active region of a QC laser significantly influences the laser performance. The stronger the coupling between these two levels, the faster electrons can be transferred into the active region, the better is the performance of th...
Low-Cost Single-mode Quantum Cascade Lasers
Princeton Docket # 10-2622 Currently available commercial single-mode QC lasers either employ distributed feedback or external cavity technique to achieve single-mode emission. Due to the complexity and yield issue of these techniques, the costs and thus the sale prices for single-mode QC lasers are very high, which is a crucial barrier to th...