Self-mode-locking in quantum cascade lasers

被引:0
|
作者
Paiella, Roberto [1 ]
Capasso, Federico [1 ]
Gmachl, Claire [1 ]
Sivco, Deborah L. [1 ]
Baillargeon, James N. [1 ]
Hutchinson, Albert L. [1 ]
Cho, Alfred Y. [1 ]
Liu, H.C. [1 ]
机构
[1] Bell Lab, Murray Hill, United States
关键词
Active mode locking - Interference fringes - Laser waveguides - Multimode emission - Quantum cascade laser - Self mode locking;
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摘要
We report on the first observation of mode-locking of quantum cascade lasers (QCLs). Both self-mode-locking (SML) and active mode-locking have been achieved, although this talk will primarily focus on SML. All the devices used in this work are 'standard' QCLs, except for their relatively long ( 3.5 mm) waveguides. Experimental observations indicate that the nonlinear loss mechanism responsible for SML results from self-focusing in the laser waveguide.
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页码:715 / 716
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