Coherent Coupling of Multiple Transverse Modes in Quantum Cascade Lasers
| Title: | Coherent Coupling of Multiple Transverse Modes in Quantum Cascade Lasers |
| Author: |
Yu, Nanfang; Diehl, Laurent; Cubukcu, Ertugrul; Bour, David; Corzine, Scott; Hoefler, Gloria; Wojcik, Aleksander K.; Crozier, Kenneth B.; Belyanin, Alexey; Capasso, Federico
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Yu, Nanfang, Laurent Diehl, Ertugrul Cubukcu, David Bour, Scott Corzine, Gloria Hofler, Aleksander K. Wojcik, Kenneth B. Crozier, Alexey Belyanin, Federico Capasso. 2009. Coherent coupling of multiple transverse modes in quantum cascade lasers. Physical Review Letters 102(1): 013901. |
| Full Text & Related Files: |
Nanfang_PRL_102_013901_2009.pdf (940.6Kb; PDF) 
|
| Abstract: | Quantum cascade lasers are a unique laboratory for studying nonlinear laser dynamics because of their high intracavity intensity, strong intersubband optical nonlinearity, and an unusual combination of relaxation time scales. Here we investigate the nonlinear coupling between the transverse modes of quantum cascade lasers. We present evidence for stable phase coherence of multiple transverse modes over a large range of injection currents. We explain the phase coherence by a four-wave mixing interaction originating from the strong optical nonlinearity of the gain transition. The phase-locking conditions predicted by theory are supported by spectral data and both near- and far-field mode measurements. |
| Published Version: | doi:10.1103/PhysRevLett.102.013901 |
| Other Sources: | http://www.seas.harvard.edu/capasso/publications/Nanfang_PRL_102_013901_2009.pdf |
| Terms of Use: | This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:3448582 |
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