Extremely high-frequency self-pulsations in chirped-grating distributed-feedback semiconductor lasers | Zendy

Yuan-Hwang Liao | Zendy; Herbert G. Winful | Zendy

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Extremely high-frequency self-pulsations in chirped-grating distributed-feedback semiconductor lasers

Author(s) -

Yuan-Hwang Liao,

Herbert G. Winful

Publication year - 1996

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.117753

Subject(s) - semiconductor laser theory , laser , grating , distributed feedback laser , optics , terahertz radiation , semiconductor , chirp , optoelectronics , physics , coupling (piping) , diffraction grating , materials science , metallurgy

We show that an asymmetrically chirped, single‐section distributed‐feedback (DFB) laser is capable of sustained self‐pulsations at frequencies in excess of 200 GHz. These pulsations arise from mode beating and are absent in uniform or symmetrically chirped DFB lasers. For sufficiently large coupling constants, the pulsation frequency can approach a terahertz. © 1996 American Institute of Physics

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