Influence of external cavity feedback on the oscillating characteristics of a semiconductor laser | Zendy

Chong Liu | Zendy; Ge Jian-Hong | Zendy; Jun Chen | Zendy

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Influence of external cavity feedback on the oscillating characteristics of a semiconductor laser

Author(s) -

Chong Liu,

Ge Jian-Hong,

Jun Chen

Publication year - 2006

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.55.5211

Subject(s) - semiconductor , laser , semiconductor laser theory , physics , diode , laser diode rate equations , power (physics) , optics , semiconductor optical gain , photon , distributed feedback laser , laser power scaling , consistency (knowledge bases) , laser diode , materials science , optoelectronics , injection seeder , quantum mechanics , geometry , mathematics

Through the introduction of effective reflectivity, the influence of external optical feedback on the oscillating characteristics of a semiconductor laser is discussed, such as the threshold gain, laser frequency and output power, according to the self-consistency condition and the photon and carrier density ratio equation. In the experiment, the threshold current of a laser diode decreased from 420mA to 370mA with external cavity feedback and the slope efficiency increased. The output power obtained by theoretical simulation agrees well with the experiment results.

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