Opposite temperature effects of quantum-dot laser under dual-wavelength operation | Zendy

Hsueh-Shih Fan | Zendy; Yi-Shin Su | Zendy; Fei-Hung Chu | Zendy; Fu-Yu Chang | Zendy; HaoHsiung Lin | Zendy; ChingFuh Lin | Zendy

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Opposite temperature effects of quantum-dot laser under dual-wavelength operation

Author(s) -

Hsueh-Shih Fan,

Yi-Shin Su,

Fei-Hung Chu,

Fu-Yu Chang,

HaoHsiung Lin,

ChingFuh Lin

Publication year - 2007

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 - 10.1063/1.2735543

Subject(s) - quantum dot laser , excited state , laser , quantum dot , ground state , physics , wavelength , laser power scaling , power (physics) , materials science , condensed matter physics , optoelectronics , semiconductor laser theory , atomic physics , optics , quantum mechanics

The authors discover opposite temperature effects when the quantum-dot (QD) laser is controlled to simultaneously oscillate at two modes in the external cavity. The two modes correspond to the ground state and the first excited state of the QDs. Experiments show that the power of one mode increases, while the power of the other mode decreases as the temperature increases. The power variation between these two modes is similar to the situation of competition and anticompetition of laser modes. The physical reason is discussed in detail.

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