Gain Nonlinearity and Its Temperature Dependence in Bulk and Quantum-Well Quaternary Lasers

A. A. Bernussi; H. Temkin; D. L. Coblentz; R. A. Logan

doi:10.1109/68.376798

Gain Nonlinearity and Its Temperature Dependence in Bulk and Quantum-Well Quaternary Lasers

A. A. Bernussi, H. Temkin, D. L. Coblentz, R. A. Logan

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Spectrally resolved measurements of unclamped spontaneous emission above threshold in 1.3 µm InGaAsP bulk double heterostructure and compressively strained multiquantum-well lasers are analyzed using steady state rate equations. Both types of structures are characterized by nonlinear gain coefficients in the range of (2.7 -3.0) × 10-17 cm3at 20 °C. The nonlinear gain coefficient decreases with increasing temperature due to thermionic emission of carriers out of the active region and decreasing differential gain. The former effect was found to be more pronounced in quantum-well lasers. Excellent agreement with the rate equation based model is obtained.

Original language	English
Pages (from-to)	348-350
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	7
Issue number	4
DOIs	https://doi.org/10.1109/68.376798
State	Published - Apr 1995

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abstract = "Spectrally resolved measurements of unclamped spontaneous emission above threshold in 1.3 µm InGaAsP bulk double heterostructure and compressively strained multiquantum-well lasers are analyzed using steady state rate equations. Both types of structures are characterized by nonlinear gain coefficients in the range of (2.7 -3.0) × 10-17 cm3at 20 °C. The nonlinear gain coefficient decreases with increasing temperature due to thermionic emission of carriers out of the active region and decreasing differential gain. The former effect was found to be more pronounced in quantum-well lasers. Excellent agreement with the rate equation based model is obtained.",

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AU - Bernussi, A. A.

AU - Temkin, H.

AU - Coblentz, D. L.

AU - Logan, R. A.

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AB - Spectrally resolved measurements of unclamped spontaneous emission above threshold in 1.3 µm InGaAsP bulk double heterostructure and compressively strained multiquantum-well lasers are analyzed using steady state rate equations. Both types of structures are characterized by nonlinear gain coefficients in the range of (2.7 -3.0) × 10-17 cm3at 20 °C. The nonlinear gain coefficient decreases with increasing temperature due to thermionic emission of carriers out of the active region and decreasing differential gain. The former effect was found to be more pronounced in quantum-well lasers. Excellent agreement with the rate equation based model is obtained.

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