Design and analysis of InN − In0.25Ga0.75N single quantum well laser for short distance communication wavelength

Md. Mobarak Hossain Polash; M. Shah Alam; Saumya Biswas

doi:10.1117/1.OE.57.3.036110

16 March 2018 Design and analysis of InN − In_0.25Ga_0.75N single quantum well laser for short distance communication wavelength

Md. Mobarak Hossain Polash, M. Shah Alam, Saumya Biswas

Author Affiliations +

Optical Engineering, Vol. 57, Issue 3, 036110 (March 2018). https://doi.org/10.1117/1.OE.57.3.036110

Abstract

A single quantum well semiconductor laser based on wurtzite-nitride is designed and analyzed for short distance communication wavelength (at around 1300 nm). The laser structure has 12 Å well layer of InN, 15 Å barrier layer of In0.25Ga0.75N, and 54 Å separate confinement heterostructure layer of GaN. To calculate the electronic characteristics of the structure, a self-consistent method is used where Hamiltonian with effective mass approximation is solved for conduction band while six-bands Hamiltonian matrix with k · p formalism including the polarization effect, valence-band mixing effect, and strain effect is solved for valence band. The interband optical transition elements, optical gain, differential gain, radiative current density, spontaneous emission rate, and threshold characteristics have been calculated. The wave function overlap integral is found to be 45.93% for TE-polarized structure. Also, the spontaneous emission rate is found to be 6.57 × 1027 s − 1 cm − 3 eV − 1 at 1288.21 nm with the carrier density of 5 × 1019 cm − 3. Furthermore, the radiative current density and the radiative recombination rate are found to be 121.92 A cm − 2 and 6.35 × 1027 s − 1 cm − 3, respectively, while the TE-polarized optical gain of the structure is 3872.1 cm − 1 at 1301.7 nm.

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Md. Mobarak Hossain Polash, M. Shah Alam, and Saumya Biswas "Design and analysis of InN − In_0.25Ga_0.75N single quantum well laser for short distance communication wavelength," Optical Engineering 57(3), 036110 (16 March 2018). https://doi.org/10.1117/1.OE.57.3.036110

Received: 5 September 2017; Accepted: 22 February 2018; Published: 16 March 2018

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