Performance and reliability improvement of 905 nm high power laser diode by design, fabrication and characterization of high damage threshold mirrors

Ghadimi-Mahani, A.; Goodarzi, A.; Farsad, E.; Tahamtan, S.; Nabavi, Seyed Hassan

doi:10.1016/j.microrel.2021.114070

Cited by 6 publications

(1 citation statement)

References 38 publications

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“…17 Besides, the two phenomena that cause the reduction in laser output power are catastrophic optical damage 18 and spatial hole burning. 19 Depending on the laser diode application, various layers of the laser diode may be engineered for desired power conversion efficiency, 20 and optical power, 21,22 ) Asymmetric designs, 23 Large Optical Cavities, 24 and SCH 25 have all been used in the past to create cladding and waveguide layers. AlGaN graded index SCH have also been reported.…”

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Graded Cladding Layers in Infrared III-Arsenide Separate Confinement Heterostructure Laser Diodes

Saeed

Usman

Aamir

et al. 2023

ECS J. Solid State Sci. Technol.

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When n-cladding and p-cladding layer are graded, and the aluminum (Al) content is increased to 85% in a single quantum well separate confinement heterostructure laser diode, the result is improved optoelectronic performance. The output power is increased to 45 mW by using graded cladding layers. In addition, the lasing threshold current density is also lowered, which results in a significant optical gain. The stimulated emission rate also improves due to improved electron-hole recombination and thus resulting in improved lasing.

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