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Low voltage, room temperature, ridge waveguide green-blue diode laser

Low voltage, room temperature, ridge waveguide green-blue diode laser

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Ridge waveguide quantum well (QW) diode lasers in the green/blue region have been operated at voltages as low as 7 V in ZnCdSe/ZnSSe/ZnMgSSe pseudomorphic separate confinement heterostructures. These lasers include a p-Zn(Se, Te) graded gap ohmic contact layer to the top metal electrode. Without any attempt at heatsinking, and without reflective facet coatings, these devices have operated at pulsed duty cycles of 20% at room temperature, with average power output of several milliwatts.

References

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      • Haase, M., Depuydt, J., Qiu, J., Cheng, H.: `Room temperature II-VI lasers with 25 mA thresholds', Device Research Conf., June 1993, Santa Barbara, CA.
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      • J.M. Gaines , R.R. Drenten , K.W. Haberern , T. Marshall , P. Mensz , J. Petruzzello . Blue-green injection lasers containing pseudomorphic ZnMgSSe cladding layers and operating up to 394K. Appl. Phys. Lett. , 2462 - 2464
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