Operation of a novel hot-electron vertical-cavity surface-emitting laser

Naci Balkan; Angela O'Brien-Davies; A. Boland Thoms; Richard J. Potter; Nigel Poolton; Michael J. Adams; J. Masum; Alpan Bek; Ali Serpenguzel; Atilla Aydinli; John Stuart Roberts

doi:10.1117/12.316680

7 July 1998 Operation of a novel hot-electron vertical-cavity surface-emitting laser

Naci Balkan, Angela O'Brien-Davies, A. Boland Thoms, Richard J. Potter, Nigel Poolton, Michael J. Adams, J. Masum, Alpan Bek, Ali Serpenguzel, Atilla Aydinli, John Stuart Roberts

Author Affiliations +

Proceedings Volume 3283, Physics and Simulation of Optoelectronic Devices VI; (1998) https://doi.org/10.1117/12.316680
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

The hot Electron Light Emission and Lasing in Semiconductor Heterostructures devices (HELLISH-1) is novel surface emitter consisting of a GaAs quantum well, within the depletion region, on the n side of Ga_1-xAl_xAs p- n junction. It utilizes hot electron transport parallel to the layers and injection of hot electron hole pairs into the quantum well through a combination of mechanisms including tunnelling, thermionic emission and diffusion of `lucky' carriers. Super Radiant HELLISH-1 is an advanced structure incorporating a lower distributed Bragg reflector (DBR). Combined with the finite reflectivity of the upper semiconductor-air interface reflectivity it defines a quasi- resonant cavity enabling emission output from the top surface with a higher spectral purity. The output power has increased by two orders of magnitude and reduced the full width at half maximum (FWHM) to 20 nm. An upper DBR added to the structure defines HELLISH-VCSEL which is currently the first operational hot electron surface emitting laser and lases at room temperature with a 1.5 nm FWHM. In this work we demonstrate and compare the operation of UB-HELLISH-1 and HELLISH-VCSEL using experimental and theoretical reflectivity spectra over an extensive temperature range.

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Naci Balkan, Angela O'Brien-Davies, A. Boland Thoms, Richard J. Potter, Nigel Poolton, Michael J. Adams, J. Masum, Alpan Bek, Ali Serpenguzel, Atilla Aydinli, and John Stuart Roberts "Operation of a novel hot-electron vertical-cavity surface-emitting laser", Proc. SPIE 3283, Physics and Simulation of Optoelectronic Devices VI, (7 July 1998); https://doi.org/10.1117/12.316680

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