TY - GEN
T1 - Investigation of Scattering Losses in a Buried Tunnel Junction 4m GaSb VCSEL
AU - Simaz, Andrea
AU - Debernardi, Pierluigi
AU - Beshara, Mina
AU - Belkin, Mikhail A.
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6
Y1 - 2021/6
N2 - The aim of this work is to investigate the scattering losses induced by the buried tunnel junction (BTJ) in a VCSEL operating at 4m for gas spectroscopy [1]. In this device, losses are even more important than in a standard VCSEL, due to the presence of an active region (AR) of type II which displays lower gain compared to type I. This is due to a reduced carrier wavefunction overlapped integral. Therefore a robust optical design should guarantee minimal losses. In fact, the presence of the BTJ inside the cavity enables scattering losses, which is a very well known problem in long wavelength VCSEL; in [2] the effect of the BTJ size in a VCSEL emitting at 2.3m was investigated by keeping the etching height constant and varying the step aperture and smoothness.
AB - The aim of this work is to investigate the scattering losses induced by the buried tunnel junction (BTJ) in a VCSEL operating at 4m for gas spectroscopy [1]. In this device, losses are even more important than in a standard VCSEL, due to the presence of an active region (AR) of type II which displays lower gain compared to type I. This is due to a reduced carrier wavefunction overlapped integral. Therefore a robust optical design should guarantee minimal losses. In fact, the presence of the BTJ inside the cavity enables scattering losses, which is a very well known problem in long wavelength VCSEL; in [2] the effect of the BTJ size in a VCSEL emitting at 2.3m was investigated by keeping the etching height constant and varying the step aperture and smoothness.
UR - http://www.scopus.com/inward/record.url?scp=85117568997&partnerID=8YFLogxK
U2 - 10.1109/CLEO/Europe-EQEC52157.2021.9542707
DO - 10.1109/CLEO/Europe-EQEC52157.2021.9542707
M3 - Conference contribution
AN - SCOPUS:85117568997
T3 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
BT - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Y2 - 21 June 2021 through 25 June 2021
ER -