TY - GEN
T1 - Transverse magnetic emissions of GaAs unstrained quantum-well microcavity lasers
AU - Fukushima, Takehiro
AU - Shinohara, Susumu
AU - Sunada, Satoshi
AU - Harayama, Takahisa
AU - Sakaguchi, Koichiro
AU - Tokuda, Yasunori
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/12
Y1 - 2015/8/12
N2 - We investigated the polarization characteristics of emissions from two-dimensional microcavity laser diodes. For an unstrained single-quantum-well active layer structure, an argument based on the interband optical transition usually leads to the lasing of transverse electric (TE) rather than transverse magnetic (TM) modes. Indeed, we observed TE-polarized emissions for the excitation of modes quantized along a one-dimensional (Fabry-Perot) orbit. However, when selectively pumping modes quantized along a diamond-shaped ray orbit, we observed TM-polarized emissions. These unusual TM-polarized emissions can be explained by the fact that the incident angles of the diamond-shaped orbit are very close to the Brewster angle, making corresponding TE modes too leaky to be excited. This mode-dependent polarization leads us to propose a microcavity laser diode with the function of polarization switching.
AB - We investigated the polarization characteristics of emissions from two-dimensional microcavity laser diodes. For an unstrained single-quantum-well active layer structure, an argument based on the interband optical transition usually leads to the lasing of transverse electric (TE) rather than transverse magnetic (TM) modes. Indeed, we observed TE-polarized emissions for the excitation of modes quantized along a one-dimensional (Fabry-Perot) orbit. However, when selectively pumping modes quantized along a diamond-shaped ray orbit, we observed TM-polarized emissions. These unusual TM-polarized emissions can be explained by the fact that the incident angles of the diamond-shaped orbit are very close to the Brewster angle, making corresponding TE modes too leaky to be excited. This mode-dependent polarization leads us to propose a microcavity laser diode with the function of polarization switching.
KW - Brewster angle
KW - Laser diode
KW - Microcavity
KW - Polarization switching
KW - Transverse electric emission
KW - Transverse magnetic emission
UR - http://www.scopus.com/inward/record.url?scp=84940923712&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940923712&partnerID=8YFLogxK
U2 - 10.1109/ICTON.2015.7193549
DO - 10.1109/ICTON.2015.7193549
M3 - Conference contribution
AN - SCOPUS:84940923712
T3 - International Conference on Transparent Optical Networks
BT - ICTON 2015 - 17th International Conference on Transparent Optical Networks
A2 - Jaworski, Marek
A2 - Marciniak, Marian
PB - IEEE Computer Society
T2 - 17th International Conference on Transparent Optical Networks, ICTON 2015
Y2 - 5 July 2015 through 9 July 2015
ER -