Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | International Conference on Transparent Optical Networks |
| Publisher | IEEE Computer Society |
| Volume | 2015-August |
| ISBN (Print) | 9781467378802 |
| DOIs | |
| Publication status | Published - 2015 Aug 12 |
| Event | 17th International Conference on Transparent Optical Networks, ICTON 2015 - Budapest, Hungary Duration: 2015 Jul 5 → 2015 Jul 9 |
Other
| Other | 17th International Conference on Transparent Optical Networks, ICTON 2015 |
|---|---|
| Country | Hungary |
| City | Budapest |
| Period | 15/7/5 → 15/7/9 |
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Keywords
- Brewster angle
- Laser diode
- Microcavity
- Polarization switching
- Transverse electric emission
- Transverse magnetic emission
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
Transverse magnetic emissions of GaAs unstrained quantum-well microcavity lasers. / Fukushima, Takehiro; Shinohara, Susumu; Sunada, Satoshi; Harayama, Takahisa; Sakaguchi, Koichiro; Tokuda, Yasunori.
International Conference on Transparent Optical Networks. Vol. 2015-August IEEE Computer Society, 2015. 7193549.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
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
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
SN - 9781467378802
VL - 2015-August
BT - International Conference on Transparent Optical Networks
PB - IEEE Computer Society
ER -