Abstract
We investigated the lasing modes of quasi-stadium laser diodes that have confocal cavity geometries, with stripe electrode contacts formed either along the cavity axis or a diamond-shaped trajectory. It was clearly demonstrated thatbyusing narrow electrode contact patternsof 2 μm width, the lowest-order axial and ring modes were excited selectively. On the other hand, the second-lowest-order axial and ring modes were excited by using broad electrode patterns of 14 μm width. Experimentally obtained far-field patterns for lasers with broad and narrow electrode contact patterns agree very well with the simulation results obtained using an extended Fox-Li mode calculation method.
| Original language | English |
|---|---|
| Pages (from-to) | 2515-2520 |
| Number of pages | 6 |
| Journal | Applied Optics |
| Volume | 51 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2012 May 10 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Lowest-order axial and ring mode lasing in confocal quasi-stadium laser diodes. / Fukushima, Takehiro; Sunada, Satoshi; Harayama, Takahisa; Sakaguchi, Koichiro; Tokuda, Yasunori.
In: Applied Optics, Vol. 51, No. 14, 10.05.2012, p. 2515-2520.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Lowest-order axial and ring mode lasing in confocal quasi-stadium laser diodes
AU - Fukushima, Takehiro
AU - Sunada, Satoshi
AU - Harayama, Takahisa
AU - Sakaguchi, Koichiro
AU - Tokuda, Yasunori
PY - 2012/5/10
Y1 - 2012/5/10
N2 - We investigated the lasing modes of quasi-stadium laser diodes that have confocal cavity geometries, with stripe electrode contacts formed either along the cavity axis or a diamond-shaped trajectory. It was clearly demonstrated thatbyusing narrow electrode contact patternsof 2 μm width, the lowest-order axial and ring modes were excited selectively. On the other hand, the second-lowest-order axial and ring modes were excited by using broad electrode patterns of 14 μm width. Experimentally obtained far-field patterns for lasers with broad and narrow electrode contact patterns agree very well with the simulation results obtained using an extended Fox-Li mode calculation method.
AB - We investigated the lasing modes of quasi-stadium laser diodes that have confocal cavity geometries, with stripe electrode contacts formed either along the cavity axis or a diamond-shaped trajectory. It was clearly demonstrated thatbyusing narrow electrode contact patternsof 2 μm width, the lowest-order axial and ring modes were excited selectively. On the other hand, the second-lowest-order axial and ring modes were excited by using broad electrode patterns of 14 μm width. Experimentally obtained far-field patterns for lasers with broad and narrow electrode contact patterns agree very well with the simulation results obtained using an extended Fox-Li mode calculation method.
UR - http://www.scopus.com/inward/record.url?scp=84861376787&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861376787&partnerID=8YFLogxK
U2 - 10.1364/AO.51.002515
DO - 10.1364/AO.51.002515
M3 - Article
C2 - 22614468
AN - SCOPUS:84861376787
VL - 51
SP - 2515
EP - 2520
JO - Applied Optics
JF - Applied Optics
SN - 1559-128X
IS - 14
ER -