Triangular‐shaped ring ridge lasers (ridge trilasers) have been fabricated using quantum‐well semiconductor laser material. The spectra of these ridge trilasers show single‐wavelength operation above threshold confirming traveling‐wave behavior in these lasers. Unidirectional operation is reported based on asymmetry between the clockwise and counterclockwise directions, in contrast to conventional unidirectional operation in ring lasers based on magnetic techniques.

Topics
Quantum wells, Geophysical techniques, Lasers
1.
P.
Vettiger
,
M. K.
Benedict
,
G. L.
Bona
,
P.
Buchmann
,
E. C.
Cahoon
,
K.
Dätwyler
,
H. P.
Dietrich
,
A.
Moser
,
H. K.
Seitz
,
O.
Voegeli
,
D. J.
Webb
, and
P.
Wolf
,
IEEE J. Quantum Electron.
QE-27
,
1319
(
1991
).
Google Scholar
 
2.
S.
Oku
,
M.
Okayasu
, and
M.
Ikeda
,
IEEE Photon. Tech. Lett.
3
,
588
(
1991
).
Google Scholar
Crossref
Search ADS
 
3.
T.
Krauss
,
P. J. R.
Laybourn
, and
J.
Roberts
,
Electron. Lett.
26
,
2095
(
1990
).
Google Scholar
Crossref
Search ADS
 
4.
A.
Behfar-Rad
,
J. M.
Ballantyne
, and
S. S.
Wong
,
Appl. Phys. Lett.
59
,
1395
(
1991
).
Google Scholar
Crossref
Search ADS
 
5.
A. Behfar-Rad and S. S. Wong, IEEE J. Quantum Electron. (to be published).
6.
J. T. Verdeyen, Laser Electronics (Prentice-Hall, Englewood Cliffs, New Jersey, 1981), p. 298.
7.
C. L. Tang, Quantum Electronics—Part A (Academic, New York, 1979), p. 16.
8.
A.
Behfar-Rad
,
S. S.
Wong
, and
J. M.
Ballantyne
,
International Electron Devices Meeting Technical Digest
,
934
(
1990
).
Google Scholar
 
9.
A. Behfar-Rad and R. Clauberg (unpublished).
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© 1992 American Institute of Physics.
1992
American Institute of Physics
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