Optical losses in c-plane (0001) GaN ridge waveguides, containing Mg-doped layers, were measured at 1064 nm, using the Fabry-Perot method. The losses increase linearly with the modal content of the p-layer, indicating that the absorption in these waveguides is dominated by p-layer absorption. The p-layer absorption is strongly anisotropic with E⊥c losses 4 times higher than E∥c. The absorption is temperature independent between 10 °C and 60 °C, supporting the possibility that it is related to Mg-bound holes.

1.
R.
Hui
,
Y.
Wan
,
J.
Li
,
S.
Jin
,
J.
Lin
, and
H.
Jiang
,
IEEE J. Quantum Electron.
41
,
100
(
2005
).
2.
N.
Iizuka
,
K.
Kaneko
, and
N.
Suzuki
,
J. Appl. Phys.
99
,
093107
(
2006
).
3.
A.
Stolz
,
L.
Considine
,
E.
Dogheche
,
D.
Decoster
, and
D.
Pavlidis
,
IEICE Trans. Electron.
95
,
1363
(
2012
).
4.
Y.
Fang
,
Z.
Xiao
,
X.
Wu
,
F.
Zhou
,
J.
Yang
,
Y.
Yang
, and
Y.
Song
,
Appl. Phys. Lett.
106
,
251903
(
2015
).
5.
N.
Vico Triviño
,
U.
Dharanipathy
,
J.-F.
Carlin
,
Z.
Diao
,
R.
Houdre
, and
N.
Grandjean
,
Appl. Phys. Lett.
102
,
081120
(
2013
).
6.
A. W.
Bruch
,
C.
Xiong
,
B.
Leung
,
M.
Poot
,
J.
Han
, and
H. X.
Tang
,
Appl. Phys. Lett.
107
,
141113
(
2015
).
7.
O.
Westreich
,
M.
Katz
,
Y.
Paltiel
,
O.
Ternyak
, and
N.
Sicron
,
Phys. Status Solidi A
212
,
1043
(
2015
).
8.
R. J.
Deri
and
E.
Kapon
,
IEEE J. Quantum Electron.
27
,
626
(
1991
).
9.
E.
Kioupakis
,
P.
Rinke
,
A.
Schleife
,
F.
Bechstedt
, and
C. G.
Van de Walle
,
Phys. Rev. B
81
,
241201
(
2010
).
10.
M.
Kuramoto
,
C.
Sasaoka
,
N.
Futagawa
,
M.
Nido
, and
A.
Yamaguchi
,
Phys. Status Solidi A
192
,
329
(
2002
).
11.
M.
Martens
,
C.
Kuhn
,
T.
Simoneit
,
S.
Hagedorn
,
A.
Knauer
,
T.
Wernicke
,
M.
Weyers
, and
M.
Kneissl
,
Appl. Phys. Lett.
110
,
081103
(
2017
).
12.
D. S.
Sizov
,
R.
Bhat
,
A.
Heberle
,
K.
Song
, and
C.-E.
Zah
,
Appl. Phys. Express
3
,
122104
(
2010
).
13.
S.
Uchida
,
M.
Takeya
,
S.
Ikeda
,
T.
Mizuno
,
T.
Fujimoto
,
O.
Matsumoto
,
S.
Goto
,
T.
Tojyo
, and
M.
Ikeda
,
IEEE J. Sel. Top. Quantum Electron.
9
,
1252
(
2003
).
14.
O.
Ambacher
,
W.
Rieger
,
P.
Ansmann
,
H.
Angerer
,
T.
Moustakas
, and
M.
Stutzmann
,
Solid State Commun.
97
,
365
(
1996
).
15.
M. J.
Bergmann
,
Ü.
Özgür
,
H. C.
Casey
,
H. O.
Everitt
, and
J. F.
Muth
,
Appl. Phys. Lett.
75
,
67
(
1999
).
16.
R.
Regener
and
W.
Sohler
,
Appl. Phys. B
36
,
143
(
1985
).
17.
W.
Götz
,
N.
Johnson
,
J.
Walker
,
D.
Bour
, and
R.
Street
,
Appl. Phys. Lett.
68
,
667
(
1996
).
18.
P.
Ščajev
,
K.
Jarašiūnas
,
Ü.
Özgür
,
H.
Morkoç
,
J.
Leach
, and
T.
Paskova
,
Appl. Phys. Lett.
100
,
022112
(
2012
).
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