We report on a high-power diode–end–pumped polycrystalline Yb:Y2O3 ceramic laser. Under the pump power of 27W, continuous-wave output power of 9.2W at 1078nm has been obtained by using an output coupler of R=96%. The laser had a threshold of 3.1W and a slope efficiency of 41%. Comparative studies on the laser performance between the Yb:Y2O3 ceramic and the Yb:yttrium aluminum garnet (YAG) single crystal show that at the same doping concentration of 8at.%, higher laser efficiency can be obtained in the Yb:Y2O3 ceramic laser than in the Yb:YAG single crystal laser.

1.
A.
Ikesue
,
T.
Kinoshita
,
K.
Kamata
, and
K.
Yoshida
,
J. Am. Ceram. Soc.
78
,
1033
(
1995
).
2.
J.
Lu
,
M.
Prabhu
,
J.
Xu
,
K.
Ueda
,
H.
Yagi
,
T.
Yanagitani
, and
A. A.
Kaminskii
,
Appl. Phys. Lett.
77
,
3707
(
2000
).
3.
J.
Lu
,
T.
Murai
,
K.
Takaichi
,
T.
Uematsu
,
K.
Ueda
,
H.
Yagi
,
T.
Yanagitani
, and
A. A.
Kaminskii
,
Jpn. J. Appl. Phys., Part 2
40
,
L1277
(
2001
).
4.
J.
Kong
,
J.
Lu
,
K.
Takaichi
,
T.
Uematsu
,
K.
Ueda
,
D. Y.
Tang
,
D. Y.
Shen
,
H.
Yagi
,
T.
Yanagitani
, and
A. A.
Kaminskii
,
Appl. Phys. Lett.
82
,
2556
(
2003
).
5.
J.
Kong
,
D. Y.
Tang
,
J.
Lu
,
K.
Ueda
,
H.
Yagi
, and
T.
Yanagitani
,
Opt. Lett.
29
,
1212
(
2004
).
6.
K.
Takaichi
,
H.
Yagi
,
J.
Lu
,
J. F.
Bisson
,
A.
Shirakawa
,
K.
Ueda
,
T.
Yanagitani
, and
A. A.
Kaminskii
,
Appl. Phys. Lett.
84
,
317
(
2004
).
7.
A.
Shirakawa
,
K.
Takaichi
,
H.
Yagi
,
J.-F.
Bisson
,
J.
Lu
,
M.
Musha
,
K.
Ueda
,
T.
Yanagitani
,
T. S.
Petrov
, and
A. A.
Kaminskii
,
Opt. Express
11
,
2911
(
2003
).
8.
J.
Kong
,
D. Y.
Tang
,
J.
Lu
,
K.
Ueda
,
H.
Yagi
, and
T.
Yanagitani
,
Opt. Commun.
237
,
165
(
2004
).
9.
V. V.
Ter-Mikirtychev
and
V. A.
Fromzel
,
Appl. Opt.
39
,
964
(
2000
).
10.
J.
Kong
,
D. Y.
Tang
,
J.
Lu
, and
K.
Ueda
,
Appl. Phys. B: Lasers Opt.
79
,
449
(
2004
).
You do not currently have access to this content.