Active mode locking is reported for a 1.55 μm semiconductor laser with a curved waveguide and passive mode expander, placed in a wavelength tunable external cavity. One facet with a very low reflectivity of is achieved through a curved active region that tapers into an underlying passive waveguide, thus expanding the mode to give reduced divergence. 10 GHz pulses of 3.1 ps duration have been generated, with a linewidth of 0.81 nm.
REFERENCES
1.
J. E.
Bowers
, P. A.
Morton
, A.
Mar
, and S. W.
Corzine
, IEEE J. Quantum Electron.
25
, 1426
(1989
).2.
J.
Yu
, M.
Schell
, M.
Schulze
, and D.
Bimberg
, Appl. Phys. Lett.
65
, 2395
(1994
).3.
P. Vasil’ev, Ultrafast Laser Diodes (Artech House, Boston, 1995), p. 111.
4.
M.
Schell
, A. G.
Weber
, E.
Schöll
, and D.
Bimberg
, IEEE J. Quantum Electron.
27
, 1661
(1991
).5.
J.
Chen
, W.
Sibbett
, and J. I.
Vukusic
, Electron. Lett.
18
, 426
(1982
).6.
T.
Yilmaz
, C. M.
DePriest
, and P. J.
Delfyett
, Jr., Electron. Lett.
37
, 1338
(2001
).7.
R.
Helkey
, W. X.
Zou
, A.
Mar
, D. B.
Young
, and J.
Browers
, IEEE Trans. Electron Devices
40
, 2107
(1993
).8.
I. F.
Lealman
, A. E.
Kelly
, L. J.
Rivers
, S. D.
Perrin
, and R.
Moore
, Electron. Lett.
34
, 2247
(1998
).9.
P.
Doussiere
, P.
Garabedian
, C.
Graver
, E.
Derouin
, E.
Gaumont-Goarin
, G.
Michaud
, and R.
Meilleur
, Appl. Phys. Lett.
64
, 539
(1994
).10.
I. F.
Lealman
, L. J.
Rivers
, M. J.
Harlow
, and S. D.
Perrin
, Electron. Lett.
30
, 1685
(1994
).11.
I. F.
Lealman
, L. J.
Rivers
, M. J.
Harlow
, S. D.
Perrin
, and M. J.
Robertson
, Electron. Lett.
30
, 857
(1994
).12.
13.
M.
Schell
, J.
Yu
, M.
Tsuchiya
, and T.
Kamiya
, Appl. Phys. Lett.
67
, 1797
(1995
).
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