Mode locking of semiconductor laser with curved waveguide and passive mode expander

Williamson, C.A., Adams, M.J., Ellis, A.D. and Borghesani, A. (2003). Mode locking of semiconductor laser with curved waveguide and passive mode expander. Applied Physics Letters, 82 (3), pp. 322-324.

Abstract

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 8×10−6 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.

Publication DOI: https://doi.org/10.1063/1.1539277
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Uncontrolled Keywords: mode locking,semiconductor lasers,laser resonators,linewidths,reflectivity
Full Text Link: http://scitatio ... .1063/1.1539277
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Published Date: 2003-01-20
Authors: Williamson, C.A.
Adams, M.J.
Ellis, A.D. ( 0000-0002-0417-0547)
Borghesani, A.

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