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Proceedings Paper

Tunable picosecond pulses from gain-switched grating-coupled surface-emitting laser
Author(s): Oleg V. Smolski; Jun Jiang; Chandrasekhar Roychoudhuri; G. B. Venus; Jeff Bullington; Efim L. Portnoi
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Paper Abstract

We have demonstrated a 60 nm-tunable, 160 psec-width, optical pulses from a 980 nm Grating Coupled Surface Emitting Laser (GCSEL) in an external cavity under nanosecond pump pulses. GCSEL is in-plane laser monolithically integrated with grating outcoupler. The grating was detuned from second order Bragg condition and it served as an efficient interface between planar waveguide and free space. Wavelength tuning was simply achieved by tilting an external flat mirror provided wavelength selective feedback to the GCSEL chip. Gain switched pulses with wavelength linewidth less than 0.1 nm and peak power of 200 mW have been obtained. In our experiments we measured a shortest optical pulses by reducing a distance between external mirror and laser diode chip. This corresponded with decreasing the effective laser cavity length and the cavity round-trip time as well.

Paper Details

Date Published: 22 May 2002
PDF: 4 pages
Proc. SPIE 4651, Novel In-Plane Semiconductor Lasers, (22 May 2002); doi: 10.1117/12.467966
Show Author Affiliations
Oleg V. Smolski, Infinite Photonics, Inc. (United States)
Jun Jiang, Ciena Corp. (United States)
Chandrasekhar Roychoudhuri, Univ. of Connecticut (United States)
G. B. Venus, A.F. Ioffe Physico-Technical Institute (Russia)
Jeff Bullington, Infinite Photonics, Inc. (United States)
Efim L. Portnoi, IOFFE Institute (Russia)

Published in SPIE Proceedings Vol. 4651:
Novel In-Plane Semiconductor Lasers
Jerry R. Meyer; Claire F. Gmachl, Editor(s)

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