Title :
1.55 μm polarisation insensitive InGaAsP strained MQW optical amplifier integrated with short spot-size converters
Author :
Sigogne, D. ; Ougazzaden, A. ; Meichenin, D. ; Mersali, B. ; Carenco, A. ; Simon, J.C. ; Valiente, I. ; Vassallo, C. ; Billes, L.
Author_Institution :
France Telecom, CNET, Bagneux, France
fDate :
7/18/1996 12:00:00 AM
Abstract :
The use of a 16 period strained multiquantum-well (MQW) structure associated with both tapers and windows yields high performance polarisation insensitive optical amplification. 23 dB fibre to fibre gain with small numerical aperture lensed fibres was achieved at 1.55 μm for 150 mA injected current with less than 0.5 dB ripple, and polarisation sensitivity lower than 1 dB. Output beams show reproducible reduced circular far-field divergence. These characteristics are of great interest for practical use of this component in a large number of applications
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; integrated optics; optical communication equipment; optical fibre communication; optical fibre polarisation; quantum well lasers; 1.55 micrometre; 150 mA; 23 dB; InGaAsP; circular far-field divergence; fibre to fibre gain; numerical aperture; polarisation insensitive optical amplification; short spot-size converters; strained MQW optical amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960904
