Fabrication of a two‐dimensional phased array of vertical‐cavity surface‐emitting lasers
作者:
Hoi‐Jun Yoo,
A. Scherer,
J. P. Harbison,
L. T. Florez,
E. G. Paek,
B. P. Van der Gaag,
J. R. Hayes,
A. Von Lehmen,
E. Kapon,
Young‐Se Kwon,
期刊:
Applied Physics Letters
(AIP Available online 1990)
卷期:
Volume 56,
issue 13
页码: 1198-1200
ISSN:0003-6951
年代: 1990
DOI:10.1063/1.102558
出版商: AIP
数据来源: AIP
摘要:
We report the successful fabrication of a two‐dimensional phase‐locked array of vertical‐cavity surface‐emitting lasers. The array was comprised of more than 160 vertical‐cavity surface‐emitting lasers of 1.3 &mgr;m diameter with a separation of less than 0.1 &mgr;m between each lasing element. The array had a 25 &mgr;m diameter and each of the elemental lasers was located on a two‐dimensional rectangular lattice. The threshold current of the two‐dimensional array 45 mA yields a threshold current of 280 &mgr;A for an elemental laser. The far‐field beam angle of the array was as narrow as 7°, and the spectral purity was found to be good enough to allow for a clear holographic image reconstruction of a holographic memory.
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