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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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