Coherence in Multielement-Phased Vertical-Cavity Surface-Emitting Laser Arrays Using Resonance Tuning

IEEE Photonics Journal

Dominic F. Siriani¹  Bradley J. Thompson¹  Stewart T. M. Fryslie¹  Matthew T. Johnson¹  Zihe Gao¹  Kent D. Choquette¹ 

[1] Department of Electrical and Computer Engineering, University of Illinois, at Urbana–Champaign, Urbana, IL, USA;

关键词: Coherent arrays;    semiconductor laser arrays;    vertical cavity surface emitting lasers;   

DOI  :  10.1109/JPHOT.2017.2750740

来源: DOAJ

【 摘 要 】

We show that optical coupling can be achieved reproducibly and with high yield by resonance tuning the elements of substrate-emitting and top-emitting vertical-cavity surface-emitting laser arrays. The resonance tuning is enabled by electrical isolation of the lasing elements in the array, which in this paper is done by post fabrication processing. Prior to electrical isolation, the laser arrays exhibit incoherent optical properties. Using resonance tuning, both in-phase and out-of-phase coherent modes are observed.

【 授权许可】

Unknown