Electrically steerable lasers using wide aperture VCSELs

M.I. Cohen1, C. Jagadish1, A.A. Alerman2, K.D. Choquett2
1Department of electronic material Engineering, research school of physical science and engineering, Australian National University, Australia
2Sandia National Laboratories, NM, USA

Tóm tắt

A steerable vertical cavity surface emitting laser has been fabricated. It was found that the far field emission can be made to exhibit two distinct steerable beams. The laser beams may be steered from 30/spl deg/ away from the normal right up to normal emission by varying the driving current. The steering effect is a thermal effect as confirmed by transient waveform analysis. A 2-channel switch was built with switching time between channels of 10 /spl mu/s and cross talk of better than 18dB.

Từ khóa

#Apertures #Vertical cavity surface emitting lasers #Surface emitting lasers #Laser beams #Optical beams #Optical interconnections #Laser modes #Laser theory #Space technology #Detectors

Tài liệu tham khảo

10.1109/68.559403 10.1143/JJAP.38.1966 10.1109/50.737427 nakwaski, 1996, International Journal of Optoelectronics, 10, 119 10.1109/3.720228 10.1070/qe1999v029n09ABEH001566