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Conferences > CLEO > 1999 > CWF > CWF52
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1999),
  • paper CWF52

Electrically controlled optical beam-steering/waveguiding in an active GaAs siab

Xuesong Dong, Patrick LiKam Wa, J.P. Loehr, and R. Kaspi

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Abstract

The effect of carrier induced refractive index change in semiconductor lasers has been studied extensively in the past decade.1,2 Owing to the plasma effect, a region that is highly populated with charged carriers experiences a lowering of its refractive index. It is known that when the carrier density in the active region is increased by 1018 cm−3, the refractive index can be depressed by an order of 10−3 In this report we describe the use of this mechanism to achieve horizontal confinement in a planar GaAs/AlGaAs slab waveguide.

© 1999 Optical Society of America

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