Optically addressed variable-efficiency waveguide grating for switching arrays.
An optically addressed waveguide grating switch is described and demonstrated. Its structure includes a planar slab waveguide with a surface relief grating and an active-material cladding layer. Photoinduced birefringence due to a polarized argon laser beam causes modulation of the refractive index of the cladding in the grating region and modulation of diffraction efficiency of the waveguide grating.
Strzelecki
E M
EM
Physical Optics Corporation, 20600 Gramercy Place, Torrance, California 90501, USA.
Chen
J
J
Lin
F
F