Distributed optical structures designed by computed...

Distributed optical structures exhibiting reduced optical loss

Distributed optical structures in a planar waveguide...

Distributed optical structures with improved diffraction...

Double diffraction grating planar lightwave circuit

Double diffraction grating with flat passband output

Double lens array for optical cross-connects

Drop-before-add optical switching and routing system...

Dual core corrugated Bragg grating

Dual fiber collimator

Dual fiber optical collimator

Dual illumination anisotropic light emitting device

Dual-reflector light coupler

Dual-side waveguide-based wavelength demultiplexer

Dual-side waveguide-based wavelength demultiplexer

Duplex arrayed waveguide grating

Duplicated-port waveguide grating router having...

Dynamic fiber bragg grating

Dynamic gain and channel equalizers

Dynamic gain equalizing filter