Arrayed waveguide grating and multiplexer/demultiplexer...

Arrayed waveguide grating type optical...

Arrayed waveguide grating with reduced channel passband...

Arrayed waveguide gratings

Article coated with cured material and methods of making

Article comprising a dispersion compensating grating with...

Article comprising a multimode optical fiber coupler

Article comprising a rare earth or transition metal doped...

Article comprising an authenticated item of sheet material...

Article exhibiting dry and wet retroreflectivity

Article with holographic and retroreflective features

Articulated eyeglass frame

Articulated mechanical framework, especially for an...

Articulated spectacle frames with wire assembled components

Artificial horizon spectacles

Artificial light source device

Artificial light source device

Aspheric corneal contact lens series

Aspheric lens for polygon mirror tilt error correction and...

Aspheric lens series