3 Fibre I and Q coupler
3-D electro optical switch
3-port optical add-drop multiplexer (OADM)
3.times.3 waveguide coupler for bidirectional dual wavelength tr
3D array optical displacement sensor and method using same
3D image feedback optical beam alignment
3D integrated guiding structure
3D photonic bandgap device in SOI
3D photonic bandgap device in SOI
3D photonic bandgap device in SOI method