Department of Optical Engineering Utsunomiya University

In order to support the research activities, our group has been fully equipped with state of the art of the optical waveguide simulation software, polymer thin film fabrication, material characterization equipment, and passive and active optical waveguide evaluation equipment.

Clean Room

We use cleanroom for polymer thin film fabrication. Our cleanroom is equipped with a controllable air-flow draft bench, programmable spin-coater, programmable regular oven and vacuum oven, controllable UV light source with uniform output, high-accuracy balance with ion compensation, high resolution and magnification microscope, and viscometer with high and low viscosity sensors.We also operate Anelva O₂ Reactive Ion Etching (RIE) machine.

 

spin coater	UV lightsource
O2 Reactive Ion Etching machine

Material Characterization Equipment

Our material characterization laboratory has been equipped with the fully automated systems such as high precision and resolution Metricon 2010M prism coupling, Veeco Dektak 150 surface profiler, Shimadzu UV-Vis-NIR scanning spectrophotometer and Avantes spectrophotometer, corona and contact poling systems, and Second Harmonic Generation (SHG) evaluations by means of Maker Fringe technique using wavelength controllable Optical Parametric Oscillator (OPO) laser system as a light source.

 

Prism coupler	Surface profile measurement apparatus
Shimadzu UV-Vis-NIR spectrophotometer	SHG setup apparatus

Optical Waveguide Evaluation Equipment

We evaluate our passive and active optical waveguide device by means of butt-coupling technique. We could also extend our setup to enable evaluate the Near-Field Pattern (NFP) and Far-Field Pattern (FFP) of the output waveguide beam profiles. We are equipped with vibration-free optical table, polarization controller fiber holder and Optical Spectrum Analyzer. We also develop the infra-red (IR) imaging system for optical waveguide inspection in the IR wavelength area. We also use the Tektronix function generator and 2 channel oscilloscope for active optical waveguide measurement. Recently, we develop new setup of Light-Induced Self-Written (LISW) Waveguide for ease and low-loss optical interconnection

 

Evaluation equipment of waveguide	Optical Spectrum Analyzer.JPG