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Planar hybrid polymer-silica microlenses with tunable beamwidth and focal length
By: Glebov, A.L.; Yokouchi, K.; Lee, M.; Aoki, S.; Huang, L.;
2004 / IEEE
This item was taken from the IEEE Periodical ' Planar hybrid polymer-silica microlenses with tunable beamwidth and focal length ' Thermally tunable planar microlenses have been fabricated with a hybrid process utilizing silica-on-silicon and polymer planar lightwave circuit technologies. The silica microlens has a double concave gap filled with an optical polymer. The lens collimates the light beam with a beamwidth of less than 450 /spl mu/m at distances up to 100 mm. The experiments presented demonstrate that by varying the lens temperature in a range of 60/spl deg/C the beamwidth can be tuned by /spl plusmn/40% at different distances from the lens. The beam-propagation-method simulations show that adjusting the lens curvature can control the beamwidth tunability range and thermal sensitivity. That allows optimization of the lens designs for different applications.
Planar Hybrid Polymer-silica Microlenses
Thermally Tunable Planar Microlenses Fabrication
Polymer Planar Lightwave Circuit Technology
Double Concave Gap
Light Beam Collimation
Lens Design Optimization
Tunable Circuits And Devices
Photonics And Electrooptics
Engineered Materials, Dielectrics And Plasmas