As a new platform for remote sensing, UAV (unmanned aerial vehicle) is getting more and more attention in recent years. In UAV remote sensing system, control algorithm is a key technique. First, structure of UAV remot...
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As a new platform for remote sensing, UAV (unmanned aerial vehicle) is getting more and more attention in recent years. In UAV remote sensing system, control algorithm is a key technique. First, structure of UAV remote sensing system is given. Then, three shooting control algorithms are discussed in details. The experiments and collected images show the algorithms effective.
作者：
王菲孙伟李艾泽衣茂斌姜振华张大明State Key Laboratory on Integrated Optoelectronics
Jilin University Region Changchun 130023 Department of Chemistry
Jilin University Changchun 130023 State Key Laboratory on Integrated Optoelectronics
Jilin University Region Changchun 130023n wavelength division multiplexing (WDM) systems an arrayed waveguide grating (AWG) multiplexer is a key component. A polymeric AWG multiplexer has recently attracted much attention due to its low cost processing and a potential of integration with other devices. Fluorinated poly (ether ether ketone) (FPEEK) is excellent material for fabrication of optical waveguides due to its low absorption loss at 1.55-μm wavelength and high thermal stability. A 32-channel AWG multiplexer has been designed based on the grating diffraction theory and fabricated using newly synthesized FPEEK. During the fabrication process of the Polymer/Si AWG device spin coating vaporizing photolithographic patterning and reactive ion etching (RIE) are used. The AWG multiplexer measurement system is based on a tunable semiconductor laser infrared camera and a Peltier-type heater. The device exhibits a wavelength channel spacing of 0.8 nm and a center wavelength of 1548 nm in the room temperature.
In wavelength division multiplexing (WDM) systems, arrayed waveguide grating (AWG) multiplexer is a key component. Polymeric AWG multiplexer has recently attracted much attention due to its low cost processing and a p...
详细信息
In wavelength division multiplexing (WDM) systems, arrayed waveguide grating (AWG) multiplexer is a key component. Polymeric AWG multiplexer has recently attracted much attention due to its low cost processing and a potential of integration with other devices. Fluorinated polyether ether ketone (FPEEK) is excellent material for fabrication of optical waveguides due to its low absorption loss at 1.55-μm wavelength and high thermal stability. A 32-channel AWG multiplexer has been designed based on the grating diffraction theory and fabricated using newly synthesized FPEEK. During the fabrication process of the polymer/Si AWG device, spin coating, vaporizing, photolithographic patterning and reactive ion etching (RIE) are used. The AWG multiplexer measurement system is based on a tunable semiconductor laser, an infrared camera and a Peltier-type heater. The device exhibits a wavelength channel spacing of 0.8 nm and a center wavelength of 1548 nm at room temperature.
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