Jiabi Xue, Shouqiang Lai, Xin Liu, Dan Zhang. Realizing Optical Absorption Properties of Polymer Waveguides using LED Pump Source[J]. Chinese Journal of Lasers, 2021, 48(20): 2006003
- Chinese Journal of Lasers
- Vol. 48, Issue 20, 2006003 (2021)
Fig. 1. Preparation process of polymer SU-8 waveguide
Fig. 2. Preparation process of PMMA waveguide
Fig. 3. Scanning electron micrographs of waveguide section. (a) Sectional view of polymer SU-8 rectangular waveguide; (b) sectional view of polymer SU-8 Mach-Zehnder waveguide; (c) plan view of polymer SU-8 Mach-Zehnder waveguide; (d) sectional view of PMMA rectangular waveguide
Fig. 4. Test system
Fig. 5. Output optical intensity variation of polymer SU-8 waveguide. (a) Under LED with different wavelength and laser pumping; (b) under 405-nm LED pumping with different power
Fig. 6. Output optical intensity variation of the polymer SU-8 waveguide under LED pumping with different wavelength. (a) 980-nm laser as signal source; (b) 635-nm laser as signal source
Fig. 7. Comparison of optical field attenuation of different signal sources under LED pumping with different wavelength
Fig. 8. Output optical intensity versus waveguide with different width
Fig. 9. Comparison of optical intensity attenuation of waveguides with different width
Fig. 10. Output optical intensity variation of the Mach-Zehnder structure waveguide under LED pumping with different wavelength. (a) 1064-nm laser as signal source; (b) 635-nm laser as signal source
Fig. 11. Output optical intensity variation of PMMA waveguide under LED pumping with different wavelength. (a) 1064-nm laser as signal source; (b) 635-nm laser as signal source
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