期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 32, 期 20, 页码 3861-3867出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2014.2316672
关键词
Electrooptic modulators; optical polymers; optical waveguides; microwave receivers
资金
- Air Force Office of Scientific Research through Phase I STTR [FA8650-12-M-5132]
- NSF Center for Integrated Access Networks [EEC-0812072]
A silica/electro-optic (EO) polymer phase modulator is proposed for microwave radiation receiver with the use of a bowtie antenna. Waveguide design optimization is presented for a waveguide with an EO polymer core and silica/sol-gel cladding. Electrode effects on the insertion loss and poling efficiency are also analyzed and conditions for low-loss and high poling efficiency established. The bowtie antenna is simulated and shows a broadband response with a maximum at 5 GHz and a 3 dB-bandwidth of approximately 12 GHz. A fiber splicing technique is presented that reduces coupling loss between SMF-28 and the waveguide. Experimental results for a fabricated device with microwave-response between 10-14 GHz are shown with carrier to first sideband intensity difference of up to -36 dB.
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