Abstract
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.
Original language | English (US) |
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Article number | 6787019 |
Pages (from-to) | 3861-3867 |
Number of pages | 7 |
Journal | Journal of Lightwave Technology |
Volume | 32 |
Issue number | 20 |
DOIs | |
State | Published - Oct 15 2014 |
Keywords
- Electrooptic modulators
- microwave receivers
- optical polymers
- optical waveguides
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics