期刊
IEEE JOURNAL OF QUANTUM ELECTRONICS
卷 53, 期 4, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JQE.2017.2718222
关键词
Electro-optical devices; photonic crystals; waveguide modulators
资金
- National Science Foundation [ECCS-1201853, IIP-1500222]
- Materials Processing and Microfabrication Facility through the MRSEC Program of the National Science Foundation at the Materials Research Center of Northwestern University [DMR-1121262]
- Center for Nanoscale Materials at Argonne National Laboratory through the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Northwestern University Physics Instrumentation and Fabrication Facilities through the National Science Foundation [DMR-0960120]
Future telecommunication and data center networks as well as quantum optical communication systems will require optical modulators with wide bandwidths, large extinction, low operating voltage, and small size. We report the first quantitative demonstration of slow light enhancement of the electro-optic (EO) coefficient in a.(2) ferroelectric waveguide at microwave modulation frequencies. This is demonstrated in a compact (1 mm) photonic crystal (PC) device with a voltage-length product (V pi . L) of 0.66 V-cm at 10 GHz and measured EO modulation out to 40 GHz. A local enhancement factor of 12 and effective EO coefficient of 900 pm/V is measured in the PC region at a wavelength of 1530 nm. By further optimizing the PC structure, devices with EO 3-dB bandwidths greater than 40 GHz and voltage-length product of 0.16 V-cm are predicted with 100-mu m interaction length.
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