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| 1 | Compact, submilliwatt, 2 × 2 silicon thermo-optic switch based on photonic crystal nanobeam cavities显示文摘We propose and experimentally demonstrate a 2×2 thermo-optic(TO) crossbar switch implemented by dual photonic crystal nanobeam(PCN)cavities within a silicon-on-insulator(SOI)platform.By thermally tuning the refractive index of silicon,the resonance wavelength of the PCN cavities can be red-shifted.With the help of the ultrasmall mode volumes of the PCN cavities,only~0.16 mW power is needed to change the switching state.With a spectral passband of 0.09 nm at the 1583.75 nm operation wavelength,the insertion loss(IL)and crosstalk(CT)performances were measured as IL(bar)=-0.2 dB,CT(bar)=-15 dB,IL(cross)=-1.5 dB,and CT(cross)=-15 dB.Furthermore,the thermal tuning efficiency of the fabricated device is as high as1.23 nm/mW. | HUANYING ZHOU CIYUAN QIU XINHONG JIANG QINGMING ZHU YU HE YONG ZHANG YIKAI SU RICHARD SOREF | 2017 | Photonics Research2017，5，2： | 8 |
| 2 | Mid-infrared 2×2 electro-optical switching by silicon and germanium three-waveguide and four-waveguide directional couplers using free-carrier injection显示文摘New designs are proposed for 2×2 electro-optical switching in the 1.3–12μm wavelength range.Directional couplers are analyzed using a two-dimensional effective-index approximation.It is shown that three or four side-coupled Si or Ge channel waveguides can provide complete crossbar broad-spectrum switching when the central waveguides are injected with electrons and holes to modify the waveguides’core index by an amountΔn+iΔk.The four-waveguide device is found to have a required active length L that is 50%shorter than L for the three-waveguide switch.A rule ofΔβL>28 for 3w andΔβL>14 for 4w is deduced to promise insertion loss<1.5 dB and crosstalk<−15 dB at the bar state.At an injection ofΔNe=ΔNh=5×10^(17)cm^(−3),the predicted L decreased from∼2 to∼0.5 mm asλincreased from 1.32 to 12μm.Because of Ge’s largeΔk,the Ge bar loss is high in 4w but is acceptable in 3w. | Richard Soref | 2014 | Photonics Research2014，2，5： | 2 |
| 3 | Design of a Si-based lattice-matched room-temperature GeSn/GeSiSn multi-quantum- well mid-infrared laser diode 显示文摘 | G Sun R A Soref H H Cheng | 2010 | Opt Express2010，18，19： | 1 |
| 4 | Silicon photonics:a review of recent literature显示文摘 | Soref R | | 0，，01： | 1 |
| 5 | Silicon-based optoelectronics显示文摘 | SOREF R A | 1993 | IEEE1993，81，12： | 1 |
| 6 | Optical add-drop filters based on photonic crystal ring resonators显示文摘 | QIANG Ze xuan ZHOU Wei-dong SOREF R A | 2007 | Optics Express2007，15，4： | 1 |
| 7 | Characterization ofa novel airway epithelial cell-specific short chain alcoholdehydrogenase / reductase gene whose expression is up-regulated by retinoids and is involved in the metabolism ofretinol显示文摘 | Soref C M Di Y P Hayden L | 2001 | J Biol Chem2001，276，24： | 1 |
| 8 | Electrically controlled birefringence of thin nematic films 显示文摘 | Soref R A Rafuse M J | 1972 | J Appl Phys1972，43，5： | 1 |
| 9 | Optical add-drop filters based on photonic crystal ring resonators显示文摘 | Qiang Zexuan Zhou Weidong Soref Richard A | 2007 | Opt Express2007，15，4： | 1 |
| 10 | Large single-mode rib waveguides in GeSi-Si and Si-on-SiO2 显示文摘 | Soref R A Schmidtchen J Petermann K | 1991 | IEEE Journal of Quantum Electronics1991，27，8： | 1 |
| 11 | The past present and future of silicon photonics显示文摘 | Soref R | 2006 | IEEE J Selected Topics in Quantum Electron2006，12，6： | 1 |
| 12 | Large single mode rib waveguides in GeSi-Si and Si-on-SiO2显示文摘 | Soref R A Schmidtchen J Petermann K | 1991 | IEEE Quantum Electron1991，27，8： | 1 |
| 13 | Large single-mode rib waveguides in GeSi-Si and Si-on-SiO2 显示文摘 | SOREF R A SCHMIDTCHEN J PETERMANN K | 1991 | IEEE Journal of Quantum Electronics1991，27，8： | 1 |
| 14 | Electrically controlled birefringence of thin nematic films显示文摘 | SOREF R A RAFUSE M J | 1972 | J Appl Phys1972，43，5： | 1 |
| 15 | Practicable enhancement of spontaneous emission using surface plasmons显示文摘 | Sun G Khurgin J B Soref R A | | 0，，1： | 1 |
| 16 | Enhancement of luminescence efficiency using surface plasmon polaritons:figures of merit显示文摘 | Khurgin J B Sun G Soref R A | | 0，，08： | 1 |
| 17 | Radioprotective efficacy and toxicity of a new family of aminothiol analogs 显示文摘 | Copp R R Peebles D D Soref C M | 2013 | International Journal of Radiation Biology2013，89，7： | 1 |
| 18 | Fiber grating prism for true time delay beamsteering显示文摘 | | 1996 | Fiber and Integrated Optics1996，15，4： | 1 |
| 19 | Photonics beamformer for phased array antennas using a fiber grating prism显示文摘 | Soref R Payson A P | 1997 | IEEE Photon Technol Lett1997，9，2： | 1 |
| 20 | Voltage-controlled optical/RF phase shifter 显示文摘 | Soref R Hanscom | 1985 | Journal of Light Wave Technology1985，3，5： | 1 |
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