TY - GEN
T1 - An Integrated Discrete-Time Microwave Photonic Filter Using Surface Acoustic Waves in Silicon
AU - Munk, Dvir
AU - Katzman, Moshe
AU - Hen, Mirit
AU - Priel, Maayan
AU - Bergman, Arik
AU - Zadok, Avi
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - An integrated discrete-Time microwave-photonic filter is implemented in standard silicon-on-insulator based on opto-mechanical interactions. Radio-frequency modulation of an incident optical pump is converted into slow-moving surface acoustic waves. The surface waves are delayed by up to 40 ns over 150 microns on-chip. Signals are recovered in the optical domain through photo-elastic modulation of probe light in multiple standard waveguides along the surface acoustic waves path. Devices do not require the suspension of silicon structures, piezo-electric actuation or hybrid material integration. A six-Tap filter is demonstrated experimentally, with a central frequency, free spectral range and passbands width of 2.4 GHz, 125 MHz and 20 MHz, respectively. The measured transfer function is in excellent agreement with design. The results establish a new concept for integrated microwave photonics processing in standard silicon.
AB - An integrated discrete-Time microwave-photonic filter is implemented in standard silicon-on-insulator based on opto-mechanical interactions. Radio-frequency modulation of an incident optical pump is converted into slow-moving surface acoustic waves. The surface waves are delayed by up to 40 ns over 150 microns on-chip. Signals are recovered in the optical domain through photo-elastic modulation of probe light in multiple standard waveguides along the surface acoustic waves path. Devices do not require the suspension of silicon structures, piezo-electric actuation or hybrid material integration. A six-Tap filter is demonstrated experimentally, with a central frequency, free spectral range and passbands width of 2.4 GHz, 125 MHz and 20 MHz, respectively. The measured transfer function is in excellent agreement with design. The results establish a new concept for integrated microwave photonics processing in standard silicon.
KW - acousto-optics
KW - microwave photonics
KW - optical signal processing
KW - opto-mechanics
KW - silicon photonics
KW - surface acoustic waves
UR - http://www.scopus.com/inward/record.url?scp=85075347793&partnerID=8YFLogxK
U2 - 10.1109/MWP.2019.8892180
DO - 10.1109/MWP.2019.8892180
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AN - SCOPUS:85075347793
T3 - 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
BT - 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE International Topical Meeting on Microwave Photonics, MWP 2019
Y2 - 7 October 2019 through 10 October 2019
ER -