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Integrated microwave acousto-optic frequency shifter on thin-film lithium niobate

Journal Article · · Optics Express
DOI:https://doi.org/10.1364/OE.397138· OSTI ID:1643189

Electrically driven acousto-optic devices that provide beam deflection and optical frequency shifting have broad applications from pulse synthesis to heterodyne detection. Commercially available acousto-optic modulators are based on bulk materials and consume Watts of radio frequency power. Here, we demonstrate an integrated 3-GHz acousto-optic frequency shifter on thin-film lithium niobate, featuring a carrier suppression over 30 dB. Further, we demonstrate a gigahertz-spaced optical frequency comb featuring more than 200 lines over a 0.6-THz optical bandwidth by recirculating the light in an active frequency shifting loop. Our integrated acousto-optic platform leads to the development of on-chip optical routing, isolation, and microwave signal processing.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0019219
OSTI ID:
1643189
Alternate ID(s):
OSTI ID: 1803636
Journal Information:
Optics Express, Journal Name: Optics Express Journal Issue: 16 Vol. 28; ISSN 1094-4087; ISSN OPEXFF
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English

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