An Integrated Low-Voltage Broadband Lithium Niobate Phase Modulator
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 8694012 |
Pages (from-to) | 889-892 |
Journal / Publication | IEEE Photonics Technology Letters |
Volume | 31 |
Issue number | 11 |
Online published | 19 Apr 2019 |
Publication status | Published - 1 Jun 2019 |
Link(s)
DOI | DOI |
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Document Link | Links |
Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85066109259&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(aa70a8de-b0f9-4bd0-aafc-71e692b00715).html |
Abstract
Electro-optic phase modulators are critical components in modern communication, microwave photonic, and quantum photonic systems. Important for these applications is to achieve modulators with low half-wave voltage at high frequencies. Here, we demonstrate an integrated phase modulator, based on a thin-film lithium niobite platform, which simultaneously features small on-chip loss (1 dB) and low half-wave voltage over a large spectral range (3.5-4.5 V at 5-40 GHz). By driving the modulator with a strong 30-GHz microwave signal corresponding to around four half-wave voltages, we generate an optical frequency comb consisting of over 40 sidebands spanning 10 nm in the telecom L-band. The high-electro-optic performance combined with the high-RF power-handling ability (3.1 W) of our integrated phase modulator is crucial for future photonics and microwave systems.
Research Area(s)
- Integrated optics device, lithium niobite, modulators
Citation Format(s)
An Integrated Low-Voltage Broadband Lithium Niobate Phase Modulator. / Ren, Tianhao; Zhang, Mian; Wang, Cheng et al.
In: IEEE Photonics Technology Letters, Vol. 31, No. 11, 8694012, 01.06.2019, p. 889-892.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review