Author:
Abe Shunsuke,Joichi Tomoki,Uekusa Kouichiro,Hara Hideo,Masuda Shin
Abstract
Abstract
Photonic-integrated circuits (PICs) using ferroelectric materials are expected to be used in many applications because of its unique optical properties such as large electro-optic coefficients. In this study, a novel PIC based on a ferroelectric thin-film platform was designed and fabricated, where high-speed optical modulator, spot-size converters (SSCs), and a variable optical attenuator (VOA) were successfully integrated. A ferroelectric lanthanum-modified lead zirconate titanate (PLZT) thin film was epitaxially-grown by using a modified sol-gel method, and it exhibits large electro-optic coefficients (>120 pm/V) and low propagation loss (1.1 dB/cm). The optical modulator, a Mach-Zehnder type, exhibited a half-wave voltage (Vπ) of 6.0 V (VπL = 4.5 Vcm) and optical modulation up to 56 Gb/s. Also, the VOA (with attenuation range of more than 26 dB) was successfully integrated with the modulator. As a result, it is concluded that the developed ferroelectric platform can pave the way for photonic integration.
Publisher
Springer Science and Business Media LLC
Reference28 articles.
1. Watanabe, D. et al. 30 Gb/s Optical and electrical test solution for high-volume testing. IEEE ITC 1–10 (2013).
2. Fujibe, T. et al. An Optical interconnection test method applicable to 100-Gb/s transceivers using an ATE based hardware. IEEE 25th Asian test symposium (2016).
3. Fujibe, T. et al. An optical/electrical test system for 100Gb/s optical interconnection devices with high volume testing capability. IEEE European test symposium (2016).
4. Rabiei, P., Ma, J., Khan, S., Chiles, J. & Fathpour, S. Heterogeneous lithium niobate photonics on silicon substrates. Opt. Express 21, 25573–25581 (2013).
5. Jouane, Y., Chang, Y.-C., Luo, J., Jen, A. & Enami, Y. Unprecedented highest electro-optic coefficient of 226 pm/V for electro optic polymer/TiO2 multilayer slot waveguide modulators. Opt. Express 22, 27725–27732 (2014).
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献