In-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure

Leilei Shi; Tao Zhu; Dongmei Huang; Chuancan Liang; Min Liu; Shibin Liang

doi:10.1364/OL.42.000167

In-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure

Leilei Shi
, Tao Zhu
, Dongmei Huang
, Chuancan Liang
, Min Liu
, Shibin Liang

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

20 Citations (Scopus)

Abstract

An in-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure is demonstrated by femtosecond laser micromachining. Asymmetric spectra around the resonant wavelength of the whispering gallery cavities in different coupling states are experimentally observed. An extinction ratio of ∼7 dB and a slope of 117 dB/nm can be achieved in the asymmetric spectrum of the overcoupled whispering gallery cavity, where an additional π phase shift at the resonant wavelength is introduced to the Mach-Zehnder interferometer.

Original language	English
Pages (from-to)	167-170
Number of pages	4
Journal	Optics Letters
Volume	42
Issue number	1
DOIs	https://doi.org/10.1364/OL.42.000167
Publication status	Published - Dec 2016

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.42.000167

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title = "In-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure",

abstract = "An in-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure is demonstrated by femtosecond laser micromachining. Asymmetric spectra around the resonant wavelength of the whispering gallery cavities in different coupling states are experimentally observed. An extinction ratio of ∼7 dB and a slope of 117 dB/nm can be achieved in the asymmetric spectrum of the overcoupled whispering gallery cavity, where an additional π phase shift at the resonant wavelength is introduced to the Mach-Zehnder interferometer.",

author = "Leilei Shi and Tao Zhu and Dongmei Huang and Chuancan Liang and Min Liu and Shibin Liang",

note = "Funding Information: National Natural Science Foundation of China (NSFC) (61475029, 61520106012, 61635004); Key Research and Development Project of Ministry of Science and Technology of the People's Republic of China (MOST) (2016YFC0801200); Science Fund for Distinguished Young Scholars of Chongqing (CSTC2014JCYJJQ40002). Publisher Copyright: {\textcopyright} 2016 Optical Society of America.",

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AU - Shi, Leilei

AU - Zhu, Tao

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AU - Liang, Chuancan

AU - Liu, Min

AU - Liang, Shibin

N1 - Funding Information: National Natural Science Foundation of China (NSFC) (61475029, 61520106012, 61635004); Key Research and Development Project of Ministry of Science and Technology of the People's Republic of China (MOST) (2016YFC0801200); Science Fund for Distinguished Young Scholars of Chongqing (CSTC2014JCYJJQ40002). Publisher Copyright: © 2016 Optical Society of America.

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N2 - An in-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure is demonstrated by femtosecond laser micromachining. Asymmetric spectra around the resonant wavelength of the whispering gallery cavities in different coupling states are experimentally observed. An extinction ratio of ∼7 dB and a slope of 117 dB/nm can be achieved in the asymmetric spectrum of the overcoupled whispering gallery cavity, where an additional π phase shift at the resonant wavelength is introduced to the Mach-Zehnder interferometer.

AB - An in-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure is demonstrated by femtosecond laser micromachining. Asymmetric spectra around the resonant wavelength of the whispering gallery cavities in different coupling states are experimentally observed. An extinction ratio of ∼7 dB and a slope of 117 dB/nm can be achieved in the asymmetric spectrum of the overcoupled whispering gallery cavity, where an additional π phase shift at the resonant wavelength is introduced to the Mach-Zehnder interferometer.

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In-fiber Mach-Zehnder interferometer and sphere whispering gallery mode resonator coupling structure

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