Abstract

A Mach–Zehnder interferometer (MZI) coupled microring is demonstrated experimentally to obtain a high sensitivity as well as a large range for measuring change in refractive index. For the present MZI-coupled microring, there is a major resonance wavelength with a high extinction ratio (16–36 dB) in a very large wavelength span. Consequently, a very large quasi-free spectral range (>120nm) is achieved, which helps to obtain a large measurement range. The MZI-coupled microring sensor is used for measuring the change of the ambient refractive index ranging from 1.0 to 1.538, and the sensitivity is as high as 111nm/refractive index unit.

© 2010 Optical Society of America

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2009 (2)

D. Dai, A. Fang, and J. E. Bowers, New J. Phys. 11, 125016 (2009).
[CrossRef]

D. Dai and S. He, J. Opt. Soc. Am. B 26, 511 (2009).
[CrossRef]

2007 (4)

2006 (2)

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

S. Cho and N. M. Jokerst, IEEE Photon. Technol. Lett. 18, 2096 (2006).
[CrossRef]

2005 (1)

2003 (1)

C.-Y. Chao and L. J. Guoa, Appl. Phys. Lett. 83, 1527 (2003).
[CrossRef]

2001 (1)

Armani, A. M.

A. M. Armani, R. P. Kulkarni, S. E. Fraser, R. C. Flagan, and K. J. Vahala, Science 317, 783 (2007).
[CrossRef] [PubMed]

Bowers, J. E.

D. Dai, A. Fang, and J. E. Bowers, New J. Phys. 11, 125016 (2009).
[CrossRef]

Boyd, R. W.

Chao, C.-Y.

C.-Y. Chao and L. J. Guoa, Appl. Phys. Lett. 83, 1527 (2003).
[CrossRef]

Cheben, J. Lapointe

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Chen, L.

Cho, S.

S. Cho and N. M. Jokerst, IEEE Photon. Technol. Lett. 18, 2096 (2006).
[CrossRef]

Dai, D.

D. Dai and S. He, J. Opt. Soc. Am. B 26, 511 (2009).
[CrossRef]

D. Dai, A. Fang, and J. E. Bowers, New J. Phys. 11, 125016 (2009).
[CrossRef]

Delâge, A.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Densmore, D.-X.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

DeRose, G. A.

Fang, A.

D. Dai, A. Fang, and J. E. Bowers, New J. Phys. 11, 125016 (2009).
[CrossRef]

Flagan, R. C.

A. M. Armani, R. P. Kulkarni, S. E. Fraser, R. C. Flagan, and K. J. Vahala, Science 317, 783 (2007).
[CrossRef] [PubMed]

Fraser, S. E.

A. M. Armani, R. P. Kulkarni, S. E. Fraser, R. C. Flagan, and K. J. Vahala, Science 317, 783 (2007).
[CrossRef] [PubMed]

Green, W. M. J.

Guoa, L. J.

C.-Y. Chao and L. J. Guoa, Appl. Phys. Lett. 83, 1527 (2003).
[CrossRef]

He, S.

Heebner, J. E.

Janz, P.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Jokerst, N. M.

S. Cho and N. M. Jokerst, IEEE Photon. Technol. Lett. 18, 2096 (2006).
[CrossRef]

Kashyap, R.

Kulkarni, R. P.

A. M. Armani, R. P. Kulkarni, S. E. Fraser, R. C. Flagan, and K. J. Vahala, Science 317, 783 (2007).
[CrossRef] [PubMed]

Lamontagne, B.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Lee, R. K.

Lipson, M.

Nemova, G.

Poon, A. W.

Post, E.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Scherer, A.

Schmid, J. H.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Sherwood-Droz, N.

Vahala, K. J.

A. M. Armani, R. P. Kulkarni, S. E. Fraser, R. C. Flagan, and K. J. Vahala, Science 317, 783 (2007).
[CrossRef] [PubMed]

Waldron, S.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Xu, P.

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

Yariv, A.

Zhou, L.

Appl. Opt. (1)

Appl. Phys. Lett. (1)

C.-Y. Chao and L. J. Guoa, Appl. Phys. Lett. 83, 1527 (2003).
[CrossRef]

IEEE Photon. Technol. Lett. (2)

D.-X. Densmore, P. Xu, S. Waldron, P. Janz, J. Lapointe Cheben, A. Delâge, B. Lamontagne, J. H. Schmid, and E. Post, IEEE Photon. Technol. Lett. 18, 2520 (2006).
[CrossRef]

S. Cho and N. M. Jokerst, IEEE Photon. Technol. Lett. 18, 2096 (2006).
[CrossRef]

J. Opt. Soc. Am. B (2)

New J. Phys. (1)

D. Dai, A. Fang, and J. E. Bowers, New J. Phys. 11, 125016 (2009).
[CrossRef]

Opt. Express (2)

Opt. Lett. (1)

Science (1)

A. M. Armani, R. P. Kulkarni, S. E. Fraser, R. C. Flagan, and K. J. Vahala, Science 317, 783 (2007).
[CrossRef] [PubMed]

Other (1)

D.R.Lyde, ed., Handbook of Chemistry and Physics (CRC Press, 1997–1998).

Cited By

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Figures (4)

Fig. 1
Fig. 1

Configuration of the present MZI-coupled microring.

Fig. 2
Fig. 2

(a) SEM image for the fabricated MZI-coupled microring. Inset, TE grating coupler. (b) Measured transmission response of MZI-coupled microring with deionized H 2 O cladding.

Fig. 3
Fig. 3

(a) Measured transmission responses of the MZI-coupled microring covered the aqueous solution of NaCl with different concentrations. (b) The major resonance wavelength λ MRR 0 shifts as the concentration varies.

Fig. 4
Fig. 4

(a) Measured transmission responses of the MZI-coupled microring covered with different liquids shown in Table 1. (b) Resonance wavelength λ MRR 0 and the extinction ratio.

Tables (1)

Tables Icon

Table 1 Refractive Indices of Liquids at 1.55 μm

Metrics