A reconfigurable Mach-Zenhnder interferometer (MZI) based on a microfluidic cavity (MFC) constructed by embedding a microfiber between two segments of single-mode fibers with pre-designed lateral offset has been proposed and experimentally demonstrated. The MFC serves as an interference arm with an eccentric annular cross section and allows convenient sample (gas or liquids) replacement procedure. The microfiber works as the other interference arm that provides the proposed device with ease of reconstruction and also enhances the force sensitivity. The re-configurability and the ultra-wide tuning sensitivity range are demonstrated by immersing the MZI constructed with a 484 μm-long-MFC and a microfiber 44 μm in diameter in different droplets. Ultrahigh sensitivities of 34.65 nm/°C (∼88 380 nm/RIU) and −493.7 nm/N (∼−590 pm/με) are experimentally achieved using a droplet with a refractive index of ∼1.44.

1.
M.
Consales
,
M.
Pisco
, and
A.
Cusano
,
Photonic Sens.
2
,
289
(
2012
).
2.
A. M.
Cubillas
,
S.
Unterkofler
,
T. G.
Euser
,
B. J. M.
Etzold
,
A. C.
Jones
,
P. J.
Sadler
,
P.
Wasserscheid
, and
P. St. J.
Russell
,
Chem. Soc. Rev.
42
,
8629
(
2013
).
3.
G. Y.
Chen
,
M.
Ding
,
T. P.
Newson
, and
G.
Brambilla
,
Open Opt. J.
7
,
32
(
2013
).
4.
F.
Baldini
,
M.
Brenci
,
F.
Chiavaioli
,
A.
Giannetti
, and
C.
Trono
,
Anal. Bioanal. Chem.
402
,
109
(
2012
).
5.
S. C. W.
Smith
and
T. M.
Monro
,
Opt. Express
22
,
1480
(
2014
).
6.
B. H.
Lee
,
Y. H.
Kim
,
K. S.
Park
,
J. B.
Eom
,
M. J.
Kim
,
B. S.
Rho
, and
H. Y.
Choi
,
Sensors
12
,
2467
(
2012
).
7.
C.
Lee
,
C.
Tai
,
C.
Chen
, and
P.
Han
,
Appl. Phys. Lett.
103
,
033515
(
2013
).
8.
J.
Wo
,
G.
Wang
,
Y.
Cui
,
Q.
Sun
,
R.
Liang
,
P.
Shum
, and
D.
Liu
,
Opt. Lett.
37
,
67
(
2012
).
9.
Z.
Tian
,
S. S. H.
Yam
,
J.
Barnes
,
W.
Bock
,
P.
Greig
,
J. M.
Fraser
,
H. P.
Loock
, and
R. D.
Oleschuk
,
IEEE Photonics Technol. Lett.
20
,
626
(
2008
).
10.
Y.
Xue
,
Y.
Yu
,
R.
Yang
,
C.
Wang
,
C.
Chen
,
J.
Guo
,
X.
Zhang
,
C.
Zhu
, and
H.
Sun
,
Opt. Lett.
38
,
1209
(
2013
).
11.
S.
Gao
,
W.
Zhang
,
P.
Geng
,
X.
Xue
,
H.
Zhang
, and
Z.
Bai
,
IEEE Photonics Technol. Lett.
24
,
1878
(
2012
).
12.
M.
Sumetsky
,
Y.
Dulashko
,
J. M.
Fini
,
A.
Hale
, and
D. J.
DiGiovanni
,
J. Lightwave Technol.
24
,
242
(
2006
).
13.
C.
Wu
,
M.
Vincent Tse
,
Z.
Liu
,
B.
Guan
,
C.
Lu
, and
H.
Tam
,
Opt. Lett.
38
,
3283
(
2013
).
14.
W. Z.
Song
,
A. Q.
Liu
,
S.
Swaminathan
,
C. S.
Lim
,
P. H.
Yap
, and
T. C.
Ayi
,
Appl. Phys. Lett.
91
,
223902
(
2007
).
15.
H.
Schmidt
and
A. R.
Hawkins
,
Nat. Photonics
5
,
598
(
2011
).
16.
D.
Psaltis
,
S. R.
Quake
, and
C.
Yang
,
Nature
442
,
381
(
2006
).
17.
T. M.
Squires
,
Rev. Mod. Phys.
77
,
977
(
2005
).
18.
X.
Fan
and
I. M.
White
,
Nat. Photonics
5
,
591
(
2011
).
19.
C.
Grillet
,
P.
Domachuk
,
V.
Ta'eed
,
E.
Magi
,
J. A.
Bolger
,
B. J.
Eggleton
,
L. E.
Rodd
, and
J. C.
White
,
Opt. Express
12
,
5440
(
2004
).
20.
P.
Domachuk
,
C.
Grillet
,
V.
Taeed
,
E.
Magi
,
J.
Bolger
,
B. J.
Eggleton
,
L. E.
Rodd
, and
J. C.
White
,
Appl. Phys. Lett.
86
,
024103
(
2005
).
21.
A. C.
Bedoya
,
C.
Monat
,
P.
Domachuk
,
C.
Grillet
, and
B. J.
Eggleton
,
Appl. Opt.
50
,
2408
(
2011
).
22.
M.
Yang
,
D. N.
Wang
,
Y.
Wang
, and
C. R.
Liao
,
Opt. Lett.
36
,
636
(
2011
).
23.
H.
Liang
,
W.
Zhang
,
H.
Wang
,
P.
Geng
,
S.
Zhang
,
S.
Gao
,
C.
Yang
, and
J.
Li
,
Opt. Lett.
38
,
4019
(
2013
).
24.
Y.
Wang
,
M.
Yang
,
D. N.
Wang
,
S.
Liu
, and
P.
Lu
,
J. Opt. Soc. Am. B
27
,
370
(
2010
).
25.
S.
Gao
,
W.
Zhang
,
Z.
Bai
,
H.
Zhang
,
P.
Geng
,
W.
Lin
, and
J.
Li
,
IEEE Photonics Technol. Lett.
25
,
1815
(
2013
).
26.
S.
Gao
,
W.
Zhang
,
Z.
Bai
,
H.
Zhang
,
L.
Wang
,
H.
Liang
, and
J.
Li
,
J. Lightwave Technol.
32
,
1682
(
2014
).
27.
E.
Li
,
G.
Peng
, and
X.
Ding
,
Appl. Phys. Lett.
92
,
101117
(
2008
).
28.
S. M.
Tripathi
,
A.
Kumar
,
R. K.
Varshney
,
Y. B. P.
Kumar
,
E.
Marin
, and
J. P.
Meunier
,
J. Lightwave Technol.
27
,
2348
(
2009
).
29.
W.
Luo
,
J.
Kou
,
Y.
Chen
,
F.
Xu
, and
Y.
Lu
,
Appl. Phys. Lett.
101
,
133502
(
2012
).
30.
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