scholarly journals On-chip Mach-Zehnder interferometer for OCT systems

2018 ◽  
Vol 7 (1-2) ◽  
pp. 103-106 ◽  
Author(s):  
Ton G. van Leeuwen ◽  
Imran B. Akca ◽  
Nikolaos Angelou ◽  
Nicolas Weiss ◽  
Marcel Hoekman ◽  
...  
Keyword(s):  
Zehnder Interferometer ◽  
Depth Range ◽  
Axial Resolution ◽  
Swept Source ◽  
System A ◽  
Swept Source Oct ◽  
On Chip ◽  
Device Size ◽  
Mach Zehnder Interferometer

AbstractBy using integrated optics, it is possible to reduce the size and cost of a bulky optical coherence tomography (OCT) system. One of the OCT components that can be implemented on-chip is the interferometer. In this work, we present the design and characterization of a Mach-Zehnder interferometer consisting of the wavelength-independent splitters and an on-chip reference arm. The Si3N4was chosen as the material platform as it can provide low losses while keeping the device size small. The device was characterized by using a home-built swept source OCT system. A sensitivity value of 83 dB, an axial resolution of 15.2 μm (in air) and a depth range of 2.5 mm (in air) were all obtained.

scholarly journals Characterization of Mach Zehnder interferometer plastic optical fiber for intensity-based temperature sensor

2021 ◽  
Vol 1918 (2) ◽  
pp. 022010
Author(s):  
Ian Yulianti ◽  
N M Dharma Putra ◽  
Fianti ◽  
H Rumiana ◽  
Z A F Latif ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Temperature Sensor ◽  
Zehnder Interferometer ◽  
Plastic Optical Fiber ◽  
Mach Zehnder Interferometer

On-chip silicon Mach–Zehnder interferometer sensor for ultrasound detection

2019 ◽  
Vol 44 (8) ◽  
pp. 1928 ◽  
Author(s):  
Boling Ouyang ◽  
Yanlu Li ◽  
Marten Kruidhof ◽  
Roland Horsten ◽  
Koen W. A. van Dongen ◽  
...  
Keyword(s):  
Zehnder Interferometer ◽  
On Chip ◽  
Mach Zehnder Interferometer

scholarly journals Characterization of Temperature Response of Asymmetric Tapered-Plastic Optical Fiber-Mach Zehnder Interferometer

2020 ◽  
Vol 10 (1) ◽  
pp. 34
Author(s):  
Ian Yulianti ◽  
Ngurah Made Darma Putra ◽  
Fianti Fianti ◽  
Abu Sahmah Mohd Supa’at ◽  
Helvi Rumiana ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Power Loss ◽  
Low Cost ◽  
Temperature Response ◽  
Temperature Sensors ◽  
Zehnder Interferometer ◽  
Maximum Deviation ◽  
Plastic Optical Fiber ◽  
Mach Zehnder Interferometer

Temperature measurement is important in various applications; therefore, various temperature sensors have been developed. Due to its advantages, many optical fiber-based temperature sensors have been proposed. The wavelength modulation-based optical sensor is interesting due to high accuracy. However, the complex fabrication process and high cost limit the advantages of the sensors. Therefore, we proposed a simple and low-cost Mach Zehnder interferometer (MZI) sensor using step-index plastic optical fiber (SI-POF). Performance characterization of the sensor to temperature variation is presented. The sensor consists of two tapers at several distances, forming an interferometer. The first taper was designed to be steep to allow excitation of cladding modes, while the second taper was gradual to suppress power loss. Characterizations were done in terms of sensitivity, hysteresis, and repeatability by analyzing the output spectrums recorded by the spectrometer at various environment temperatures, 35oC to 85oC, with an increment of 10oC. The results showed that the sensor has a sensitivity of 0.0431 nm/oC and a correlation coefficient of 0.9965. Hysteresis of 6.9×10-3 was observed. In terms of repeatability, the sensor shows a maximum deviation, ±3oC, which was mainly resulted from the fluctuation of the oven temperature. Despite its high deviation, the sensor has advantages of simple fabrication, low cost, robust, and low power loss, which make it a good candidate for temperature sensors.

scholarly journals In-Fiber Mach-Zehnder Interferometer Based on Three-Core Fiber for Measurement of Directional Bending

Sensors ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 205 ◽  
Author(s):  
Lei Ding ◽  
Yu Li ◽  
Cai Zhou ◽  
Min Hu ◽  
Yuli Xiong ◽  
...  
Keyword(s):  
Single Mode ◽  
Zehnder Interferometer ◽  
Swept Source ◽  
The Core ◽  
Biomedical Sensing ◽  
Highly Sensitive ◽  
Potential Applications ◽  
Core Fiber ◽  
Bending Sensor ◽  
Mach Zehnder Interferometer

A highly sensitive directional bending sensor based on a three-core fiber (TCF) Mach-Zehnder interferometer (MZI) is presented in this study. This MZI-based bending sensor was fabricated by fusion-splicing a section of TCF between two single-mode fibers (SMF) with core-offset. Due to the location of the core in the TCF, a bend applied to the TCF-based MZI led to an elongation or shortening of the core, which makes the sensor suitable for directional bending measurement. To analyze the bending characteristics, two types of TCF-based sensors, with the fusion-spliced core located at different positions between the SMFs, were investigated. A swept source was employed in the measurement technique. The experimental results showed that, for the two types of sensors in this setup, the bending sensitivities of the two sensors were 15.36 nm/m−1 and 3.11 nm/m−1 at the bending direction of 0°, and −20.48 nm/m−1 and −5.29 nm/m−1 at the bending direction of 180°. The temperature sensitivities of the two sensors were 0.043 nm/°C and 0.041 nm/°C, respectively. The proposed sensors are compact, versatile, inexpensive to fabricate, and are expected to have potential applications in biomedical sensing.

Plasmonic Mach–Zehnder Interferometer for Ultrasensitive On-Chip Biosensing

ACS Nano ◽  
2011 ◽  
Vol 5 (12) ◽  
pp. 9836-9844 ◽  
Author(s):  
Yongkang Gao ◽  
Qiaoqiang Gan ◽  
Zheming Xin ◽  
Xuanhong Cheng ◽  
Filbert J. Bartoli
Keyword(s):  
Zehnder Interferometer ◽  
On Chip ◽  
Mach Zehnder Interferometer
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