scholarly journals An integrated optic ethanol vapor sensor based on a silicon-on-insulator microring resonator coated with a porous ZnO film

2010 ◽  
Vol 18 (11) ◽  
pp. 11859 ◽  
Author(s):  
Nebiyu A. Yebo ◽  
Petra Lommens ◽  
Zeger Hens ◽  
Roel Baets
Keyword(s):  
Ethanol Vapor ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Zno Film ◽  
Vapor Sensor

scholarly journals Tunable Microwave Phase Shifter Based on Silicon-on-Insulator Microring Resonator

2010 ◽  
Vol 22 (12) ◽  
pp. 869-871 ◽  
Author(s):  
Minhao Pu ◽  
Liu Liu ◽  
Weiqi Xue ◽  
Yunhong Ding ◽  
Lars H. Frandsen ◽  
...  
Keyword(s):  
Phase Shifter ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Tunable Microwave ◽  
Microwave Phase Shifter

scholarly journals Compact Inner-Wall Grating Slot Microring Resonator for Label-Free Sensing

Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 5038 ◽  
Author(s):  
Hongjun Gu ◽  
He Gong ◽  
Chunxue Wang ◽  
Xiaoqiang Sun ◽  
Xibin Wang ◽  
...  
Keyword(s):  
Refractive Index ◽  
Sodium Chloride ◽  
High Sensitivity ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Label Free ◽  
Detection Range ◽  
Sodium Chloride Solutions ◽  
Sensing Application ◽  
Index Unit

In this paper, we present and analyze a compact inner-wall grating slot microring resonator (IG-SMRR) with the footprint of less than 13 μm × 13 μm on the silicon-on-insulator (SOI) platform for label-free sensing, which comprises a slot microring resonator (SMRR) and inner-wall grating (IG). Its detection range is significantly enhanced without the limitation of the free spectral region (FSR) owing to the combination of SMRR and IG. The IG-SMRR has an ultra-large quasi-FSR of 84.5 nm as the detection range, and enlarged factor is up to over 3 compared with the conventional SMRR. The concentration sensitivities of sodium chloride solutions and D-glucose solutions are 996.91 pm/% and 968.05 pm/%, respectively, and the corresponding refractive index (RI) sensitivities are 559.5 nm/RIU (refractive index unit) and 558.3 nm/RIU, respectively. The investigation on the combination of SMRR and IG is a valuable exploration of label-free sensing application for ultra-large detection range and ultra-high sensitivity in future.

Performance of the Active Microring Resonator Based on SOI Rib Waveguide

2012 ◽  
Vol 462 ◽  
pp. 375-379
Author(s):  
B. Mardiana ◽  
A.R. Hanim ◽  
H. Hazura ◽  
S. Shaari ◽  
P. Susthitha Menon ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ring Resonator ◽  
Refractive Index Change ◽  
Electrical Signal ◽  
Free Carrier ◽  
Simulation Software ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Carrier Injection ◽  
Rib Waveguide

Micro-ring resonator based on silicon-on-insulator (SOI) has been extensively studied due to its many advantages, thus promising to improve the optoelectronic integrated circuit performance. This paper highlights the study of the free carrier injection effect on the silicon rib waveguide with p-i-n diode structure integrated in the SOI micro-ring resonator. The free carrier concentrations have been modulated by the electrical signal that can cause change of refractive index of the micro-ring resonator. The device performances are predicted by using numerical modelling software 2D SILVACO and Finite Difference Time Domain method simulation software RSOFT. The results show the change of refractive index is maximized at a greater applied voltage. A shift in resonant wavelength of around 6.7 nm was predicted at 0.9V with 1.14x10-3refractive index change. It is also shown that 8.5dB change of the output response obtained through the output.

Investigation of the electrical conductivity and optical property of polyaniline-based nanocomposite and its application as an ethanol vapor sensor

2015 ◽  
Vol 39 (5) ◽  
pp. 3728-3735 ◽  
Author(s):  
Md. Dilwar Alam Khan ◽  
Arshia Akhtar ◽  
Syed Ashfaq Nabi
Keyword(s):  
Electrical Conductivity ◽  
Optical Property ◽  
Ethanol Vapor ◽  
Quick Response ◽  
Ethanol Sensor ◽  
Conducting Polyaniline ◽  
Vapor Sensor

A semi-conducting polyaniline–Sn(iv)iodophosphate nanocomposite ethanol sensor with quick response and reproducible behavior.

2x2 Optical Switch Based on Silicon-on-Insulator Microring Resonator

2011 ◽  
Vol 378-379 ◽  
pp. 531-534
Author(s):  
B. Mardiana ◽  
Hanim Abdul Razak ◽  
H. Hazura ◽  
S. Shaari ◽  
P. Susthitha Menon ◽  
...  
Keyword(s):  
Optical Switch ◽  
Free Spectral Range ◽  
Fdtd Method ◽  
Single Mode ◽  
Microring Resonator ◽  
Silicon On Insulator ◽  
Electric Signal ◽  
Compact Size ◽  
Near Future ◽  
Difference Time

In near future, silicon-on-insulator (SOI) microring resonator are expected to be basic components for wavelength filtering and switching due to their compact size and wide free spectral range (FSR). In this paper, a 2X2 optical switch by using active microring resonator is proposed. The switch is consists of second order serially cascaded microring coupled to a pair of waveguide. The ON/OFF state of the design is control by electric signal which will vary the refractive index. The device is design to operate at 1.55µm wavelength. With a 500nm x 200nm rib dimensions, the design is proven to have single mode behaviour. Finite-Difference Time-Domain (FDTD) method simulation by RSOFT software is use to characterize the device performance. The results show that the 2X2 optical switch proposed can be an efficient device to be functioning in WDM application.

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