scholarly journals Tunable single mode lasing from an on-chip optofluidic ring resonator laser

2011 ◽  
Vol 98 (6) ◽  
pp. 061103 ◽  
Author(s):  
Wonsuk Lee ◽  
Hao Li ◽  
Jonathan D. Suter ◽  
Karthik Reddy ◽  
Yuze Sun ◽  
...  
Keyword(s):  
Author(s):  
Wonsuk Lee ◽  
Hao Li ◽  
Jonathan D. Suter ◽  
Karthik Reddy ◽  
Yuze Sun ◽  
...  
Keyword(s):  

2021 ◽  
pp. 1-1
Author(s):  
Linpeng Gu ◽  
Yuan Qingchen ◽  
Qiang Zhao ◽  
Ji Yafei ◽  
Liu Ziyu ◽  
...  

Nanophotonics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 1265-1272
Author(s):  
Mengyuan Ye ◽  
Chunlei Sun ◽  
Yu Yu ◽  
Yunhong Ding ◽  
Xinliang Zhang

Abstract Ring resonator is an essential element in silicon integrated circuit, it is widely used as filter, wavelength multiplexer and switch in single-mode operation regime. As the rapid development of mode division multiplexing (MDM) technique, ring resonator that can process multi-mode signals simultaneously and uniformly is highly desired. However, the severe modal dispersion makes identical transmission for different modes very hard. In this paper, by breaking through the limitation of conventional multi-mode manipulation design with evanescent coupling or mode interference, we propose and demonstrate a multi-mode ring resonator (MMRR) inspired by the free space geometric optics. Arbitrary number of supporting modes can be achieved by simply widening the waveguide width. For proof-of-concept demonstration, an MMRR supporting four modes is fabricated with uniform transmittance. Furthermore, architecture of cascaded four MMRRs are also demonstrated experimentally.


2019 ◽  
Vol 27 (7) ◽  
pp. 1513-1526 ◽  
Author(s):  
Yuan Liang ◽  
Chirn Chye Boon ◽  
Chenyang Li ◽  
Xiao-Lan Tang ◽  
Herman Jalli Ng ◽  
...  

Author(s):  
Norfishah Ab Wahab ◽  
M. N. Md Tan ◽  
M. N. Hushim

<p class="Pa41">This paper presents a single mode pseudo-elliptic bandpass resonator based on closed-loop ring topology. The resonator is built from six quarter wavelength transmission lines to form a square closed-loop ring structure. This structure creates transmission zeros at the lower and upper sidebands so that high selectivity bandpass filter response is achieved. The advantage of this topology is that the design is less complex since no perturbation is needed on the ring lines for creation of transmission zeros. Higher-order filters can be constructed by introducing quarter-wavelength coupled-lines, coupled at both input and output of the closed-loop ring resonator. For proof of concept, the filters are designed at 10 GHz up to 3<sup>rd</sup> order, simulated using full-wave electromagnetic simulator on microstrip substrate, <em>FR-4</em> with characteristics given as <em>Ԑr </em>= 4.70, <em>h </em>= 1.499 mm and <em>tan δ </em>= 0.012.  The filters are simulated and responses are found to be agreeable with the proposed idea.</p>


2021 ◽  
Author(s):  
L. Tozzetti ◽  
A. Giacobbe ◽  
F. Di Pasquale ◽  
S. Faralli

Nanoscale ◽  
2021 ◽  
Vol 13 (37) ◽  
pp. 15830-15836
Author(s):  
Ahmad Syazwan Ahmad Kamal ◽  
Cheng-Chieh Lin ◽  
Di Xing ◽  
Yang-Chun Lee ◽  
Zhiyu Wang ◽  
...  

A newly developed lithographic in-mold patterning process is proposed to fabricate on-chip single-mode distributed-Bragg-reflector waveguide small lasers that utilized CsPbBr3 perovskite nanocrystals as the gain material.


Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3416 ◽  
Author(s):  
Nikolay Lvovich Kazanskiy ◽  
Svetlana Nikolaevna Khonina ◽  
Muhammad Ali Butt

In this paper, a racetrack ring resonator design based on a subwavelength grating double slot waveguide is presented. The proposed waveguide scheme is capable of confining the transverse electric field in the slots and the gaps between the grating segments. This configuration facilitates a large light–matter interaction which elevates the sensitivity of the device approximately 2.5 times higher than the one that can be obtained via a standard slot waveguide resonator. The best sensitivity of the design is obtained at 1000 nm/RIU by utilizing a subwavelength grating double slot waveguide of period 300 nm. The numerical study is conducted via 2D and 3D finite element methods. We believe that the proposed sensor design can play an important role in the realization of highly sensitive lab-on-chip sensors.


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