Tailoring holes for improving the efficiency of single-mode photonic crystal waveguide lasers on InP substrate

2006 ◽  
Vol 89 (7) ◽  
pp. 071108 ◽  
Author(s):  
X. Checoury ◽  
P. Boucaud ◽  
X. Li ◽  
J.-M. Lourtioz ◽  
E. Derouin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Mode ◽  
Photonic Crystal Waveguide ◽  
Waveguide Lasers ◽  
Inp Substrate

Distributed feedback regime of photonic crystal waveguide lasers at 1.5μm

2004 ◽  
Vol 85 (23) ◽  
pp. 5502-5504 ◽  
Author(s):  
X. Checoury ◽  
P. Boucaud ◽  
J-M. Lourtioz ◽  
F. Pommereau ◽  
C. Cuisin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Distributed Feedback ◽  
Photonic Crystal Waveguide ◽  
Waveguide Lasers

High transmission and single-mode operation in low-index-contrast photonic crystal waveguide devices

2004 ◽  
Vol 84 (5) ◽  
pp. 663-665 ◽  
Author(s):  
M. Augustin ◽  
H.-J. Fuchs ◽  
D. Schelle ◽  
E.-B. Kley ◽  
S. Nolte ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Mode ◽  
Photonic Crystal Waveguide ◽  
Single Mode Operation ◽  
High Transmission ◽  
Mode Operation ◽  
Waveguide Devices ◽  
Index Contrast

scholarly journals Single-mode in-gap emission of medium-width photonic crystal waveguides on InP substrate

2005 ◽  
Vol 13 (18) ◽  
pp. 6947 ◽  
Author(s):  
X. Checoury ◽  
P. Crozat ◽  
J-M. Lourtioz ◽  
C. Cuisin ◽  
E. Derouin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Single Mode ◽  
Photonic Crystal Waveguides ◽  
Inp Substrate

1.5μm room-temperature emission of square-lattice photonic-crystal waveguide lasers with a single line defect

2005 ◽  
Vol 86 (15) ◽  
pp. 151111 ◽  
Author(s):  
X. Checoury ◽  
P. Boucaud ◽  
J.-M. Lourtioz ◽  
O. Gauthier-Lafaye ◽  
S. Bonnefont ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Room Temperature ◽  
Square Lattice ◽  
Single Line ◽  
Photonic Crystal Waveguide ◽  
Line Defect ◽  
Waveguide Lasers

scholarly journals Double-layer graphene on photonic crystal waveguide electro-absorption modulator with 12 GHz bandwidth

Nanophotonics ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 2377-2385 ◽  
Author(s):  
Zhao Cheng ◽  
Xiaolong Zhu ◽  
Michael Galili ◽  
Lars Hagedorn Frandsen ◽  
Hao Hu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Double Layer ◽  
Slow Light ◽  
Modulation Depth ◽  
Photonic Crystal Waveguide ◽  
Optical Modulators ◽  
Layer Graphene ◽  
Silicon Photonic ◽  
On Chip ◽  
Silicon Based

AbstractGraphene has been widely used in silicon-based optical modulators for its ultra-broadband light absorption and ultrafast optoelectronic response. By incorporating graphene and slow-light silicon photonic crystal waveguide (PhCW), here we propose and experimentally demonstrate a unique double-layer graphene electro-absorption modulator in telecommunication applications. The modulator exhibits a modulation depth of 0.5 dB/μm with a bandwidth of 13.6 GHz, while graphene coverage length is only 1.2 μm in simulations. We also fabricated the graphene modulator on silicon platform, and the device achieved a modulation bandwidth at 12 GHz. The proposed graphene-PhCW modulator may have potentials in the applications of on-chip interconnections.

scholarly journals Towards lab-on-chip ultrasensitive ethanol detection using photonic crystal waveguide operating in the mid infrared

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ali Rostamian ◽  
Ehsan Madadi-Kandjani ◽  
Hamed Dalir ◽  
Volker J. Sorger ◽  
Ray T. Chen
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
High Sensitivity ◽  
Guided Wave ◽  
Silicon On Insulator ◽  
Group Index ◽  
Photonic Crystal Waveguide ◽  
Mid Infrared ◽  
Lab On Chip ◽  
On Chip

Abstract Thanks to the unique molecular fingerprints in the mid-infrared spectral region, absorption spectroscopy in this regime has attracted widespread attention in recent years. Contrary to commercially available infrared spectrometers, which are limited by being bulky and cost-intensive, laboratory-on-chip infrared spectrometers can offer sensor advancements including raw sensing performance in addition to use such as enhanced portability. Several platforms have been proposed in the past for on-chip ethanol detection. However, selective sensing with high sensitivity at room temperature has remained a challenge. Here, we experimentally demonstrate an on-chip ethyl alcohol sensor based on a holey photonic crystal waveguide on silicon on insulator-based photonics sensing platform offering an enhanced photoabsorption thus improving sensitivity. This is achieved by designing and engineering an optical slow-light mode with a high group-index of n g  = 73 and a strong localization of modal power in analyte, enabled by the photonic crystal waveguide structure. This approach includes a codesign paradigm that uniquely features an increased effective path length traversed by the guided wave through the to-be-sensed gas analyte. This PIC-based lab-on-chip sensor is exemplary, spectrally designed to operate at the center wavelength of 3.4 μm to match the peak absorbance for ethanol. However, the slow-light enhancement concept is universal offering to cover a wide design-window and spectral ranges towards sensing a plurality of gas species. Using the holey photonic crystal waveguide, we demonstrate the capability of achieving parts per billion levels of gas detection precision. High sensitivity combined with tailorable spectral range along with a compact form-factor enables a new class of portable photonic sensor platforms when combined with integrated with quantum cascade laser and detectors.

Sign in / Sign up

Export Citation Format

Share Document