scholarly journals Characterization of integrated photonic devices with minimum phase technique

2009 ◽  
Vol 17 (10) ◽  
pp. 8349 ◽  
Author(s):  
R. Halir ◽  
Í. Molina-Fernández ◽  
J. G. Wangüemert-Pérez ◽  
A. Ortega-Moñux ◽  
J. de-Oliva-Rubio ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Minimum Phase

Silicon photonic devices for mid-infrared applications

Nanophotonics ◽  
2014 ◽  
Vol 3 (4-5) ◽  
pp. 329-341 ◽  
Author(s):  
Raji Shankar ◽  
Marko Lončar
Keyword(s):  
Gas Sensing ◽  
Wavelength Region ◽  
Photonic Devices ◽  
Ring Resonators ◽  
Space Communications ◽  
Mid Infrared ◽  
Silicon Photonic ◽  
Processing Techniques ◽  
Silicon Based

AbstractThe mid-infrared (IR) wavelength region (2–20 µm) is of great interest for a number of applications, including trace gas sensing, thermal imaging, and free-space communications. Recently, there has been significant progress in developing a mid-IR photonics platform in Si, which is highly transparent in the mid-IR, due to the ease of fabrication and CMOS compatibility provided by the Si platform. Here, we discuss our group’s recent contributions to the field of silicon-based mid-IR photonics, including photonic crystal cavities in a Si membrane platform and grating-coupled high-quality factor ring resonators in a silicon-on-sapphire (SOS) platform. Since experimental characterization of microphotonic devices is especially challenging at the mid-IR, we also review our mid-IR characterization techniques in some detail. Additionally, pre- and post-processing techniques for improving device performance, such as resist reflow, Piranha clean/HF dip cycling, and annealing are discussed.

Complete response characterization of ultrafast linear photonic devices

2009 ◽  
Vol 34 (21) ◽  
pp. 3418 ◽  
Author(s):  
Tobias Kampfrath ◽  
Daryl M. Beggs ◽  
Thomas F. Krauss ◽  
L. (Kobus) Kuipers
Keyword(s):  
Complete Response ◽  
Photonic Devices

Transfer and characterization of silicon nanomembrane-based photonic devices on flexible polyimide substrate

2011 ◽  
Author(s):  
Xiaochuan Xu ◽  
Harish Subbaraman ◽  
Daniel Pham ◽  
Amir Hosseini ◽  
Xiaohui Lin ◽  
...  
Keyword(s):  
Photonic Devices ◽  
Polyimide Substrate ◽  
Silicon Nanomembrane

Simple method for manufacturing and optical characterization of tapered optical fibres

2016 ◽  
Vol 24 (4) ◽  
Author(s):  
A. Zakrzewski ◽  
A. Pięta ◽  
S. Patela
Keyword(s):  
Focal Length ◽  
Fdtd Method ◽  
Single Mode ◽  
Photonic Devices ◽  
Optical Fibres ◽  
Simple Method ◽  
Spot Diameter ◽  
Small Spot ◽  
Edge Method

AbstractPhotonic devices often use light delivered by a single-mode telecommunication fibre. However, as the diameter of the core of the optical fibre is of 10 microns, and the transverse dimensions of the photonic waveguides are usually micrometer or less, there is an issue of incompatibility. The problem may be solved by application of tapered optical fibres. For efficient light coupling, the taper should be prepared so as to create a beam of long focal length and small spot diameter in the focus. The article describes the design, fabrication and characterization of tapered optical fibres prepared with a fibre-optic fusion splicer. We modelled the tapers with FDTD method, for estimation of the influence of the tapered length and angle on the spot diameter and the focal length of an outgoing beam. We fabricated tapers from a standard single mode fibre by the Ericsson 995 PMfi- bre-optic fusion splicer. We planned the splicing technology so as to get the needed features of the beam. We planned a multistep fusion process, with optimized fusion current and fusion time. The experimental measurements of best tapered optical fibres were carried out by the knife-edge method.

Review of finite-element characterization of photonic devices

2003 ◽  
Vol 50 (12) ◽  
pp. 1835-1848 ◽  
Author(s):  
M. Rajarajan ◽  
B. M. A. Rahman ◽  
T. Wongcharoen ◽  
C. Themistos ◽  
N. Somasiri ◽  
...  
Keyword(s):  
Finite Element ◽  
Photonic Devices

Femtosecond Laser Processing of Glass Materials for Assembly-Free Fabrication of Photonic Microsensors

2014 ◽  
Vol 90 ◽  
pp. 166-173 ◽  
Author(s):  
Lei Yuan ◽  
Xin Wei Lan ◽  
Jie Huang ◽  
Hai Xiao
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Photonic Devices ◽  
Fused Silica ◽  
Femtosecond Laser Processing ◽  
Industry Applications ◽  
One Step ◽  
Photonic Sensors

Research and development in photonic micro/nanodevices and structures have experienced a significant growth in recent years, fueled by their broad applications as sensors for in situ measurement of a wide variety of physical, chemical and biological quantities. Recent advancement in ultrafast and ultra-intense pulsed laser technology has opened a new window of opportunity for one-step fabrication of micro-and even nanoscale 3D structures in various solid materials. When used for fabrication, fs lasers have many unique advantages such as negligible cracks, minimal heat-affected-zone, low recast, and high precision. These advantages enable the unique opportunity to fabricate integrated sensors with unprecedented performance, enhanced functionalities and improved robustness. This paper summarizes our recent research progresses in the understanding, design, fabrication, characterization of various photonic sensors for energy, defense, environmental, biomedical and industry applications. Femtosecond laser processing/ablation of various glass materials (fused silica, doped silica, sapphire, etc.) is discussed towards the goal of one-step fabrication of novel photonic sensors and new enabling photonic devices. A number of new photonic devices and sensors are also presented.

Active Photonic Crystal Devices in Self-Assembled Electro-Optic Polymeric Materials

2004 ◽  
Vol 817 ◽  
Author(s):  
J. Li ◽  
P. J. Neyman ◽  
M. Vercellino ◽  
J. R. Heflin ◽  
R. Duncan ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Polymeric Materials ◽  
Optical Characterization ◽  
Photonic Devices ◽  
Self Assembled Monolayers ◽  
Electro Optic ◽  
Assembled Monolayers ◽  
Novel Approaches ◽  
Self Assembled

AbstractPhotonic crystals (PC) offer novel approaches for integrated photonics by allowing the manipulation of light based on the photonic bandgap effect rather than internal-reflection mechanisms employed in traditional devices. Electro-optic polymers represent interesting possibilities for the development of devices leveraging control over the phase of a confined propagating wave. We here report on the development of such active photonic crystal technology in ionically self-assembled monolayers. The simulation of active photonic devices such as Mach-Zehnder interferometers and wavelength multiplexers is first presented. We then report on the synthesis and optical characterization of electro-optic films grown through the ISAM technique. We conclude by presenting the preliminary development of a nanofabrication platform that would enable the realization of active photonic devices in such materials.

Rigorous characterization of photonic devices using the finite element method

1999 ◽  
Author(s):  
B. M. A. Rahman ◽  
Muttukrishnan Rajarajan ◽  
Tiparatana Wongcharoen ◽  
Ferdinand A. Katsriku ◽  
Christos Themistos ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Photonic Devices ◽  
The Finite Element Method ◽  
Element Method
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