Results 31 to 40 of about 311,065 (292)

Ion beam micromachining of integrated optics components [PDF]

open access: yes, 1973
Thin film integrated optics components such as light guides, modulators, directional couplers, and polarizers demand high quality edge smoothness and high resolution pattern formation in dimensions down to submicrometer size.
Garmire, E.   +4 more
core   +1 more source

High-Order Interference Effect Introduced by Polarization Mode Coupling in Polarization—Maintaining Fiber and Its Identification

open access: yesSensors, 2016
The high-order interference (HOI)—The interferogram introduced by polarization mode couplings (PMC) of multiple perturbations—Will cause misjudgment of the realistic coupling points in polarization-maintaining fiber (PMF) which is tested with a white ...
Chuang Li   +7 more
doaj   +1 more source

Operation of Fabry-Perot laser with nonlinear PT-symmetric mirror [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2021
The above-threshold operation of a Fabry-Perot laser with a nonlinear PT (parity time) mirror is investigated. For the first time, the analysis accounts for gain saturation of an active medium as well as gain and loss saturation effects in the PT mirror.
Agnieszka Mossakowska-Wyszyńska   +2 more
doaj   +1 more source

Modal Interferometer Using Three-Core Fiber for Simultaneous Measurement Strain and Temperature

open access: yesIEEE Photonics Journal, 2016
A structure made of tapered three-core fiber and CO2 laser notch long-period fiber grating is proposed in this paper. By adjusting the taper waist diameter of a three-core fiber, this structure is made suitable for simultaneous strain and temperature ...
Tao Geng   +7 more
doaj   +1 more source

Integrated optics for astronomical interferometry. I. Concept and astronomical applications

open access: yes, 1999
We propose a new instrumental concept for long-baseline optical single-mode interferometry using integrated optics which were developed for telecommunication.
F. Malbet   +5 more
core   +1 more source

Integrated optics for astronomical interferometry - VI. Coupling the light of the VLTI in K band [PDF]

open access: yes, 2005
Our objective is to prove that integrated optics (IO) is not only a good concept for astronomical interferometry but also a working technique with high performance.
A. Delboulbé   +32 more
core   +5 more sources

Up-Conversion Luminescence and C-Band Laser in Er3+-Doped Fluorozirconate Glass Microsphere Resonator

open access: yesIEEE Photonics Journal, 2019
Up-conversion luminescence and C-band microsphere laser output is reported for an Er3+-doped ZrF4-BaF2-YF3-AlF3 (ZBYA) fluorozirconate glass microsphere. The microsphere was fabricated by heating a ZBYA glass filament using a CO2 laser beam.
Haiyan Zhao   +9 more
doaj   +1 more source

Reduced-Threshold Emission of Capillary Filled by Doped-Dye Cholesteric Liquid Crystals With Photo-Alignment Polyimide Films

open access: yesIEEE Photonics Journal, 2018
A microcavity laser is reported using dye-doped cholesteric liquid crystals (CLCs) filled in a glass capillary with photo-alignment polyimide films. This laser runs based on the properties that a CLC has a refractive index much higher than that of glass,
Yue-Lan Lu   +5 more
doaj   +1 more source

Modeling update for the Thirty Meter Telescope laser guide star dual-conjugate adaptive optics system [PDF]

open access: yes, 2010
This paper describes the modeling efforts undertaken in the past couple of years to derive wavefront error (WFE) performance estimates for the Narrow Field Infrared Adaptive Optics System (NFIRAOS), which is the facility laser guide star (LGS) dual ...
Ellerbroek, Brent   +2 more
core   +1 more source

Design and characterization of SiON integrated optics components for optical coherence tomography [PDF]

open access: yes, 2009
Optical coherence tomography (OCT) is a technique for high resolution imaging of biological tissues with a depth range of a few millimeters. OCT is based on interferometry to enable depth ranging.
Driessen, A.   +7 more
core   +2 more sources

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