e·ta·lon

(ā′tə-lŏn′, ĕt′ə-)

A type of interferometer in which incoming light is repeatedly refracted and reflected between two surfaces into multiple beams that are then focused together, causing self-interference of the light.

[French étalon, standard (of weight or a unit of measurement), reference point, etalon (in reference to the fixed widths between the two surfaces in the first such interferometers), from Old French estalon, standard, of Germanic origin; akin to Middle Dutch stael, model, sample.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

etalon

(ˈɛtəˌlɒn)

(General Physics) physics a device used in spectroscopy to measure wavelengths by interference effects produced by multiple reflections between parallel half-silvered glass or quartz plates

[C20: French étalon a fixed standard of weights and measures, from Old French estalon; see also stallion]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Mentioned in

paragon

References in periodicals archive

Chan et al., "Chitosan based fiber-optic Fabry-Perot humidity sensor," Sensors and Actuators B: Chemical, vol.

Improving the Sensitivity of Humidity Sensor Based on Mach-Zehnder Interferometer Coated with a Methylcellulose

researched optical bistability in a Fabry-Perot cavity containing monolayer and bilayer graphene which have been observed optical bistability and experimentally realized graphene-based fast optical bistability [22].

Tunable Low Threshold Optical Tristability at Terahertz Frequencies via a Pair of Parallel Graphene Layers' Configuration

Park, "Design of a substrate-integrated Fabry-Perot cavity antenna for K-band applications," International Journal of Antennas and Propagation, vol.

Wideband Circularly Polarized Ellipse Antenna Array with Gain Enhancement

An FBG with [lambda]c = 1530.32 nm center wavelength at 23.5[degrees]C and [DELTA][lambda] = 0.99 nm wavelength width was used as the reflector to form an external Fabry-Perot cavity.

Distributed Intrusion Sensor Using DFB Laser with Optical Feedback and Saturable Absorber

(a) The FDML probe laser comprises a fiber Fabry-Perot tunable filter (FFP-TF), optical isolators (ISO) for unidirectional lasing, a semiconductor optical amplifier (SOA), a fiber-coupler (FC) output, a resonant time delay, and a polarization controller (PC) paddle.

Shot-Noise Limited Time-Encoded Raman Spectroscopy

2 PRINCIPLE AND STRUCTURE OF THE SENSOR 2.1 Principle of the Fabry-Perot interferometer

Detection of Acoustic Emission Signals with the Fabry-Perot Interferometer Type Optical Fiber Sensor

Successfully awarded as a result of HBM and Smartecs joint experience and ability to supply FBG (Fiber Bragg Grating) technology and Fabry-Perot interferometers to measure strain, displacement and temperature in the cryogenic environment found in the ITER magnets, the tender is one of the largest single orders ever received at FiberSensing.

Contract awarded

Large part of demonstrations focus on well-known NRZ-OOK to pseudo-return to zero (PRZ) format conversion, which could be performed with i) linear methods: fibre Bragg grating (FBG)-based notch filters [8], Fabry-Perot optical band-pass or comb filters [9] or ii) nonlinear methods: using self-phase modulation in a semiconductor optical amplifier [10].

All-optical NRZ-to-PRZ format conversion limitations using notch filters

[18] reported the progress in the performance and reliability of the optical fiber-based extrinsic Fabry-Perot interferometric (EFPI) strain sensor.

Structural health monitoring of civil infrastructure using optical fiber sensing technology: a comprehensive review