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low loss bound modes

Polish translation: niskostratne mody prowadzone

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:low loss bound modes
Polish translation:niskostratne mody prowadzone
Entered by: Paweł Janiszewski

06:20 Jun 29, 2020
English to Polish translations [PRO]
Tech/Engineering - Engineering (general) / optical fibers
English term or phrase: low loss bound modes
With a tapered optical fiber, light rays that otherwise would radiate away from the fiber core are coupled as low loss bound modes and propagate for much longer lengths.

https://patents.google.com/patent/US8463083B2/en




(Byłem przekonany, że gdzieś tam w mojej głowie pozostała wiedza z zakresu fotoniki, ale jak widać z czasem jest coraz gorzej, jeśli się nie pracuje non stop w dziedzinie...)
Paweł Janiszewski
Poland
Local time: 03:05
niskostratne mody prowadzone
Explanation:
niskostratne mody prowadzone

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Note added at 44 mins (2020-06-29 07:04:38 GMT)
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mod prowadzony / mod związany

bound mode
in an optical fibre, a mode whose field decays monotonically in the transverse direction everywhere external to the core and which does not lose power to radiation

Note 1 – Where the refractive index decreases with distance from the axis and where there is no central refractive index dip a bound mode is one for which :

n(a)k ≤ β ≤ n(0)k

where β is the imaginary part (phase coefficient) of the axial propagation coefficient,
n(a) is the refractive index at r = a, the radius,
n(0) is the refractive index at r = 0,
k is the angular free space wavenumber 2 π/λ and λ is the wavelength.

Note 2 – Bound modes correspond to guided light rays in the terminology of geometric optics.

Note 3 – In a multimode fibre, the power in bound modes is predominantly contained in the core of the fibre.
http://www.electropedia.org/iev/iev.nsf/display?openform&iev...

--------------------------------------------------
Note added at 48 mins (2020-06-29 07:08:14 GMT)
--------------------------------------------------

Dodatkowo, specjalna grupa rdzeniowych, niskostratnych modów prowadzonych istnieje we wszystkich optycznych strukturach periodycznych na granicy ośrodków refrakcyjnych i nazywana jest modami powierzchniowymi.
http://koral.ise.pw.edu.pl/~rrom/kapilary/KapilPW.pdf
Selected response from:

mike23
Poland
Local time: 03:05
Grading comment
Dziękuję
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +1niskostratne mody prowadzone
mike23


  

Answers


42 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +1
niskostratne mody prowadzone


Explanation:
niskostratne mody prowadzone

--------------------------------------------------
Note added at 44 mins (2020-06-29 07:04:38 GMT)
--------------------------------------------------

mod prowadzony / mod związany

bound mode
in an optical fibre, a mode whose field decays monotonically in the transverse direction everywhere external to the core and which does not lose power to radiation

Note 1 – Where the refractive index decreases with distance from the axis and where there is no central refractive index dip a bound mode is one for which :

n(a)k ≤ β ≤ n(0)k

where β is the imaginary part (phase coefficient) of the axial propagation coefficient,
n(a) is the refractive index at r = a, the radius,
n(0) is the refractive index at r = 0,
k is the angular free space wavenumber 2 π/λ and λ is the wavelength.

Note 2 – Bound modes correspond to guided light rays in the terminology of geometric optics.

Note 3 – In a multimode fibre, the power in bound modes is predominantly contained in the core of the fibre.
http://www.electropedia.org/iev/iev.nsf/display?openform&iev...

--------------------------------------------------
Note added at 48 mins (2020-06-29 07:08:14 GMT)
--------------------------------------------------

Dodatkowo, specjalna grupa rdzeniowych, niskostratnych modów prowadzonych istnieje we wszystkich optycznych strukturach periodycznych na granicy ośrodków refrakcyjnych i nazywana jest modami powierzchniowymi.
http://koral.ise.pw.edu.pl/~rrom/kapilary/KapilPW.pdf

mike23
Poland
Local time: 03:05
Works in field
Native speaker of: Native in PolishPolish
PRO pts in category: 157
Grading comment
Dziękuję
Notes to answerer
Asker: "Prowadzone" - tego mi brakowało. Nie mogłem skojarzyć, że "bound" i "guided" to to samo. Dzięki :)

Asker: "In principle, the light injected into a waveguide can be fully decomposed into a set of modes, which are all either <b>guided modes (bound modes)</b> or radiation modes (unbound modes, cladding modes)" https://www.rp-photonics.com/leaky_modes.html


Peer comments on this answer (and responses from the answerer)
agree  Frank Szmulowicz, Ph. D.
5 hrs
  -> Dziękuję Frank. Pozdrawiam.
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