thermal chirp

French translation: Impulse Thermique

13:24 Oct 1, 2015

English to French translations [PRO]
Tech/Engineering - Patents / METHOD AND APPARATUS FOR TRANSMITTING A SIGNAL USING THERMAL CHIRP MANAGEMENT OF A DIRECTLY MODULATED TRANSMITTER

English term or phrase: thermal chirp

This invention relates to methods and apparatus for transmitting a signal, and more particularly to directly modulated laser transmitters whose frequency chirping is converted into an amplitude modulation after passage through an optical spectrum reshaper (OSR).

The offset signal level being offset from the middle signal level by an amount effective to reduce thermal chirp in the frequency modulated optical signal.

For the purposes of this patent application, a chirp managed directly modulated (CMDM) laser transmitter comprises a directly modulated laser and an optical spectrum reshaper (OSR).

In a fiber optic transmission system, which is limited by fiber dispersion, the chirp managed directly modulated (CMDM) laser provides a low chirp output in a compact package.

bout2chou
Tunisia

French translation:Impulse Thermique

Explanation:
On pourrais aussi dire "pépiement thermique"

Selected response from:

Jonathan Cohen
Canada
Local time: 23:15

Grading comment

4 KudoZ points were awarded for this answer

Summary of answers provided

fluctuation thermique

Marcombes (X)

modulation thermique

HERBET Abel

chirp thermique

FX Fraipont (X)

Impulse Thermique

Jonathan Cohen

Summary of reference entries provided

Another patent application

kashew

Answers

28 mins confidence:

Impulse Thermique

Explanation:
On pourrais aussi dire "pépiement thermique"

Jonathan Cohen
Canada
Local time: 23:15
Works in field
Native speaker of:

French
PRO pts in category: 21

3 hrs confidence:

modulation thermique

Explanation:
suggéré

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Note added at 3 hrs (2015-10-01 17:20:40 GMT)
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http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=125170...

HERBET Abel
Local time: 05:15
Native speaker of: French
PRO pts in category: 92

7 hrs confidence:

chirp thermique

Explanation:
"Doctorat ParisTech
https://tel.archives-ouvertes.fr/pastel-00998832/document
by K KECHAOU - ‎Related articles
le chirp thermique entrent en jeu. A plus haute fréquence, le chirp transitoire devient important voire dominant. L'extraction du CPR en régime ..."

"modelisation, conception et application d'un laser ...
http://www.theses.ulaval.ca/2006/24010/24010.pdf
by JF LECLERC - ‎2006
5.1.3 Très bas "chirp" dynamique. En plus de leur meilleur résistance au "chirp" thermique, les FGLs ont aussi un. "chirp" dynamique plus bas que les DFBs [88] .."

"Chirp - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Chirp
A chirp is a signal in which the frequency increases ('up-chirp') or decreases ('down-chirp') with time. In some sources, the term chirp is used interchangeably ..."

"Chirp — Wikipédia
https://fr.wikipedia.org/wiki/Chirp
Un chirp (mot d'origine anglaise signifiant « gazouillis ») est par définition1 un signal pseudo-périodique c modulé en fréquence autour d'une fréquence porteuse et également modulé en amplitude par une enveloppe a dont les variations sont lentes par rapport aux oscillations de la phase \phi :

FX Fraipont (X)
Belgium
Local time: 05:15
Native speaker of:

French
PRO pts in category: 652

2 days 8 hrs confidence:

fluctuation thermique

Explanation:
in the patent

https://www.google.co.in/patents/WO2006028531A2?cl=fr&hl=fr

Marcombes (X)
France
Local time: 05:15
Specializes in field
Native speaker of:

French
PRO pts in category: 94

Reference comments

24 mins

Reference: Another patent application

Reference information:
A digital chirp generator comprising a plurality of chirp generator nodes (10), each said chirp generator node (10) including frequency accumulator means (12) driving a phase accumulator means (14), said plurality of chirp generator nodes being pipelined together, whereby the frequency accumulator means (12) and the phase accumulator means (14) in a given chirp generator node (10) are interconnected with the corresponding accumulator means of the or each adjacent chirp generator node (10). v3.espacenet.com
Générateur numérique de modulation de fréquence d'impulsion comprenant plusieurs noeuds générateurs de modulation de fréquence d'impulsion (10), chacun desdits noeuds générateurs de modulation de fréquence d'impulsion (10) comprenant un moyen accumulateur de fréquence (12) attaquant un moyen accumulateur de phase (14), lesdits noeuds générateurs de modulation de fréquence d'impulsion se chevauchant les uns les autres, ce par quoi le moyen accumulateur de fréquence (12) et le moyen accumulateur de phase [...]

kashew
France
Native speaker of:

English
PRO pts in category: 32

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thermal chirp

French translation: Impulse Thermique

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thermal chirp

French translation: Impulse Thermique

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