erbium

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Related to EDFA: Raman amplifier, Oadm

erbium

 (Er) [er´be-um]
a chemical element, atomic number 68, atomic weight 167.26. (See Appendix 6.)

er·bi·um (Er),

(er'bē-ŭm),
A rare earth (lanthanide) element, atomic no. 68, atomic wt. 167.26.
[from Ytterby, a village in Sweden]

er·bi·um

(Er) (ĕr'bē-ŭm)
A rare earth (lanthanide) element, atomic no. 68, atomic wt. 167.26.
[from Ytterby, a village in Sweden]

er·bi·um

(Er) (ĕr'bē-ŭm)
A rare earth element.
[from Ytterby, a village in Sweden]
References in periodicals archive ?
Ademas, resalta que el empleo de amplificadores Raman garantiza una mejor distribucion de potencia a lo largo de la fibra optica, y reducen los efectos no lineales; los amplificadores Raman son usados en conjunto con amplificacion EDFA para cubrir un margen de longitudes de onda mas amplios no cubierto por los EDFA.
Lembrikov, "All-Optical AGC of EDFA based on SOA", IEEE J Quantum Electron., vol.
The main difference between the SOA and EDFA amplifiers is the active area where the gain generation happens.
System components Downstream BBS power [dBm] 0 CO insertion loss [dB] 3.75 25 Km fiber loss [dB] 6.25 2: 64 OCP insertion loss [dB] 18 Insertion loss [dB] 4.75 Total losses -32.75 EDFA gain [dB] 25 Received power [dB] -7.75 Receiver sensitivity [dBm] -24 Table 5: Components description, connection availability, and cost [11,12].
of channels and for a particular power level (in dBm) of laser diode and EDFA. This bit error rate analysis is for short/medium transmission distance (<12Km).The dynamic noise for CW laser is 3dB.
The 1557 nm CW laser diode output is modulated to a pulse stream and then amplified using an EDFA. An optical filter, [FLT.sub.0], with the FWHM) of 7 nm is used to suppress the noise of the EDFA.
(450) The bonds issued by the EDFA can be either =able or tax-exempt.
In addition, the product contains built-in passive optical filters (Mux/DeMux) and two EDFA boosters, enabling point-to-point, linear add and drop and ring topologies in both transponder and regenerator modes.
Onetta designs and manufactures intelligent erbium-doped fibre amplifiers (EDFA) for current and next-generation optical communication networks.
The FA4517S EDFA allows amplification of optical broadcast and narrowcast signals, as needed, for extending reach or overcoming passive losses associated with splitting and combining of optical signals.
The Infant and Dietetic Foods Association (EDFA), which represents baby food manufacturers,said in a statement: ``All infant formulas, liquid and powdered,are produced under stringent hygienic conditions, and comply with strict international microbiological specifications.''
Breakthroughs like the erbium-doped fiber amplifier (EDFA), and wavelength division multiplexing (WDM) technologies drove much of that innovation.