TY - JOUR
T1 - Correct determination of net gain in Er-doped optical waveguide amplifier from pump-on/off measurement
AU - Zhang, De-Long
AU - Hua, Ping-Rang
AU - Pun, E. Y B
PY - 2007/11/1
Y1 - 2007/11/1
N2 - Starting with evolution equation of signal optical power in an Er-doped channel waveguide, rigorous theoretical expressions used for correct determination of net gain from signal enhancement measured by using pump-on/off method are derived. These expressions allow to clarify the argument on relationships between net gain, internal gain and signal enhancement in some earlier literatures. Physical implications of net gain, internal gain and signal enhancement expressions are analyzed. Standardized definitions for the three physical quantities are proposed. The definition for net gain is proposed on the basis of practical application of an EDWA in optical fiber communication and the definitions for the latter two are suggested based on the physical implication analysis of their expressions. © 2007 Elsevier B.V. All rights reserved.
AB - Starting with evolution equation of signal optical power in an Er-doped channel waveguide, rigorous theoretical expressions used for correct determination of net gain from signal enhancement measured by using pump-on/off method are derived. These expressions allow to clarify the argument on relationships between net gain, internal gain and signal enhancement in some earlier literatures. Physical implications of net gain, internal gain and signal enhancement expressions are analyzed. Standardized definitions for the three physical quantities are proposed. The definition for net gain is proposed on the basis of practical application of an EDWA in optical fiber communication and the definitions for the latter two are suggested based on the physical implication analysis of their expressions. © 2007 Elsevier B.V. All rights reserved.
KW - Er-doped waveguide amplifier
KW - Internal gain
KW - Net gain
KW - Signal enhancement
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-34548587102&origin=recordpage
U2 - 10.1016/j.optcom.2007.06.054
DO - 10.1016/j.optcom.2007.06.054
M3 - RGC 21 - Publication in refereed journal
SN - 0030-4018
VL - 279
SP - 64
EP - 67
JO - Optics Communications
JF - Optics Communications
IS - 1
ER -