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Introduction
N O TE
N O TE
N O TE
Agilent N4373A Lightwave Component Analyzer, First Edition
• W/A for an E/O converter
Watt to the electrical stimulus amplitude in Ampere).
• A/W for an O/E converter (electrical response amplitude
in Ampere to the
In both cases, the responsivity in
calculated as 20⋅log(R) and may be written as "dB
"dB
", respectively.
A/W
For an O/O device, responsivity specifies:
• Responsivity, expressed in dBo, is the difference between
the
Modulated optical
expressed in dBm, at the output of the DUT and at the
input of the DUT. Responsivity, expressed in dBe, is the
difference between the electrical powers on the NWA that
correspond to the optical powers.
A difference between
dBo. The electrical equivalent (the responsivity) in dBe is twice
the value.
Responsivity of an O/E or E/O converter is also called conversion
efficiency.
Return loss (LCA optical in) Ratio between incident optical
power at LCA optical in and reflected optical power,
expressed in dBo.
System bandwidth The selectable modulation frequency range
of the LCA for measurements.
System bandwidth is a nominal specification.
Specifications and Regulatory Information
(Modulated optical power
Modulated optical power
Decibel (dBm, dBo, dBe)
power, with optical powers
Modulated optical power
in
in Watt).
is
" or
W/A
is expressed in
115
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