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Parameter
Definition |
Example
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Wavelength
Range is defined as spectral range over which
the DPSK demodulator
can operate. |
1528.77
~ 1563.86 nm
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DPSK
is acronym for Differential Phase-Shift
Keying |
-
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DLI
is acronym for Delay Line
Interferometer. |
-
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DQPSK
is acronym for Differential Quaternary
Phase-Shift Keying |
-
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DPSK
Demodulator is a component that converts phase
modulation into amplitude modulation. |
-
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Insertion
Loss (dB) is the relative peak power level transmitted
to the output ports referenced to the 0-dB reference
level when the DPSK demodulator is inserted. "On"
and "Off" ports are reported separately. |
1.7
dB
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Insertion
Loss Uniformity (dB) is defined as maximum insertion
loss difference between the adjacent channels of the
two output ports across the whole operating wavelength
range. |
0.5
dB
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Isolation/Extinction
Ratio (dB) is defined as the power difference
between peak and valley of the spectrum. "On"
and "Off" ports are reported separately. |
18
dB
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Polarization
Dependent Loss (PDL) (dB) is the power difference
between the two extreme polarization states. "On"
and "Off" ports are reported separately. |
0.2
dB
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Polarization
Dependent Frequency Shift (PDFS) (deg) is the
maximum frequency difference measured at the valley
of power spectrum among all polarization states. |
3
deg
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Optical Return Loss
(dB) is the ratio between the input power and the
reflected power over all polarization states at each
port , RL = -10×log10(Pr/Pin). |
40
dB
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Tuning
Range (TR) (GHz) is the maximum shift variation
of a center frequency of the spectrum driven by applying
control voltage to DPSK demodulator. |
1.5×FSR
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Tuning
Speed (TS) (second) is the time needed by the
device to tune the frequency to its half of target
position. |
1
s
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Operating
Temperature (°C) is the ambient temperature
range over which the device's performance spec can
be met. |
-5
to 65 °C
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Storage
Temperature (°C) is the ambient temperature
range over which the device can be stored without
affecting its intended application afterwards. |
-40
to 85 °C
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