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Parameters

Condition

Specs

Units

Min

Typ

Max

Number of Channels

2*40

Number Channel Spacing

50GHz

50

GHz

Cha. Center Wavelength

ITU frequency.

C -band

nm

Clear Channel Passband

±6.25

GHz

Wavelength Stability

Maximum range of the wavelength error  of all channels and temperatures in average polarization.

±0.05

nm

-1 dB Channel Bandwidth

Clear channel bandwidth defined by passband shape. For each channel

0.20

nm

-3 dB Channel Bandwidth

Clear channel bandwidth defined by passband shape. For each channel

0.30

nm

Optical Insertion Loss at ITU grid

Defined as the minimum transmission at ITU wavelength for all channels. For each channel, at all temperatures and polarizations.

6.0

7.0

dB

Adjacent Channel Isolation

Insertion loss difference from the mean transmission at the ITU grid wavelength to the

highest power, all polarizations, within the ITU band of the adjacent channels.

25

dB

Non-Adjacent, Channel Isolation

Insertion loss difference from the mean transmission at the ITU grid wavelength to the

highest power, all polarizations, within the ITU band of the nonadjacent channels.

29

dB

Total Channel Isolation

Total cumulative insertion loss difference from the mean transmission at the ITU grid wavelength to the highest power, all polarizations, within the ITU band of all other channels, including adjacent channels.

22

dB

Insertion Loss Uniformity

Maximum range of the insertion loss variation within ITU across all channels, polarizations and temperatures.

2.0

dB

Directivity(Mux Only)

Ratio of reflected power out of any channel(other than channel n)to power in from the input channel n

40

dB

Insertion Loss Ripple

Any maxima and any minima of optical loss across ITU band, excluding boundary points, for each channel at each port

1.5

dB

Optical Return loss

Input & output ports

40

dB

PDL/Polarization Dependent Loss in Clear Channel Band

Worst-case value measured in ITU band

0.3

0.5

dB

Polarization Mode Dispersion

0.5

ps