Parameter

Unit

SPEC

Note

Channel spacing

nm

20

Number of Services

ch

1/2/4

Operating Wavelength

nm

CWDM wavelengths

selected by the customer

Channel Wavelength Bandwidth

nm

ITU±6.5

Ripple in Passband

dB

≤ 0.4

Insertion Loss(COM or EXP to Add/Drop)

dB

≤  1

OADM1

Insertion Loss(COM to EXP)

dB

≤  1

Add/Drop for single side

Insertion Loss(COM or EXP to Add/Drop)

dB

≤  1

OADM1

Add/Drop for dual side

Insertion Loss(COM to EXP)

dB

≤  1.2

Insertion Loss(COM or EXP to Add/Drop)

dB

≤  1.2

OADM2

Add/Drop for single side

Insertion Loss(COM to EXP)

dB

≤  1.2

Insertion Loss(COM or EXP to Add/Drop)

dB

≤  1.2

OADM2

Add/Drop for dual side

Insertion Loss(COM to EXP)

dB

≤  2.2

Insertion Loss(COM or EXP to Add/Drop)

dB

≤  2.2

OADM4

Add/Drop for single side

Insertion Loss(COM to EXP)

dB

≤  2.2

Insertion Loss(COM or EXP to Add/Drop)

dB

≤  2.2

OADM4

Add/Drop for dual side

Insertion Loss(COM to EXP)

dB

≤ 3.5

Insertion Loss(COM or EXP to Add/Drop)

dB

≤ 3.5

OADM8

Add/Drop for single side

Insertion Loss(COM to EXP)

dB

≤ 3.5

Insertion Loss(COM or EXP to Add/Drop)

dB

≤ 3.5

OADM8

Add/Drop for dual side

Insertion Loss(COM to EXP)

dB

≤ 5.5

Isolation

Adjacent channel

dB

≥ 30

Non-adjacent channel

dB

≥  40

COM to EXP port except DWDM Channels Isolation

dB

≥  13

Return Loss (including connector)

dB

≥  45

Directivity

dB

≥ 50

Insertion Loss Temperature Stability

dB/°C

≤0.005

Temperature Wavelength Drift

nm/°C

≤0.005