AT&T 1480 Manuel d'utilisateur télécharger pdf (Page 5)

AT&T Labs-Research

Wavelength Accuracy Requirements

!

ITU-T 983.3 standard temp requirements.

"

OLT: 5 to 40

o

C

"

Indoor ONU: -5 to 45

o

C

"

Outdoor ONU: -45 to 45

o

C

!

DFB laser accuracy

"

temp coefficient: 0.08nm/

o

C

⇒ 7.2nm over 90

o

C for uncooled DFB

!

Athermal thin film CWDM

"

temp coefficient: 2pm/

o

C ⇒ 1.8nm over 90

o

C

!

Use 10nm band with 20nm separation

"

15 available bands between 1300nm and 1600nm

1 2 3 4 5 6 7 8 9 10

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