coarse wavelength division multiplexer (cwdm) utilizes thin film coating technology and proprietary design of non-flux metal bonding micro optics packaging. it provide slow insertion loss, high channel isolation, wide pass band, low temperature sensitivity and epoxy free optical path
performance specifications
parameter |
1 channel |
2 channel |
add |
drop |
add |
drop |
operating wavelength (nm) |
1471, 1491 or 1470, 1490 etc. |
center wavelength accuracy (nm) |
¡À 0.5 |
channel spacing (ghz) |
20nm |
channel passband (@-0.5db bandwidth) min.(nm) |
¡Ý13 |
insertion loss (db) |
add/drop ch. |
¡Ü0.6 |
¡Ü0.9 |
express ch. |
¡Ü0.6 |
¡Ü1.2 |
channel ripple (db) |
¡Ü0.3 |
¡Ü0.3 |
isolation @add/drop channel(db) |
adjacent |
n/a |
>30 |
n/a |
>30 |
non-adjacent |
n/a |
>40 |
n/a |
>40 |
express channel isolation (db) |
¨R25 |
insertion loss temperature sensitivity (db/¡ãc ) |
<0.005 |
wavelength temperature shifting (nm/ ¡ãc ) |
<0.002 |
polarization dependent loss (db) |
<0.10 |
polarization mode dispersion (ps) |
<0.1 |
directivity (db) |
>50 |
return loss (db) |
>45 |
maximum power handling (mw) |
300 |
operating temperature (¡ãc) |
-20 ~+85 |
storage temperature (¡ãc) |
-40 ~+85 |
package dimension (mm) |
f l80 x w50 x h6 |
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specifications may change without notice
ordering information
cwdm |
configuration |
1 channel |
fiber type |
fiber length |
connector
in/out |
|
1=1 ch add/drop 2=2 ch add/drop
|
471=1471nm 491=1491nm
|
1=250um bare fiber 2=900um loose tube fiber |
1=1 meter 2=2 meter |
0=none 1=fc/apc 2=fc/pc 3=sc/apc 4=sc/pc 5=st 6=lc |