PM Filter WDM 1550/980nm
Filter Wavelength Division Multiplexing (FWDM) is a device for optical wavelength management. It utilizes proven ultra-low-loss thin-film filter (TFF) technology and proprietary design of non-flux metal bonding micro optics packaging. It features small size, high reliability, high extensibility, high channel isolation, epoxy free optical path, simultaneous transmission of multi-wavelength. FWDM has gained prevalence in multi-wavelength digital transport architectures because it enables the use of very low cost uncooled distributed feedback (DFB) laser transmitters. All products meet GR-1209-CORE, GR-1221-CORE requirements. It’s for application such as System Monitoring, Transmitters and Fiber lasers, WDM system, Fiber optical amplifier etc.
Specification
|
Parameter |
Unit |
Value |
|
Pass Band |
Wavelength Range |
nm |
1520~1580 |
|
Max. Insertion Loss |
dB |
0.7 |
|
Typ. Insertion Loss |
dB |
0.5 |
|
Min. Isolation |
dB |
25 |
|
Typ. Isolation |
dB |
30 |
|
Reflection Band |
Wavelength Range |
nm |
960~990 |
|
Max. Insertion Loss |
dB |
0.5 |
|
Typ. Insertion Loss |
dB |
0.3 |
|
Min. Isolation |
dB |
12 |
|
|
Typ. Isolation |
dB |
15 |
|
Min. Return Loss |
dB |
50 |
|
Min. Directivity(over 960~990nm) |
dB |
60 |
|
Min. Extinction Ratio |
dB |
20 |
|
Typ. Extinction Ratio |
dB |
22 |
|
Thermal Stability |
dB/℃ |
≤0.005 |
|
Max. Optical Power (CW) |
mW |
1000 |
|
Max. Tensile Load |
N |
5 |
|
Fiber Type |
|
PM1550 Panda Fiber for Port 1/3, PM980 Panda Fiber for Port2 |
|
Operating Temperature |
℃ |
-5 to +70 |
|
Storage Temperature |
℃ |
-40 to +85 |
Above specifications are for device without connector.
Device with connector, IL will be 0.3dB higher, ER will be 2dB lower and RL will be 5dB lower.
The PM fiber and the connector key are aligned to the slow axis.
The cutoff wavelength of PM1550 Panda Fiber may be larger than 1450nm.
Fused Coupler
