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.
Specification
|
Parameter |
Unit |
Value |
|
Pass Channel Wavelength |
nm |
1520 ~ 1600 (or 1250 ~ 1350) |
|
Reflect Channel Wavelength |
nm |
1250 ~ 1350 (or 1520 ~ 1600) |
|
Isolation@ Pass channel |
nm |
≥ 30 |
|
Isolation@ Reflect channel |
GHz |
≥ 12 |
|
Insertion loss@ Pass channel |
dB |
≤0.6 |
|
Insertion Loss@ Reflect channel |
dB |
≤0.4 |
|
Insertion Loss Variation |
dB |
≤0.3 |
|
Directivity |
dB |
≥60 |
|
Return loss |
dB |
≥50 |
|
PDL |
dB |
≤0.1 |
|
Polarization Mode Dispersion |
ps |
≤0.1 |
|
Insertion loss Temperture Sensitivity |
dB/℃ |
≤0.003 |
|
Power handling |
mW |
300 |
|
Operating temperature |
℃ |
0 ~ +70 |
|
Storage temperature |
℃ |
-40 ~ +85 |
|
Package dimension |
mm |
5.5x34 |
Other specification can be made on customer request.
Fused Coupler
