Filter Wavelength Division Multiplexer
Pass 1625nm Reflect1310/1490/1550
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 Channel Wavelength |
nm |
1625+/-10 |
|
Reflect Channel Wavelength |
nm |
1310+/-50，1490+/-10 and 1550+/-10 |
|
Isolation@ Pass channel |
dB |
≥ 30 |
|
Isolation@ Reflect channel |
dB |
≥ 15 |
|
Insertion loss@ Pass channel |
dB |
≤1.0 |
|
Insertion Loss@ Reflect channel |
dB |
≤1.0 |
|
Pass band Ripple |
dB |
≤0.3 |
|
Insertion Loss Temperature Sensitivity |
dB/°C |
<0.005 |
|
Directivity |
dB |
≥50 |
|
Return loss |
dB |
≥50 |
|
Polarization Dependent Loss |
dB |
≤0.1 |
|
Polarization Mode Dispersion |
ps |
≤0.1 |
|
Power handling |
mW |
300 |
|
Operating temperature |
℃ |
-10 ~ +70 |
|
Storage temperature |
℃ |
-40 ~ +85 |
|
Package dimension |
mm |
5.5 x L35 for bare fiber
5.5 x L38 for 900um loose tube |
Other specification can be made on customer request.
Fused Coupler
