Professional Grade WDM Filter FWDM Filter ( Filter Wavelength
Division Multiplexer) for Efficient Signal Separation
FTTX Filter WDM module extensively used in EDFA, Raman amplifiers,
WDM networks, and fiber optics instrumentation is based on Thin
Film Filter (TFF) technology. The device combines or separates
light at different wavelengths in a wide wavelength range. It can
expand the capacity of a single fiber to achieve bi-directional
communication so that widely used in optical network upgrades and
expansion, or introduce new comprehensive business, etc.
HJY provides filter-based wavelength division multiplexing (WDM)
filter devices that are customized to the particular wavelength
bands for your special applications. As you might know, the GEPON
system itself works on 1310/1490, so the CATV signal here is
delivered over the same fiber using 1550nm, and FWDM is a place
where all this get's "mixed".
FWDM covers the following wavelength windows commonly used in
optical fiber systems:
850/1310nm FWDM - for multi-mode fiber communication, CATV and
testing instrumentation.
1310/1550nm FWDM - for WDM or DWDM optical communications.
1480/1550nm FWDM - for high-power DWDM optical amplifier and EDFA.
1510/1550nm FWDM - for DWDM multi-channel optical networks.
980/1550nm FWDM - for high performance DWDM optical amplifier and
EDFA amplifier.
1310/1490/1550nm FWDM - for PON, FTTX and test instrument.
1310/1550/1625nm FWDM - for testing active fibers in service.
1310/1490/1550/1625nm FWDM - for combining or separating 1625nm
channel with three triplex wavelength 1310nm, 1490nm and 1550nm so
that 1625nm channel can be added into the existing triplex FTTH
system
Dimensions (mm)
Product Parameters
| Wavelength | TX1550
RX1310/1490nm | Technology | TFF (Thin Film Filter) |
| Passband | 1540~1565nm | Reflection | 1260~1500&1590~1650 |
| Passband ripple | ≤0.30dB | IL @ Passband | ≤0.60dB |
| Reflection band ripple | ≤0.20dB | IL @Reflection | ≤0.40dB |
| Transmission isolation (adj channel) | ≥30dB | Transmission isolation (non-adj channel) | ≥50dB |
| Reflection isolation | ≥15dB | Polarization dependent loss | ≤0.1dB |
| Polarization mode dispersion | ≤0.2ps | Thermal Stability | ≤0.005N |
| Directivity | ≥50dB | Return loss | ≥45dB |
| Optical power handling | ≤500mW | Temperature | Operating -40 to 85°C
Storage -40 to 85°C |
| Fiber type | SMF-28e | Package dimension | Steel ∮5.5 x L34mm
ABS 90*20*10nm |
Application Diagram
The Filter WDM system uses a Multiplexer at the transmitter to
combine several wavelengths together, each one carry different
signal with bite-rate up to 10G and a demultiplexer at the receiver
to split them apart. Due to its low insertion loss, low
polarization dependence and high isolation, the filter is widely
used in CATV system, FTTx and PON system, Fiber Communication, Test
Instrument and etc.
Ordering Information
HJY-FW | Package | Connector Type | U/A | Wavelength | Fiber Type | Fiber Length | Ports Type |
FW | S: Steel B: ABS BOX Others | 0: No connector 1: LC 2: SC 3: FC 4: Others | U: UPC A: APC | T: Transmission wavelength range (nm) R: Transmission wavelength range (nm) | 9: 0.9mm
20:2.0mm
30:2.0mm Others | 005: 0.5+/-0.1m 01: 1.0+/-0.1m others | Com Reflect
Pass |
Note.
1) All the specifications are based on the devices without
connectors, and guaranteed over wavelength, polarization and
temperature.
2)PMD and chromatic dispersion values are guaranteed by design.
3) Specifications are subject to change without notice
