Optical Wavelength Division Multiplexer (WDM)
Wavelength Division Multiplexer (WDM) for single-mode optical fiber has one or two input and output branches. They are built in fusion technology and designed to introduce low insertion loss and high isolation. The usual mechanical presentation options are plastic boxes or standard commercial cassettes. The connection extremes can be supplied terminated with customized connectors both in angled polishing with high return loss (FC/APC,SC/APC) and convex polishing (FC/ PC, SC/PC, ST/PC) versions.
Each WDM multiplexer includes its optical insertion loss and isolation measures of each branch. WDMs are available in several fiber sizes and types (250µm fiber, loose tube, 900µm buffer or Ø 3mm cable).
Versions
WDMs are available in several versions, differing among them the wavelength of the different ports or the isolation grade . The standard versions are:
- HI Version: with ultra high isolation. Available in all connectorization options. Wavelengths specified between: 1310/1550/1650 nm.
- STD Version: : Standard option. Available in all connectorization options. Wavelengths specified between: 1310/1550/1650 nm.
- PM Version: : Designed to divide and/or combine different optical wavelengths in optical amplifiers. Available in all connectorization options. Available wavelengths are 980/1550nm and 1480/1550 nm.
Specifications
Standard WDM configuration | 1x2 (2x2) | ||
Operating wavelength (nm): | 1.310 nm - 1.550 nm | ||
Insertion Loss (dB): | I < 0.3 dB | II < 0.7 dB | III < 1 dB |
Isolation (dB) | I < 15 dB | II < 30 dB | III < 40 dB |
Polarization Sensitivity (%) | +- 1 % | ||
Directivity(dB) | > 55 dB | ||
Operating temperature range:de operación | -20 ºC to + 80 ºC | ||
Stability of the Insertion Loss in the range -40º to +80ºC (dB): | <=0.005 dB/ºC | ||
Cable type: | Tight buffered of 250 and 900 µm, loose tube or single fiber cable (under request) | ||
Cable length: | custom length | ||
Connector type: | FC/PC, FC/APC, SC/PC, SC/APC, ST | ||