Optical Passive Components
Optical passive components are the workhorses of every fiber network — they split, combine, filter, monitor, and isolate optical signals without consuming power. Optiunik supplies a complete portfolio of passive devices manufactured in our own facility and verified one-by-one before shipping. Our catalog covers PLC splitters in 1×N and 2×N variants for PON and FTTH access deployments, fused biconical-tapered (FBT) couplers with custom split ratios for monitor and tap applications, and the full WDM family — CWDM in 1U rackmount / ABS module / LGX cassette / standalone device form factors, compact CCWDM modules for ultra-low-loss free-space-optic deployments, DWDM mux/demux on the 100 GHz and 200 GHz ITU grids, FWDM triplexers for 1310 / 1490 / 1550 nm combining, and polarization-maintaining (PM) devices for coherent and quantum-grade optical links. Every device is tested for insertion loss, return loss, polarization-dependent loss, and channel isolation per Telcordia GR-1209 and GR-1221, ships with the matching test report, and is available with OEM-coded labels and private-label packaging on request.
14 products
3-Channel 1310/1550 nm FWDM Filtered WDM in LGX Box
Three-port filter-based WDM for combining/separating 1310 nm and 1550 nm signals — used in PON OLT/ONT links, CATV overlay, and RFoG.
100/200 GHz DWDM Module (4/8/16 Channel)
ABS-housed DWDM mux/demux modules at 100 GHz or 200 GHz spacing, optimized for metro and access network 10G/100G transport.
100/200 GHz 1×2 DWDM Device (3 Ports)
Single-channel DWDM filter device on the ITU grid — insert or drop one DWDM wavelength with minimal insertion loss.
100/200 GHz DWDM Module in 1U Rackmount
1U rackmount DWDM mux/demux with 100 GHz or 200 GHz channel spacing — typically 8, 16, 32, or 40 channels on the ITU C-band grid.
12-Channel Compact CWDM Mux/Demux Module
Free-space-optics 12-channel CCWDM offering ultra-low insertion loss and a fraction of the footprint of fiber-cascaded CWDMs.
1×2 CWDM Device (3 Ports)
3-port 1×2 CWDM filter device with one common port and two channel ports, used for inserting / dropping a single CWDM wavelength.
CWDM Mux/Demux in LGX Box (4/8/16/18-Channel)
LGX-format CWDM mux/demux suitable for ODF cassette slots and patch panels, 4 to 18 channels with pigtail or adapter front interfaces.
CWDM Mux/Demux Module (ABS, 4/8/16/18-Channel)
ABS-housed CWDM mux/demux modules for compact deployments — pigtailed LC/SC connectors, 4 to 18 channels per module.
CWDM Mux/Demux in 1U Rackmount (4/8/16/18-Channel)
19-inch 1U rackmount CWDM mux/demux supporting 4, 8, 16, or 18 channels with LC/UPC duplex front interfaces and dual-fiber expansion ports.
FBT Coupler
Fused biconical tapered couplers in 1×2 / 2×2 with custom split ratios (50/50, 30/70, 5/95, etc.) for tap, monitor, and combine applications.
PLC Splitter
1×N and 2×N PLC splitters with low insertion loss and high uniformity — bare fiber, ABS box, LGX, and mini steel-tube packaging.
Polarization Maintaining Isolator 1310/1550nm
In-line PM optical isolator with > 30 dB isolation for protecting PM laser sources from back-reflection.
Polarization Maintaining Dense WDM
Polarization-maintaining DWDM filter coupler for 1310/1550 nm and ITU-grid channels, used in coherent transceivers and PM sensor links.
Polarization Maintaining PLC Splitter
PM PLC splitter preserving polarization state across 1×2 / 1×4 / 1×8 / 2×8 split ratios for coherent and quantum-grade optical paths.