Description
1450/1550/1660nm Raman Multimode WDM
1450/1550/1660nm Raman Multimode WDM (Wavelength Division Mulitplexer) is a fiber component built with thin-film filter technology, it can be used to separate or combine 1450nm, 1550nm and 1660nm wavelength signal, it’s widely used Distributing Temperature Sensor System, the MM fiber can be 50/125 or 62.5/125 fiber.
| Application: | Features: | ![]() |
| DTS System | Epoxy Free | |
| Fiber Optic Sensor | High Isolation | |
| Raman Amplifier | Low Insertion Loss | |
| Lab And Research | Optical Path Reversibility |
Specification:
| Parameter | Symbol | Value |
Unit |
| Operating Wavelength | λ | 1450, 1550, 1660 | nm |
| Bandwidth | BW | 1445~1475, 1535~1565, 1645~1680 | nm |
| Max. Insertion Loss | IL | 1.2 | dB |
| Min. Isolation | Iso | 50 | dB |
| Max. Flatness | 0.5 | dB | |
| Max. Thermal Stability | 0.005 | dB | |
| Max. Wavelength Stability | 0.002 | dB | |
| Max. Polarization Dependent Loss | PDL | 0.1 | dB |
| Min. Directivity | 35 | dB | |
| Min. Return Loss | RL | 35 | dB |
| Max. Optical Power (CW) | P | 300 | mW |
| Max. Tensil Load | 5 | N | |
| Fiber Type | 50/125 or 62.5/125 fiber | – | |
| Operating Temperature | T | -5~70 | ℃ |
| Storage Temperature | T | -40~85 | ℃ |
| Package Dimension | Φ5.5×L35 | mm |
| Notice: Above specifications are tested at center wavelength without connector in room temperature @23℃. |
| For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. |
Drawing:

Ordering Information (Part Number):
| RMWDM-WWW-FF-J-LL-CC |
||||
| WWW | FF | J | LL | CC |
| Wavelength | Fiber Type On Reflect Port | Fiber Jacket | Fiber Length | Connector |
| 456 – 1450, 1550, 1660nm | M5 – 50/125 MM Fiber | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| M6 – 62.5/125 MM Fiber | 9 – 900um Loose Tube | 08 – 0.8m | FA – FC/APC | |
| SS – Specify | 2 – 2mm Loose Tube | 10 – 1.0m | FU – FC/UPC | |
| 3 – 3mm Loose Tube | 15– 1.5m | SA – SC/APC | ||
| 20 – 2.0m | SU – SC/UPC | |||
| LA – LC/APC | ||||
| LU – LC/UPC | ||||
| SS – Specify | ||||
Example: RMWDM-456-M5-9-10-FU is the PN for 1450/1550/1660nm Raman Multimode WDM, 1.0m 50/125 MM fiber, FC/UPC




