Description
940nm 1×2 2×2 SM Fiber Filter Coupler
940nm 1×2 2×2 SM Filter Coupler is built with thin-film filter technology. optical signal power can be splitted into two parts with even or various coupling ratio by the Filter Coupler, it’s widely applied in fiber optic transmission and fiber optic sensor field, the high power type is available upon request.
| Application: | Features: |  |
| Optical Signal Transmission | Low Excess Loss | |
| Fiber Optic Sensor | High Return Loss | |
| Fiber Laser | Low Insertion Loss | |
| Optical Diffraction System | High Reliability |
Specification:
| Parameter | Symbol | Value |
Unit | |
| Center Wavelength | λ | 940 |
nm | |
| Bandwidth | BW | ±20 |
nm | |
| Configuration | 1×2 | 2×2 | – | |
| Max. Excess Loss | EL | 1.0 | 1.2 | dB |
| Coupling Ratio Tolerance | 1± 0.2, 2± 0.4, 3± 0.7, 5± 1, 10, 20, 30, 50 | % | ||
| Max. Polarization Dependent Loss | PDL | 0.15 | dB | |
| Min. Directivity | 50 |
dB | ||
| Min. Return Loss | RL | 50 | dB | |
| Max. Optical Power (CW) | P | 500 or specify | mW | |
| Max. Tensil Load | 5 | N | ||
| Fiber Type | HI 1060 fiber | – | ||
| Operating Temperature | T | -40~70 | ℃ | |
| 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):
| SMFIC-WWW-PP-RR-J-LL-CC |
|||||
| WWW | PP | RR | J | LL | CC |
| Wavelength | Port | Coupling Ratio | Fiber Jacket | Fiber Length | Connector |
| 915 – 915nm | 12 – 1×2 | 01 – 1/99 | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 920 – 920nm | 22 – 2×2 | 02 – 2/98 | 9 – 900um Loose Tube | 10 – 1.0m | FA – FC/APC |
| 930 – 930nm | 03 – 3/97 | 2 – 2.0mm Loose Tube | 15 – 1.5m | FU – FC/UPC | |
| 940 – 940nm | 05 – 5/95 | 3 – 3.0mm Loose Tube | 20 – 2.0m | SA – SC/APC | |
| 950 – 950nm | 10 – 10/90 | SS – Specify | SU – SU/APC | ||
| 975 – 975nm | 20 – 20/80 | LA – LC/APC | |||
| 980 – 980nm | 30 – 30/70 | LU – LC/UPC | |||
| SSS – Specify | 40 – 40/60 | SS – Specify | |||
| 50 – 50/50 | |||||
| SS – Specify | |||||
Example: SMFIC-940-12-50-9-10-FA is the PN for 940nm SM Fiber Filter Coupler, 1×2, 50/50, 1.0m SM fiber, 900um loose tube, FC/APC connector