NXN Fused Coupler
For splitting and combining two ports or more, operating at 980, 1310, 1480, 1550, or 1585 nm, with other wavelengths available by request.
Full Product Description- Wavelength:
- 980 nm, 1310 nm, 1480 nm, 1550 nm, 1585 nm
Product description
Manufactured using a single low loss fusion and available in configurations of 1X3, 3X3, 1X4, or 4X4, these couplers offer low loss optical splitting in a single cylindrical package.
Single fuse couplers, by virtue of their phase properties, are also ideal for use in fiber-optic gyroscopes (FOGs), and are available with ultra-compact housings and ø80 μm cladding fiber pigtails, directly compatible with FOG sensing loops. The low loss offered by our couplers ensures optimal FOG sensitivity. These FOG-optimized single fuse couplers are available on a custom basis. Please contact us for a specification tailored to your requirements.
Key features
- Low loss
- Custom designs for Gyro applications
Specifications
| Name | Value |
|---|---|
| Wavelength | 980 nm, 1310 nm, 1480 nm, 1550 nm, 1585 nm |
| Return loss/directivity | 50 dB |
| Pigtail tensile load | 5 N |
| Optical power handling | 4 W |
| Operating temperature | -40° C – +75° C ³ |
| Storage temperature | -40° C – +85° C |
| Fiber type | Corning SMF-28 ⁴ or 980 nm fiber ⁵ |
Optical Specifications ¹
| Port configuration | 1x3 | 3x3 | 1x4 | 4x4 | |
| Coupling ratio | 33/33/33% | 33/33/33% | 25/25/25/25% | 25/25/25/25% | |
| Maximum insertion loss ² | Grade A | 5.7 dB | 6.2 dB | 7.0 dB | 8.0 dB |
| Grade B | 6.2 dB | 6.5 dB | 7.8 dB | 8.6 dB |
¹ All specifications are preliminary.
² Insertion loss (not including PDL, TDL or any connector losses).
³ For connectorized component, operating temperature range is –5 – +75 o C.
⁴ Custom designs using ø80 µm fiber for Gyro applications are available. Please contact the sales office for further information.
⁵ For 980 nm component.
| Housing Code | Description | Dimensions (mm) | Pigtail |
|---|---|---|---|
| 3 | Regular | 1x3, 3x3 3.0 (∅) x 55 (L) | Primary-coated fiber |
| 3 | Regular | 1x4, 4x4 3.0 (∅) x 71 (L) | Primary-coated fiber |
Order code
Guidance on how to create an order code is available in Downloads below.