1310/1550nm Multimode Optical Isolator
Multimode optical isolators can be used in optical communication and sensor systems that use 62.5/125 micron or 50/125 micron multimode fiber. This isolator is specially designed to work at 1310nm or 1550nm wavelength.
| Features | Applications |
| · Low insertion loss
· High isolation · Optical path epoxy free · Low PDL & PMD · High Reliability · Excellent Temperature Stability |
· DWDM/CWDM
· EDFA · Raman Amplifiers · Fiber Lasers · Transmitters |
Performance Specifications
| Parameter | Unit | Single Stage | Dual Stage |
| Operating Wavelength | nm | 1310 or 1550 | |
| Band Width | nm | ±10 | ±15 |
| Minimum Isolation at 23℃ | dB | 25 | 35 |
| Maximum Insertion Loss at 23℃ | dB | 0.8 | 0.9 |
| Return Loss (In/Out) | dB | >35/30 | |
| PDL | dB | < 0.2 | |
| Maximum Power Handling(CW) | W | 0.3, 1, 3, 5, 10 | |
| Max. Tensile Load | N | 5 | |
| Fiber Type | – | MM 62.5/125,50/125 fiber, or other | |
| Operating Temperature | °C | -20~+70 | |
| Storage Temperature | °C | -40 ~+85 | |
| Dimensions | mm | Φ5.5xL35 | |
- Above specification are for device without connector, and may change without notice.
- IL is 0.3 dB higher and RL is 5 dB lower for each connector added.
- The pass optical power is 2 W only for connector added.
- Tested parameters may be inconsistent with different multi-mode light sources used.
Package Dimension
*Due to ongoing design improvements, the package size is subject to change. For high power applications, we will use heat sink package, contact DK Photonics for details. Please contact DK Photonics for confirmation.
Order information P/N: MMISO-①-②-③-④-⑤-⑥-⑦
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
| ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ |
| Type | Wavelength | Power Handling | Fiber Type | Pigtails Diameter | Fiber Length | Connector |
| IS: Single stage
IU: Dual stage |
13:1310nm
14:1480nm 15:1550nm LB:L band |
L:<0.3W 1:1W 3:3W 5:5W | 50:50/125um
62:62.5/125um XX: Others |
25:250μm bare fiber
90:900μm Loose Fiber XX: Others |
05:0.5m
10:1.0m 15:1.5m XX: Others |
00: None
FP: FC/PC FA: FC/APC SA: SC/APC LA: LC/APC XX: Others |
Part Number Example: MMISO-IS-15-L-50-25-10-00
Description: 1550nm multimode single stage fiber optic isolator, 0.3W power handling, 50/125um MM fiber, 250um bare fiber, 1.0m length fiber pigtails, no connectors at all ports.
Ordering Information for Custom Parts
If you need to customize other specifications, please provide detailed description for your requirement.
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