Description
1310nm Ultra Mini Polarization Insensitive Optical Isolator
1310nm Ultra Mini Polarization Insensitive Optical Isolator is a fiber passive component built with singlemode fiber, it allows light signal to be delivered in one forward direction and avoid the back reflection light, it’s widely used in some highly intergrated compact systems like fiber amplifier, fiber optic sensor system to protect the light source and lower down the optical signal noise.
| Application: | Features: | ![]() |
| Fiber Amplifier | Compact Package | |
| Fiber Optic Sensor | High Isolation | |
| Fiber Laser | Low Insertion Loss | |
| Lab & Research | High Reliability |
Specification:
| Parameter | Symbol | Value |
Unit |
| Center Wavelength | λ | 1310 |
nm |
| Bandwidth | BW | ±15 |
nm |
| Stage | Single Stage | – | |
| Typ. Insertion Loss | IL | 0.8 | dB |
| Max. Insertion Loss | IL | 1.2 | dB |
| Typ. Peak Isolation | ISO | 35 | dB |
| Min. Isolation | ISO | 23 | dB |
| Max. Polarization Dependent Loss | PDL | 0.1 | dB |
| Max. Polarization Mode Dispersion | PMD | 0.25 | ps |
| Min. Return Loss | RL | 50 | dB |
| Max. Optical Power (CW) | P | 500 | mW |
| Max. Tensil Load | 5 | N | |
| Fiber Type | SMF-28e fiber | – | |
| Operating Temperature | T | 0~60 | ℃ |
| Storage Temperature | T | -20~85 | ℃ |
| Package Dimension | Φ1.0×L22 | 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):
| UPIISO-WWWW-S-J-LL-CC |
||||
| WWWW | S | J | LL | CC |
| Wavelength | Stage | Fiber Jacket | Fiber Length | Connector |
| 1310 – 1310nm | S – Single Stage | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 1550 – 1550nm | 9 – 900um Loose Tube | 10 – 1.0m | FA – FC/APC | |
| SSSS – Specify | 15 – 1.5m | FU – FC/UPC | ||
| 20 – 2.0m | SA – SC/APC | |||
| SS – Specify | SU – SU/APC | |||
| LA – LC/APC | ||||
| LU – LC/UPC | ||||
| SS – Specify | ||||
Example: UPIISO-1310-S-9-10-FA is the PN for 1310nm Ultra Mini Polarization Insensitive Optical Isolator, Single Stage, 1.0m SM fiber, 900um loose tube, FC/APC connector

