PM VOA is an useful tool for the optical components and systems test. The 2.0μm Polarization Maintaining Mechanical Variable Optical Attenuator is designed and manufactured to reduce the output optical power, get the power suitable. It is with low insertion loss, high extinction ration, high return loss and low Adjustment Precision, The PM Attenuator is widely applied at fiber laser system.
| Features | Applications |
| · Wide attenuation range
· High precision · Low original loss · Compact size |
· Fiber communication on system test
· Optical passive component test · Fiber laser · Fiber amplifier · Optics lab use |
Performance Specifications
| Parameter | value | ||
| Grade | – | P | A |
| Center Wavelength | nm | 1940, 2000,2050 | |
| Operating Wavelength Range | nm | ±40 | |
| Max. Original loss | dB | 0.8 | 1.2 |
| Attenuation range | dB | 0.8 ~ 60 | 1.2 ~ 40 |
| Min. Return loss | dB | 50 | |
| Adjustment Precision | dB | 0.02 | |
| Min. Extinction ratio | dB | 20 | |
| Max. Power Handling | mW | 500 | |
| Max. Tensile Load | N | 5 | |
| Fiber type | – | PM1550 or PM1950 fiber | |
| Operating temperature | ℃ | 0 ~ +70 | |
| Operating temperature | ℃ | -40 ~ +85 | |
| Dimensions | mm | 26×18×8 | |
- Above specifications are for device without connector, and the PM VOA device is both axis working. All parameters are tested at room temperature.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. Power transmits through the connector less than 2W. The default connector key is aligned to slow axis.
- If there is pulse application, please be sure to inform us of pulse energy and peak power.
Package Dimensions
Order information P/N: PMVOA-①-②-③-④-⑤-⑥
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better.
| ① | ② | ③ | ④ | ⑤ | ⑥ |
| wavelength | Grade | Fiber Type | Pigtails Diameter | Fiber Length | Connector |
| 1940:1940nm
2000:2000nm 2050:2050nm XX: Others |
P:P Grade
A: A Grade |
P15: PM1550
P19: PM1950 XX: Others |
90:900μm
20:2.0mm XX: Others |
08:0.8m
10:1.0m XX: Others |
00: None
FP: FC/PC FA: FC/APC LA: LC/APC XX: Others |
Part Number Example #1: PMVOA-1940-P-P15-90-10-FA
Description: 1940nm Polarization Maintaining Mechanical Variable Optical Attenuator, P grade, 1.0m PM1550 Panda Fiber with 0.9mm OD loose tube, and FC/APC connectors at all ports.
Part Number Example #2: PMVOA-2000-P-P19-90-10-FA
Description: 2000nm Polarization Maintaining Mechanical Variable Optical Attenuator, P grade, 1.0m PM1950 Panda Fiber with 0.9mm OD loose tube, and FC/APC 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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