The 975nm MM Pump Laser Protector, also called Pump Protection Filter, is a passive component which allows maximum transmission from a discrete fibre-coupled pump laser diode and blocks par asitic signals around the centre wavelength of the laser from being reflected back into the laser. Depending on the fiber type of laser diode, we have SM Pump Laser Protector, PM Pump Laser Protector, MM Pump Laser Protector. They can work for 1.0μm fiber laser and 1.5μm fiber laser.
If you do not see a standard Pump Laser Protector that meets your needs, we welcome the opportunity to review your desired specification and quote a custom isolator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.
Performance Specifications
|
Parameters
|
Unit
|
Values
|
|
Pump Laser Center Wavelength
|
nm
|
975
|
|
Operating Wavelength Range
|
nm
|
± 15
|
|
Typ. Pump Insertion Loss
|
dB
|
0.4
|
|
Max. Pump Insertion Loss (-5~70℃)
|
dB
|
0.6
|
|
Max. PDL
|
dB
|
0.2
|
|
Operating Signal Wavelength Range
|
mm
|
1020~1120(1.0μm) or 1530~1570(1.5μm)
|
|
Min. Backward Signal Isolation
|
dB
|
30
|
|
Max. Optical Power
|
CW
|
0.5, 5, 10, 20, 30 ,50 or specify
|
|
Min. Return Loss
|
dB
|
30
|
|
Fiber Type
|
-
|
105/125, NA0.22 Multimode Fiber or Specify
|
|
Operation Temperature
|
℃
|
-5 ~ +65
|
|
Storage Temperature Range
|
℃
|
-40 ~ +85
|
- 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 connector added.
- The pass optical power is 2 W only for connector added.
Package Dimension
Dimension for ≤10W:
Dimension for >10W:
*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: MMPLP-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. For high power applications, we recommend direct splicing without connectors.
| ① |
② |
③ |
④ |
⑤ |
⑥ |
⑦ |
| Pump Laser Wavelength |
Optical Power |
Backward Signal Wavelength |
Fiber Type |
Pigtail Diameter |
Fiber Length |
Connector |
|
975:975nm
XX: Other
|
01:1W
10:10W
20:20W
30:30W
50:50W
XX: Other
|
10:1064nm
15:1550nm
|
XX/XX/XX(core/clad/ NA) |
25:250μm Bare Fiber
90:900μm Loose Tube
XX: Others
|
08:0.8m
10:1.0m
XX: Other
|
00: None
XX: Others
|
Part Number Example: MMPLP-975-20-10-105/125/22-25-08-00
Description: 975nm Multimode Pump Laser Protector, - 20W, backward signal wavelength 1064nm, 105/125um, NA0.22 fiber, with bare fiber & 0.8m length, no connector.
Ordering Information for Custom Parts:
If you need to customize other specifications, please provide detailed description for your requirement.
DownloadDatasheet in PDF