DK Photonics uses unique fusing technique and PM fiber to build the 980~1080nm High power PM fiber Fused Coupler. The coupling ratio could be selected according to customer’s request. It features low excess loss and high polarization extinction ratio. It’s used extensively in fiber amplifier power control, and in transmission equipment for performance monitoring and feedback control. High power PM fiber Fused Coupler is widely used for High Power Fiber Laser and High-Power Fiber amplifier.
The High-power PM fiber Fused Coupler can be used to split high power linearly polarized light into two paths without perturbing the line are state of polarization (SOP). It can be operating on both Fast and Slow Axis.
If you do not see a standard PM Fused Coupler that meets your needs, we welcome the opportunity to review your desired specification and quote a custom PM fused Coupler. Requests for custom fiber pigtails, different wavelengths, tap Ratio and handling power of operation or other specific needs will be readily addressed.
Performance Specifications
|
Parameter
|
Unit
|
Values
|
|
Grade
|
-
|
P
|
|
Configuration
|
-
|
1x2 or 2x2
|
|
Operating wavelength
|
nm
|
980, 1030, 1053,1064, 1080, others on request
|
|
Operating bandwidth
|
nm
|
± 15
|
|
Coupling Ratio
|
%
|
1%~50%
|
|
Typical excess loss
|
dB
|
0.2
|
|
Max. excess loss
|
dB
|
0.4
|
|
Max. Insertion Loss
|
dB
|
IL related to CR
|
|
Min. Extinction Ratio
|
dB
|
18
|
|
Return Loss
|
dB
|
≥50
|
|
Directivity
|
dB
|
≥55
|
|
Max. Optical Power (CW)
|
W
|
10,20,30,50
|
|
Fiber Type
|
-
|
PM980, PM1060L, PLMA-GDF-10/125-M
|
|
Operating Temperature
|
℃
|
-20~+75
|
|
Storage Temperature
|
℃
|
-40~+85
|
|
Package Dimension
|
mm
|
60x5x5(10~20W), 60x12X8(30~50W)
|
- Above specifications are for device without connector, and the PM fused coupler is both axis working, no axis can be blocked; default test extinction ratio is on the slow axis. All parameters are tested at room temperature at central wavelength only.
- ER data listed in the table are for the ports with coupling ratio greater than 10%. It will be 2 dB lower for a tap port with coupling ratio between 5-10%. For <5% tap port, ER is not considered if there is no requirement.
- 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 Dimension
For10~20W:
For >20W:
*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: HPPMFBTC①-②-③-④-⑤-⑥-⑦-⑧-⑨-⑩
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 bare fiber pigtail. For high power applications, we recommend direct splicing without connectors.
| ① |
② |
③ |
④ |
⑤ |
⑥ |
⑦ |
⑧ |
⑩ |
| Grade |
Port |
Wavelength |
Power Handling |
Coupling Ratio(%) |
Fiber Type |
Pigtails
Diameter
|
Fiber Length |
Connector |
| P: P Grade |
102:1x2
202:2x2
|
98:980nm
30:1030nm
53:1053nm
64:1064nm
80:1080nm
XX: Others
|
10:10W
20:20W
30:30W
50:50W
|
50:50/50
40:40/60
30:30/70
20:20/80
10:10/90
05:5/95
02:2/98
01:1/99
XX: Others
|
P98:PM980 fiber
XXX: fiber code
|
25:250μm
90:900μm
XX: Others
|
05:0.5m
10:1.0m
15:1.5m
XX: Others
|
00: None
FP: FC/PC
FA: FC/APC
XX: Others
|
Part Number Example: HPPMFBTC-P-102-64-30-50-P10/125/08D-25-10-00
Description: 1064nm high power PM fiber fused coupler, P grade,1x2, 30w handling power,50:50, PLMA-GDF-10/125-M fiber, with 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.
DownloadDatasheet in PDF