Project Description

Doped Fiber Pump and Signal Combiner (N+1)x1

Doped Fiber Pump Combiner, also call active pump combiner, is build by coupling pump fiber power directly into doped fiber (say Yb-doped, or Er/Yb doped ect), the signal input fiber is passive fiber, and the splice point is put inside combiner. Normally customer splices doped fiber with combiner output passive fiber, which will cause backward scattering. Active combiner makes customer no need to splice again outside combiner and will get very good isolation between backward light and pump lasers.

The structure has 2 advantages compare with normal combiner:

1) Customer only need splice one time with doped fiber at combiner signal side.

2) The coupling region is behind splice point, the isolation (backward signal to pump) is much lower than normal passive combiner, so that protect pump LD burning.

Features Applications
·         High Power Transfer Efficiency

·         Low signal insertion loss

·         Custom Configurations Available

 ·         Fiber Laser

·         Fiber Amplifiers

·         Fiber instrument

General Configuration for Doped Fiber Pump Combiner(2+1)x1

Type Pump fiber Input signal Output fiber(active) Max.Signal IL Pump Effi. Max.Power Handling
(2+1)x1 105/125 0.15 or 0.22 6/125 SC or DC 6/125 DC 0.5dB 90% 50W/leg
(2+1)x1 105/125 0.15 or 0.22 8/125 SC or DC 8/125 DC 0.5dB 90% 50W/leg
(2+1)x1 105/125 0.15 or 0.22 10/125 SC or DC 10/125 DC 0.5dB 90% 50W/leg
(2+1)x1 105/125 0.15 or 0.22 12/125 SC or DC 12/125DC 0.5dB 90% 50W/leg
(2+1)x1 105/125 0.15 or 0.22 20/125 SC or DC 20/125 DC 0.5dB 90% 50W/leg
(2+1)x1 105/125 0.15 or 0.22 25/250 SC or DC 25/250 DC 0.5dB 93% 50W/leg
(2+1)x1 105/125 0.15 or 0.22 30/250 SC or DC 30/250 DC 0.5dB 93% 50W/leg

Remark:

  • Other configuration and higher power handling can be customized.PM fiber also can be customized.
  • All combiners default with bare fiber, 0.8m length of pigtail, please contacts us for special request.
  • Output fibers are doped double clad fiber.

Package Information

Package Type P1 P2 P3 P4
Dimensions (mm) Ф4.0×60 65x12x7 80x12x8 100x15x10

*Due to ongoing design improvements, the package size is subject to change. According to the different configuration, power handling, and fiber core diameter, we will choose the appropriate package size. Please contact DK Photonics for confirmation.

*Device package must be mounted onto heat sink (active cooling is suggested) with thermal paste for high power.

Order information P/N: DFPSC (DFPMPSC)-A-B-C-D-E-F-G

When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better.

A B C D E F G
Port Signal Wavelength Power per Multimode Input Input Pump Fiber Type Input signal Fiber Type Output Fiber Type Fiber length
21: (2+1)X1

61: (6+1)X1

 03:1030nm

64:1064nm

55:1550nm

20:2000nm

 05:5W

10:10W

25:25W

50:50W

XX: Other

 XXX(fiber name) XXX(fiber name) XXX(fiber name) 20:2.0m

30:3.0m

40:4.0m

Part Number Example: DFPSC-21-03-30-105/125/022-15/130/008/046-15/130/008/046-10

Description: (2 + 1) x 1 Doped Fiber Pump and Signal Combiner,1030nm signal wavelgnth,30W per pump, 105/125µm, 0.22NA input pump fiber, 15/130µm, 0.08/046NA input signal fiber, doped 15/130µm, 0.08/046NA output fiber, 1.0m fiber length.

Ordering Information for Custom Parts

If you need to customize other specifications, please provide detailed description for your requirement.

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