High Quality Cladding Power Stripper

包层功率剥离器小

Connet high quality cladding power stripper has unique optical properties. This device can absorb the light transmitted in the inner cladding of the double-clad fiber. In double-clad fiber, all the light transmitted in the optical waveguide formed by the inner cladding with large numerical aperture (>/=0.46) and the fiber core with the small numerical aperture (up to 0.06) can be ‘absorbed’ by the cladding power stripper and meanwhile the signal light transmitted in the fiber core can be well maintained including the signal light power and the beam quality factor (M2).

The high quality cladding power stripper of Connet is the ideal device for the double-clad fiber laser/fiber amplifier to remove the residual pump light in the cladding, the ASE light leaking from the fiber core into the inner cladding and the higher-order mode signal light. This document only shows the specifications of the standard cladding power strippers. Connet also can customize the products with different fiber types according to customers’ requirements. If you have specific requirements, please contact Connet sales staff.

Features:
• Bear high power
• High power absorption
• Minimum signal power loss
• Meet RoHS standards

Applications:
• High power fiber laser
• MOPA-structure high power fiber amplifier
• Multistage double-clad fiber amplifier
• Other scientific research 

Main Test Equipment:

Test Equipment

Equipment Model/Parameter

Multimode Pump Laser Diode

915nm 65W, Output Fiber: Nufern MM-S105/125-22A

7*1 Pump Combiner

Input Pump Fiber: Nufern MM-S105/125-22A

Output Signal Fiber: Nufern LMA-GDF-20/400-M

Power Meter

Ophir F150A

Thermodetector

FLIR E40

Water-cooling Plate

Internally integrate the cooling water channel with the set water temperature of 20℃.

CPS

Fiber type: Nufern LMA-GDF-20/400-M

Test Method:

  1. Splice the pigtail fiber of the Laser Diode to the input fiber of the Combiner. Use a power   meter to measure and record the data of the combiner output power changes with the current of the Laser Diode.
  2. Splice the ouput fiber of the Combiner to the input fiber of the CPS.
  3. Apply a proper amount of thermal grease to the bottom of the CPS, then fix the CPS to the  water-cooling plate using four pieces of M3-type screws.
  4. Use a power meter to measure the data of the CPS output power changes with the current of the Laser Diode. Test the maximum temperature of the CPS housing using a thermal imager.

Test Results:

Output Power from Combiner (W)

50

100

150

200

Output Power from CPS (W)

0.95

1.80

2.65

3.55

CPS Stripping Efficiency (%)

98.1

98.2

98.2

98.2

CPS Cold Surface Temperature (℃)

20

20

20

20

CPS Max. Temperature (℃)

27.3

34.9

42.1

50.3

CPS Max. Temperature Rise Coefficient (℃/W)

0.146

0.149

0.147

0.151

Temperature Distribution Figure

Fig. 1

Fig. 2

Fig. 3

Fig. 4

50W            100W

Fig. 1 CPS Temperature Distribution @ Input 50W Pump Light               Fig. 2 CPS Temperature Distribution @ Input 100W Pump Light

150W          200W

Fig. 3 CPS Temperature Distribution @ Input 150W Pump Light              Fig. 4 CPS Temperature Distribution @ Input 200W Pump Light

Mechanical Design and Mounting Dimension (Unit: mm):

高功率CPS外形及安装尺寸

Fig. 5 High Power CPS (Max. Stripping Power: 200W)

低功率CPS外形及安装尺寸

Fig. 6 High Power CPS (Max. Stripping Power: 50W)

Instructions:

• The cladding power stripper is incapable of storing higher power. Please Install it on an actively cooled cooling plate and fill the gap between the stripper and   the cooling plate with the thermally conductive material to reduce thermal resistance.

• The cladding power stripper has a certain directionality. Please use it in the direction marked in the product label.

• The fiber inside the cladding power stripper is specially treated. Please do not touch it.


Post time: Aug-20-2018