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CPS / Mode Field Adapter

Products

1.0um Mode Field Adaptor- Forward

Mode field is different in fibers with different core diameter and NA. Splicing loss is large between two fibers with different mode field. In order to reduce splicing loss, mode field must be similar. MFA can optimize splice loss significantly, usually <0.5dB, even <0.3dB between different fibers.

Features

  • Low Insertion Loss
  • High Power Handling
  • Custom Configurations Available

Applications

  • Fiber Lasers
  • Fiber Amplifiers
  • Lab/Production Testing
Mode field is different in fibers with different core diameter and NA. Splicing loss is large between two fibers with different mode field. In order to reduce splicing loss, mode field must be similar. MFA can optimize splice loss significantly, usually <0.5dB, even <0.3dB between different fibers.
Mode Field Adaptors is designed to makes two fibers to keep mode field diameter matched with low fundamental mode signal loss and minimal degradation of beam quality (M2). These devices can also be used to absorb residual pump light in the reverse direction, preventing damage to the seed or isolator.
Define small MFD fiber to large MFD fiber is F-Forward, large MFD to small MFD is B-Backward. Custom Mode Field Adaptors can be designed to meet a wide range of fiber types.

General Configuration for Forward SM MFA: 1.0μm

WORKING WAVELENGTH(NM) SIGNAL INPUT FIBER SIGNAL OUTPUT FIBER SIGNAL INSERTION LOSS (DB) MAX. POWER HANDLING
1020~1080 1060-XP or 6/125 DC 10/125 DC ≤0.3 30W
1020~1080 15/130 DC ≤0.3 30W
1020~1080 20/125 DC ≤0.3 30W
1020~1080 25/250 DC ≤0.5 30W
1020~1080 30/250 DC ≤0.5 30W
1020~1080 20/400 DC ≤0.5 100W
1020~1080 10/125 DC or SC 15/130 DC ≤0.5 30W
1020~1080 20/125 DC ≤0.5 30W
1020~1080 25/250 DC ≤0.5 50W
1020~1080 30/250 DC ≤0.5 100W
1020~1080 20/400 DC ≤0.5 100W

General Configuration for Forward PM MFA: 1.0μm

WORKING WAVELENGTH(NM) SIGNAL INPUT FIBER SIGNAL OUTPUT FIBER SIGNAL INSERTION LOSS (DB) MAX. POWER HANDLING
1020~1080 PM980-XP 10/125 PM DC ≤0.5 30W
1020~1080 15/130 PM DC ≤0.5 30W
1020~1080 20/125 PM DC ≤0.5 30W
1020~1080 25/250 PM DC ≤0.5 100W
1020~1080 20/400 PM DC ≤0.5 100W
1020~1080 10/125 PM DC / SC or

PM1060L

 15/130 PM DC ≤0.5 30W
1020~1080 20/125 PM DC ≤0.5 30W
1020~1080 25/250 PM DC ≤0.5 100W
1020~1080 30/250 PM DC ≤0.5 100W
1020~1080 20/400 PM DC ≤0.5 100W

Remark:

  1. Other configuration and higher power handling can be customized.
  2. All MFA default with bare fiber, 0.8m length of pigtail, please contacts us for special request.
  3. The signal loss means the fundamental mode signal loss.
  4. ER≥18dB for PM fiber MFA.

Package Information

Package Type
P1
P2
P3
Dimensions (mm)
Ф4.0×60
65x12x7
80x12x8
  1. 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.
  2. Device package must be mounted onto heat sink (active cooling is suggested) with thermal paste for high power.
Download Drawing in PDF:Pump and Signal Combiner

Order information

P/N: MFA (PMMFA)-A-B-C-D-E-F

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
Working Wavelength
Direction
Power Handling
Input Fiber Type
Output Fiber Type
Fiber length
30:1030nm
64:1064nm
F:Forward
B:Backward
05:5W
10:10W
25:25W
50:50W
XX: Other
XXX (fiber code)
XXX (fiber code)
08:0.8m(default)
10:1.0m
20:2.0m
Part Number Example: PMMFA-64-F-30-P10/125/08D-P25/250/06D-08

Description: 1064nm PM Mode Field Adaptor, Forward, Max. 30W power handling, PM 10/125µm, 0.08/046NA input signal fiber, PM 25/250µm, 0.06/046NA output fiber, 0.8m fiber length.

Ordering Information for Custom Parts:

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