aeroGAIN-BASE

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aeroGAIN-BASE – high power ytterbium fiber gain modules

The aeroGAIN-BASE are high-performance ytterbium fiber gain modules. They are designed for industrial manufacturers of ultrafast pulsed fiber lasers, or you can use them as an easy entry into high-power scientific setups.

We have equipped all modules with an optional 10 or 15 µm step-index single-mode fiber input for easy splicing to a seed source. The gain fiber, our industry-leading DC-200/40-PZ-Yb, has the industry’s largest single-mode MFD.

Key Features

High power with low nonlinearity

Truly single-mode polarized system

Excellent pointing stability

10 or 15 µm step-index fiber input

Easy thermal management

­Robust industrial construction

Models and options

aeroGAIN-BASE-1.1
aeroGAIN-BASE-1.1
Yb fiber length 3.0 m
Output power 75 W
Options
Recommended signal wavelength: 1060-1070 nm
aeroGAIN-BASE-1.2
aeroGAIN-BASE-1.2
Yb fiber length 1.8 m
Output power 75 W
Options
Recommended signal wavelength: 1030-1040 nm

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The high pointing stability and low nonlinearity enable a really flexible and versatile laser architecture where the same aeroGAIN-BASE module can be used for amplification of fs-, ps- and ns pulses, with high-frequency conversion efficiency whenever needed.

For optimal performance, the aeroGAIN-BASE modules are designed for counter-propagating pumping through the output end-cap. The end-cap and the last part of the gain fiber are mounted in a water-cooled housing (aeroGAIN-BASE-1.1 and 1.2) to ensure maximum performance and lifetime.

All modules are assembled and tested in cleanrooms. The aeroGAIN-BASE-1.1 and -1.2 come mounted on a tooling plate to ensure the endcap is clean. This tooling plate can also be used as a mount in the laboratory.

The aeroGAIN-BASE design has proven its industrial 24/7 reliability through a significant number of long-term tests including continuous 25,000 hours of operation at 55 W output power. Lifetime in specific OEM systems depends on pump power, pump wavelength, cooling efficiency, etc. Get in touch for supporting system design.

Specifications

Choose model:
aeroGAIN-BASE-1.1
aeroGAIN-BASE-1.2
Signal wavelength
1060-1070 nm
1030-1040 nm
Recommended signal input power
>500 mW for high power operation
>500 mW for high power operation
Recommended pulse duration
fs, ps, or ns pulses
fs, ps, or ns pulses
Optional signal input fiber
10 µm PM core fiber 125 µm / 250 µm
10 µm PM core fiber 125 µm / 250 µm
Optional signal input fiber
15 µm PM core fiber 250 µm / 350 µm
15 µm PM core fiber 250 µm / 350 µm
Max signal gain
<20 dB (max 75W out)
<20 dB (max 75W out)
Rated output power
75W
75W
Beam quality, typical
M2 ≤ 1.3
M2 ≤ 1.3
Mode field diameter
31 ± 2 µm
31 ± 2 µm
PER
≥ 15 dB
≥ 15 dB
Typical optical efficiency1)
> 70 %
> 70 %
Typical core to clad power ratio1)
> 96 %
> 96 %
Pump center wavelength
976 ± 2 nm
976 ± 2 nm
Maximum pump power Pp
100 W @ fiber facet
100 W @ fiber facet
Recommended pump NA
≤ 0.22 (max NA < 0.55)
≤ 0.22 (max NA < 0.55)
Recommended pump type
Fiber delivered 200/0.22 (max NA<0.55)
Fiber delivered 200/0.22 (max NA<0.55)
Pump cladding diameter
200 ± 2 µm
200 ± 2 µm

1) Evaluated with 2 W input power at 1064 nm and 75 W output power

aeroGAIN-BASE-1.1
aeroGAIN-BASE-1.2
Base plate dimensions1)
See datasheet
See datasheet
Weight
1.8 kg (without tooling plate)1)
1.8 kg (without tooling plate)1)
Length of input pigtail
1 m
1 m
Output end facet angle
0 degree
0 degree
Endcap length / diameter
6 mm / 7 mm2) – AR coated
6 mm / 7 mm2) – AR coated

1) The system is shipped on a larger tooling plate that can also be used for mounting the module during test.
2) Open aperture.

aeroGAIN-BASE-1.1
aeroGAIN-BASE-1.2
Cooling flow for the base
4 ± 2 liter/minute
4 ± 2 liter/minute
Cooling flow in the tube
0.2 – 0.5 liter/minute
0.2 – 0.5 liter/minute
Cooling water temperature
25 ± 5°C
25 ± 5°C
Max temperature of base-plate
35 °C
35 °C

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