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LMA

Er-doped large mode area amplifier

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LMA

The LMA is an amplifier system for free-space communications. With ultra low nonlinearities, this system is made for distortion-free amplification of the highest peak powers.

  • Large Mode Area Fiber Optical Amplifier
  • 1535 – 1575nm Wavelength Range
  • 20W / 43dBm Avg. Output Power Fiber-Coupled (up to 40W Free-Space)
  • CCSDS / SDA Standard Compatible*
  • AM Tracking Tone Amplification
  • Low-Loss Fiber Delivery to Telescope
  • Ultra-Low Nonlinearity
  • Fully Remote Controllable
  • PM & non-PM
Spec Sheet
System specifications
Specification type Value Comment
Wavelength range1535 nm – 1575 nmOther wavelengths available on request
Average output powerMax. 40 WAt 1550 nm; fiber-coupled up to 20 W
Output power range0.5 W - 40 WContinuously controllable
Average input power range0.5 mW – 100 mWPre-amp available on request
PolarizationLinear / RandomPM and non-PM systems available
Output fiber length4 m – 8 mDepending on max. output power
Fiber terminationFC/APC high power connectorFree-space collimated output available
Measurements
Shack-Hartmann wavefront measurement of the output beam with rms wavefront error of 23 nm.
measurement
Pointing and lateral shift of the laser output beam during a tilting test of the laser head carried out at full operational power level of 22 W of output power at 589 nm.
Emission wavelength during climate chamber test ±40 MHz spec, ambient temperature over 80 hours.
Downloads
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