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51nanoFI-S with Faraday isolator

Fiber-coupled low coherence laser source with single-mode or polarization-maintaining fiber cable

51nanoFi-S
51nanoFi-S
51nanoFi-S
51nanoFi-S

Features

Laser Diode Beam Sources of type 51nanoFI-S have reduced power noise, reduced coherence length and a low speckle contrast as a result of the internal RF modulation.
  • Integrated Faraday isolator for feedback protection (> 30 dB)
  • Reduced power noise: < 0.1 % RMS (< 1 MHz)
  • Reduced coherence length: Coherence length ≈ 300 µm
  • Reduced speckle contrast
  • Various wavelengths from 405 nm to 1550 nm
  • Laser output power up to 30 mW
  • Single-mode fiber cable or polarization-maintaining fiber cable (polarization extinction ratio ≥23 dB)
  • FC APC connector (8°-polish), optional DIN AVIO, ST or E-2000, end caps for wavelengths < 635 nm
  • With interlock and key switch (conform to EN 60825-1)
Alternative: Laser Diode Beam Source 51nanoFI-N (OEM version without key switch or interlock)

  • Low noise laser module (0.1 % RMS, @<1 MHz)
  • With integrated Faraday isolator

Description

The fiber-coupled Laser Diode Beam Sources of type 51nanoFI-S have reduced power noise (< 0.1 % RMS (< 1 MHz)), reduced coherence length (≈ 300 µm) and a low speckle contrast as a result of the internal RF modulation. Additionally sources of type 51nanoFI-S have an integrated Faraday isolator to protect the laser source from back-­reflection. 

Electrical features
The output power is adjustable using a potentiometer or using the two modulation inputs for analog and TTL. The electrical cable is 1.5 m long. There are two possible supply voltages 5 V or 12 V. Other electrical cables and connectors on request.
More details on electronics type: HP, H.

Fiber cable
The source is fiber-coupled polarization-maintaining fiber cable (standard, polarization extinction ratio > 23 dB). As a result the beam profile is rotationally symmetric with Gaussian intensity distribution. The fiber cable is equipped with an FC APC connector (8°-polish). Fiber connectors with end caps are used for wavelengths <635 nm. The fiber cables have strain-relief and protective sleeving (Ø 3 mm). Standard cable length is 150 cm.
Fiber Options:
  • Single-mode fibers with or without core-centred FC type connector
  • Other connector types including DIN or AVIO,ST or E2000
  • Other fiber lengths
  • Incorporated vacuum feed-through
Faraday isolator
Faraday isolators are used to protect the laser sources from back-reflection, which causes mode hopping, laser noise, frequency instability and a shorter laser lifetime. The Faraday isolator has a high isolation > 30 dB.


Laser safety
The laser safety is conform to IEC 825 / EN 60825-1. 
  • Interlock chain for the remote deactivation of the laser
  • Laser power-up is only possible using the key switch
  • LED status indicator for “Laser ON”
An OEM version is available as type 51nanoFI-N  without key switch or interlock which is not conform to EN 60825-1. 


Technical data

51nanoFI-S with Faraday isolator

Series
51nanoFI-S
Wavelength
405 nm - 1550 nm
Power noise
< 0.1 % RMS (< 1 MHz)< 0.1 % RMS (< 1 MHz)
Coherence length
≈ 300 µm
Fiber cable
single-mode or polarization-maintaining
Fiber cable length
1.5 m (standard)
Fiber connector type
FC APC (standard)
Supply voltage
5 V or 12 V
Electr. cable length
1.5 m (standard)
Connector type (5V)
SV30 (Lumberg)
Connector type (12V)
SV40 (Lumberg)
Cable type
shielded 3 x 0.14 mm^2
Modulation
analog and TTL
Operating temperature
15 - 35°C ± 0.5°C
Dimensions
Weight
varying (> 530 g)

Order Options

Order CodeWavelengthTyp.Output PowerSupply VoltageElectr. Connector TypeFiber TypeEnd capElectronics Type
51nanoFI-S-405-13-M29-P-12-4-28-0-150405 nm13 mW12 VSV40PM singlemode with FC APCxHP
51nanoFI-S-515-18-X17-P-12-4-28-0-150515 nm18 mW12 VSV40PM singlemode with FC APCxHP
51nanoFI-S-635-2.3-H10-P-5-2-28-0-150635 nm2.3 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-635-2.3-H10-P-12-4-28-0-150635 nm2.3 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-640-19-H21-P-5-2-28-0-150640 nm19 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-640-19-H21-P-12-4-28-0-150640 nm19 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-660-5.4-M01-P-5-2-28-0-150660 nm5.4 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-660-5.4-M01-P-12-4-28-0-150660 nm5.4 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-660-27-Q02-P-5-2-28-0-150660 nm27 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-660-27-Q02-P-12-4-28-0-150660 nm27 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-685-8-H13-P-12-4-28-0-150685 nm8 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-685-8-H13-P-5-2-28-0-150685 nm8 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-780-8-H06-P-5-2-28-0-150780 nm8 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-780-8-H06-P-12-4-28-0-150780 nm8 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-830-8-H19-P-5-2-28-0-150830 nm7.2 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-830-7.2-H19-P-12-4-28-0-150830 nm7.2 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-1064-8-Q05-P-5-2-28-0-1501064 nm8 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-1064-8-Q05-P-12-4-28-0-1501064 nm8 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-1064-2-M14-P-5-2-28-0-1501310 nm2 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-1064-2-M14-P-12-4-28-0-1501310 nm2 mW12 VSV40PM singlemode with FC APC H
51nanoFI-S-1550-1.7-M08-P-5-2-28-0-1501550 nm1.7 mW5 VSV30PM singlemode with FC APC H
51nanoFI-S-1550-1.7-M08-P-12-4-28-0-1501550 nm1.7 mW12 VSV40PM singlemode with FC APC H
Other types e.g. with single-mode fiber cable are available.       
        
        
        
        

Downloads

000824000300.stp
000824000300.stp

Accessories

Power Supply 12 V
Power Supply 5 V