Fiber-coupled Lasers series 51nano-S (PM)

Low coherence laser source with polarization-maintaining fiber cable

51nano-S
51nano-S
51nano-S
51nano-S
51nano-S
51nano-S
51nano-S
51nano-S
Representative product images. Individual product images are found on the individual product pages.
Low noise, low coherence laser moduleLow
Coherence
PM fiberPM

Features

Laser Diode Beam Sources of type 51nano-S have reduced power noise, reduced coherence length and a lowered speckle contrast.
  • Reduced power noise: typ. < 0.15 % of Po (RMS, Bandwidth < 1 MHz)
  • Reduced coherence length: Coherence length ≈ 300 µm
  • Reduced speckle contrast
  • Various wavelengths from 375 nm to 1310 nm
  • Laser output power up to 30 mW
  • Polarization-maintaining fiber cable (Polarization Extinction Ratio PER ≥ 23 dB (for λ < 600 nm ≥ 21 dB))
  • FC APC connector (8°-polish), optional DIN AVIO or E-2000, end caps for wavelengths < 635 nm
  • Modulation analog and TTL
  • With interlock and key switch (conform to EN 60825-1)
  • Beam profile is rotationally symmetric with Gaussian intensity distribution
Alternative: Laser Diode Beam Source 51nano-N (OEM version without key switch or interlock) or with single-mode fiber cable

Description

The fiber-coupled Laser Diode Beam Sources of type 51nano-S have reduced power noise (typ. < 0.15 % of Po (RMS, Bandwidth < 1 MHz)), reduced coherence length (≈ 300 µm) and a lowered speckle contrast. 

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 to a polarization-maintaining fiber cable (standard, polarization extinction ratio ≥ 23 dB). As a result the beam profile is rotationally symmetric with Gaussian intensity distribution and a linear state of polarization. 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:

  • Other connector types including DIN, AVIO or E2000
  • Other fiber lengths
  • Incorporated vacuum feed-through

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”
  • For a quick start the lasers are shipped with a interlock connector type BC0106F-iLCK

An OEM version is available as type 51nano-N without key switch or interlock which is not conform to EN 60825-1.