DFC BC / DFC BCF / DFC MD

Flexible beat detection units

  • Flexible beat detection units
  • Designed for use with DFC and DL pro
  • Stable and compact

TOPTICA's beat detection consists of two flexible modules: DFC BC (or DFC BCF) and DFC MD. Separating beam combination and beat detection into two units allows for placing them at different locations. The DFC BC and DFC MD units are specifically designed for a combination of the DFC with TOPTICA's DL pro tunable diode laser series, but can also be used with other cw lasers.

DFC BC
Beam Combiner
Beam Combiner

  • Beam combiner (comb + cw laser)
  • Adjustable split ratio for comb and cw laser light
  • Available from 420 to 2000 nm
  • Free space or fiber-coupled output
  • Comb-free cw output for experiment
  • Spectral operation range: approx. 100 nm (depends on central wavelength)
  • To be used in combination with DFC MD for beat detection
  • Dimensions (H x W x D): 49 x 100 x 100 mm3

DFC BCF
Beam Combiner Fiber
Beam Combiner Fiber

  • Beam combiner fiber-coupled (comb + cw laser)
  • Fixed split ratio for comb and cw laser light
  • Available split ratios for comb and cw laser:
    90:10, 70:30, 50:50 (in %, others on request)
  • Available wavelengths (in nm):
    780, 850, 935, 980, 1030, 1064, 1160, 1310, 1390, 1550 (others on request)
  • All-PM fibers (type depending on wavelength)
  • To be used in combination with DFC MD for beat detection
  • Dimensions (H x W x D): 23 x 90 x 200 mm3

DFC MD
Monochromatic Detector
Monochromatic Detector

  • Grating based tunable filter, 10 GHz bandwidth, < 1 GHz resolution
  • Low-noise photo diode for beat detection
  • Available from 420 to 2000 nm
  • RF output suitable as direct input for TOPTICA locking electroncis
  • Stand-alone narrow band frequency filter
  • Wavelength range 50 nm (depends on central wavelength)
  • Dimensions (H x W x D): 64 x 60 x 120 mm3
  • Measurement of the beat frequency using the beat monitoring unit of the DFC CORE module
  • Active locking of  the cw laser to the DFC (requires additional locking electronics for the cw laser)
  • Locking of the DFC to the cw laser (requires DFC CORE+ version)

 

 

Request a Quotation Application Note Phase and Frequency Locking of Diode Lasers