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ASB-W-020 20W Tungsten-Halogen Fiber Light Source article

ASB-W-020 20W TH Fiber light source

  • Offers excellent color temperature stability
  • Provides illumination for applications through optical fiber
  • Focus adjustable light source SMA and fiber bundle adaptor
  • Features built in current regulation
Optimum Illumination for Your Fiber Optic Needs

The ASB-W-020 is a complete light source assembly with a tungsten-halogen lamp that emits in the 300 to 2500 nanometer (nm) wavelength region. It has been designed to transfer the maximum possible illumination to a variety of fibers. The tungsten-halogen lamp of the ASB-W-020 is a near blackbody source of light with a built-in fused silica lens that focuses the light to the fiber. Figure 1 shows blackbody spectral distributions at various color temperatures in Kelvin (K). The ASB-W-020 spectral distributions resemble those of Figure 1 out to about 2500nm, beyond which the transmission of the fused silica lens limits the output.
In addition to the 20 Watt tungsten-halogen lamp (SP # ASB-W-020B), the ASB-W-020 features a lamp housing and a current regulator to assure a stable output. The housing contains an adjustable lamp mount. A variety of flanges allow the mounting of different fiber terminations, from a single fiber to bundles.
The 20 Watt tungsten-halogen lamp used in the ASB-W-020 has a nominal color temperature of 3100 K and the regulated power input assures an average life of 2000 hours.
The power supply provided with the ASB-W-020 is a wall plug-in type.
Please click here to view the manual for this light source.


 Feature  Value
 Lamp:  Tungsten-Halogen
 Power:  Wall transformer, 120 VAC, 50/60 Hz to 24 VDC at 2.0 amps. 220 VAC version available
 Current Regulation:  Built-in, ± 0.4%
 Color Temperature:  3100° K
 Bulb Life:  2,000 hrs. average (nominal)
 Spectral Distribution:  Near blackbody
 Housing:  Aluminum, forced air cooled, Limited focus adjustment
 Connector:  SMA Fiber connector Type 905
 Options:  Length 3.8 inches (9.8cm) Height 2.3 inches (5.9cm) Width 2.1 inches (5.7cm)
 Weight:  11 ozs. (0.3 kgs.)
  • Spare lamp ASB-W-020B
  • Mounting flange for 10mm fiber bundle
  • Optical bench mounts
Specify FC, ST or CS for specific fiber couplers.
 Warranty:  One year


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