20W Tungsten-Halogen 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

Lamp 20W Tungsten-Halogen (350 lumen)
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 Time 2,000hrs, Average(nominal)
Spectral distribution Near blackbody
Housing Aluminum, forced air cooled,
Limited focus adjustment
Connector SMA905
Dimension Length - 3.9 inch(9.8 cm)
Height - 3.5 inch(9.0 cm)
Width - 2.1 inch(5.4 cm)
Weight 0.3 Kg
Option Spare lamp ASB-W-020B
Mounting flange for 10 mm fiber bundle
Optical bench mounts
Specify FC, ST, or CS for specific fiber couplers

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 (KSP # 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.