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Fiber-Coupled Xenon Light Source![]()
SLS205 Xenon Light Source SLS255B Replacement Xenon Bulb (Not to Scale) Application Idea The SLS205 Light Source in a Free-Space Configuration with 30 mm Cage System Components and SM1-Threaded Components Related Items ![]() Please Wait ![]() Click to Enlarge The SLS205 fiber-coupled light source shown with the included M111L01 solarization-resistant patch cable. ![]() Click to Enlarge Click for Raw Data The measured spectral power distribution for the SLS205 light source. The spectrum is plotted on a log scale so that both the underlying shape and spectral lines are visible. Features
Thorlabs' SLS205 Fiber-Coupled Xenon Light Source provides illumination from 240 nm to 1200 nm with intense lines between 800 nm and 1000 nm. The strong continuous spectrum at UV and visible wavelengths (200 - 700 nm) makes this an ideal source for UV and visible spectroscopy applications. This light source also emits at wavelengths out to 1200 nm, allowing for use with near-infrared-light applications. A constant power supply stabilizes the 75 W bulb, which has a short arc gap of 1.3 mm to support high coupling efficiency when used with the included patch cable. The shutter in the SLS205 light source can be controlled manually via the switch on the front panel or externally via a 0 to 5 V CMOS BNC port on the back panel. A fan cools the light source and bulb, enabling continuous operation for >30 hours (see the Graphs tab for lamp stability). The SLS205 light source comes equipped with an SMA905 fiber adapter on the output aperture and ships with a M111L01 SMA to SMA Solarization-Resistant Multimode Fiber Patch Cable. The fiber adapter can be removed so the lamp functions as a free-space source. The typical fiber-coupled output power is 5.5 mW using the included patch cable and 290 mW when used in a free-space configuration. Removing the adapter exposes internal SM1 (1.035"-40) threading that is compatible with other externally SM1-threaded fiber adapters. Four 4-40 tapped holes on the front panel are designed for 30 mm cage rods to provide compatibility with 30 mm cage system components. Using the cage system, it is possible to incorporate various optic mounts that are centered along the optical center of the lamp (as pictured in the image to the upper right). Please note that the SLS205 light source generates high-intensity UV light. Wear appropriate eye protection and do not look directly at the output during operation. Do not place hands or body parts in the path of the beam.
![]() Click to Enlarge SLS205 Xenon Light Source Front Panel ![]() Click to Enlarge SLS205 Xenon Light Source Back Panel
![]() Click to Enlarge Click for Raw Data The output of the SLS205 lamp over 30 hours of continuous operation. This graph does not include 45 minutes of warm-up to ignite the source and stabilize the output. ![]() Click to Enlarge The bulb should be held by the handle with gloved hands. Avoid making contact with the bulb envelope directly. Bulb HandlingThe bulbs used in a xenon lamp operate at a very high temperature. If handled incorrectly, they will become a serious hazard to users and could potentially cause severe injury. It is critical to follow safety instructions when handling them. The guidelines below describe correct bulb handling.
Bulb InstallationThe bulb must be installed in the SLS205 Xenon Light Source before operation. The instructions and photos below detail the recommended procedure for installing the bulb. Do not attempt to change the light bulb while the bulb and unit are hot. Allow at least 30 minutes after turning the lamp off before attempting to replace the light bulb. We strongly recommend wearing gloves when replacing the bulb to prevent skin oils from being deposited onto the bulb. If you suspect the bulb is dirty, carefully clean it with alcohol before connecting it to a power supply. Open the Lamp Housing
Transfer the Bulb to the Housing
Secure the Bulb in Place
For instructions on removing and replacing the bulb, please refer to steps listed in the manual, which can be accessed by clicking on the red docs icon (
Below is a selection guide for all of our white-light, broadband light sources (or lamps). In addition to these sources, Thorlabs also offers unmounted white-light LEDs, white-light mounted LEDs, white-light fiber-coupled LEDs, and high-powered, white-light Solis® LEDs.
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