TLS120Xe High Power Tuneable Light Source (280 nm — 1100 nm)
4 weeks
TLS120Xe Configuration Options
There are three main aspects of the TLS120Xe that are configurable:
- The primary xenon light source determines the overall maximum output power of the TLS120Xe. The main difference between the two light choices available is that the higher power one has a much sharper cathode, resulting in a smaller plasma source which can be more efficiently be coupled into output optics. This results in significant brightness gains but reduced lifetime. Since the TLS120Xe is configured to provide the current specific to these light bulbs, changing between them is not a trivial operation. For this reason, the choice of light bulb determines the exact model of TLS120Xe to order.
- The bandwidth is set by the slit widths, and the user can swap between slits of different widths. The trade-off between wide and narrow slits are primarily output power and bandwidth, but wide bandwidth slits also let through more of the xenon source's spectral features.
- The output optic is something the user can easily swap if the correct adapters are to hand. The trade-off between the various available options is spectral range, throughput, and cost.
Main Configuration
TLS120Xe main configurations
| Xenon Lamp | Optimised for | Drive Current | Lamp lifetime | TLS120Xe Part # |
| 75 W | long life | 5.4 A | 3000 hours (typical) | TLS120Xe-75W |
| 100 W | brightness | 7.0 A | 500 hours (typical) | TLS120Xe-100W |
Bandwidth and Wavelength accuracy
The bandwidth of light emitted by the TLS120Xe can be managed by chosing particular slit widths. While narrower slits select a narrower spectral region, wider slits allow more of the spectrum to pass through. Having wider slits increases the overall output brightness.
The cost of wider slits is that a broader spectral range of the source light is allowed to pass through the device, complete with the spectral features that are present in the source. This means that both the peak wavelength and bandwidth may be different from the expected values.
For narrow slits, the spectral filtering of the slits dominate the output spectral shape resulting in a well-defined peak:
- lower output power
- highest wavelength accuracy
- most accurate bandwidth
- overall intensity varies strongly with xenon spectral features in regions with sharp emission peaks
For wide slits, the spectral features of xenon may dominate the output spectral shape resulting in a bright but uneven peak:
- higher output power
- lower wavelength accuracy
- bandwidth less well-defined
- less overall variation in intensity
Bandwidth Options
| Nominal Bandwidth | Slit Width | Order Code |
| 5 nm nominal | 0.74 mm | SA-FSP(0.74) |
| 10 nm nominal | 1.45 mm | SA-FSP(1.45) |
| 20 nm nominal | 2.90 mm | SA-FSP(2.9) |
| 40 nm nominal | 5.92 mm | SA-FSP(5.92) |
| others available |
| Contact us! |
Output Optics
The choice of output optics is generally motivated by application requirements, wavelength range, and cost. Generally wider optics are easier to couple light into, resulting in intensity gains. Output optics with different connectors require different output couplers, but these are user-swappable.
Output optic options
| Output optic | Wavelength Range | Length | Diameter | Part # | output coupler | Monitor port adapter # |
| SMA fibre | 250 nm – 1200 nm | 1 m | 1.5 mm | SMA-1500-1000 | 45937 | – |
| UV grade fused silica fibre bundle | 200 nm – 1350 nm | 1 m | 4 mm | FIBRE-UV-4-4-1000 | 45936 | 46888 |
| Liquid light guide | 280 nm – 700 nm | 1 m | 3 mm | LLG-3-1000 | 45935 | 46915 |
| Your own SMA fibre |
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| 45937 | – |
| Other optic |
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| contact us | contact us |
Spares
Spare bulbs are available from Bentham or from their respective manufacturers. Each TLS120Xe ships with its output current matched to the particular bulb type that it ships with. Do not fit a bulb requiring a different current.