Variable Pulsed LEDs - VPLED Series (UV/VIS/NIR) | Edinburgh Instruments
Variable Pulsed LEDs - VPLED Series (UV/VIS/NIR)

Variable Pulsed LEDs - VPLED Series (UV/VIS/NIR)

  • Optimised for MCS
  • 14 Pre-Set pulse widths from 50 ns to 1 ms
  • External trigger capability
  • Adjust pulse width and repetition rate with input trigger pulse
  • Operation in CW mode
  • Spectrally Purified Output
  • Compact pulg-and-play design

Product Description

The VPLED series of LEDs provide variable width pulses from ns to ms, as well as CW operation with powers in the mW range.

They are optimised for long photoluminescence lifetime measurements using the Multi-Channel Scaling (MCS) detection method. The width of the excitation pulses is easily controlled from the VPLED allowing quick optimisation of the measurement conditions.

The VPLED diodes are compact, maintenance free, and user-friendly. Although they are designed to match Edinburgh Instruments spectrometers, they can be incorporated into any experiment thanks to their external trigger capability.

Technical Specifications

  Technical Specifications
Available Wavelengths (± 10 nm) VPLED 255, 275, 295, 310, 325, 340, 365, 380, 410, 470, 525, 590, 605, 630, 740, 770, 850, 940, 1050, 1200, 1300
Typical Spectral Width (FWHM) (nm) * 10 ± 4 – 50 ± 5
Typical Average Power in CW mode (mW) * 0.1 – 2.0
Typical Peak Power at Min. Pulse Width (mW) * 0.4 – 5.0
Laser Class Class 3R (410 nm – 770 nm) or Class 3B (others)
Pulse Widths ns: 50, 100, 200, 500
μs: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000
External Trigger Width Mode Pulse width and repetition rate defined by external trigger input
Max. duty cycle 50%
CW Mode Yes
Bias Supply 15 Vdc +/- 5%, 15W (2.1mm DC jack)
Trigger Output SMA, NIM Standard
Interlock Input Hirose HR10A-7P-4P(73), (Link pin1 and pin 2 to ground – interlock healthy)
Trigger Input Hirose HR10A-7P-4P(73), (Signal pin 4 and ground pin 3)
Trigger Input Signal TTL > 50 ns pulse. Trigger on rising edge.
0.0 V < Low level < 0.5 V, 2.5 V < High level < 5 V
Key Switch Yes
Spectral Conditioning Built-in filter to minimize out-of-band emission (no spectral filtering needed)
Physical Dimensions Overall: 168 mm length x 64 mm x 64 mm
Collimator tube: φ 30 mm x 38 mm
Tapped Holes for Stud Mount 2 x M6
Weight 750 g

* Wavelength dependent. Please contact Edinburgh Instruments for wavelength-specific data.

CLASS 3B/3R LED PRODUCT

Avoid exposure to beam. Light emitted by the source may be harmful to the human eye and to skin. Please obey laser safety regulations. This product complies with the US federal laser product performance standards.

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