• Model 040-ST

The Model 040-ST provides operating capabilities previously unavailable to the 405 nanometer R&D field. Among them, a light source with repetition rates to 100 MHz and precision control of amplitude and time domain.

Combined with the BNC Model 6040 Mainframe, these modules generate fast pulses, subnanosecond impulses and CW light while maintaining the excellent timing accuracy, low jitter and nanosecond resolution of the mainframe. In addition, 040-ST has two inputs for stimulus from external signal sources: External Drive and External Modulation.

With External Drive the optical outputs are fast edge speed, flat top pulses corresponding to the input signal timing. In External Modulation an electrical signal is converted into analog optical form. Thus, it is now possible to transform signals from instruments such as a function or arbitrary waveform generator into their optical equivalents at 405 nm as well as the other wavelengths described in the Model 6040 product literature.



  • Trigger Internal 0.01 Hz to 100 MHz; external 0 to 100 MHz
  • Pulse Width 3 ns to 640 s
  • Delay 0 ns to 640 s (plus fixed delay)


  • Photo Multiplier
  • Photo Detector
  • Fiber Optics Testing



Spectral Peak 405 nm
Spectral Width 5nm
Power Levels 0-5 mW / 0-5 mW baseline
Resolution 30 uW
Transition Times 2ns rise time, 3ns fall time.
Dynamic Range 13 dB.
Absolute Accuracy +/- 1 dB
Fiber 9/125 Single Mode Fiber singlemode, Contact Factory for Custom
Connector ST is Standard, Contact Factory for Custom


Trigger Internal 0.01 Hz to 100 MHz; external 0 to 100 MHz.
Pulse Width Internal 3 ns to 640 s.
Impulse 2 ns typical (fixed).
Delay 0 to 640 s (plus fixed delay)
Module Delay 10 ns typical (fixed) mainframe's Pulse Out to module's Light Out. Jitter 100 ps rms.


A ROM determines the instrument's allowable operating conditions and units of display applicable for the installed module.

A nonvolatile memory (RAM) in each module stores up to ten complete settings of operating conditions and output pulse parameters (trigger level, delay, width, etc.).


The RAM-stored settings can be manually or bus transferred to the mainframe to produce the predetermined outputs.


2 Ibs net (0.9 kg); 5 Ibs shipping (2.3 kg). (Installed in Model 6040 Mainframe, est. 24 lbs. shipping)


Same as Model 6040 mainframe