Model 155C

Model 155COptical Module

Models 090 and 106C provide operating capabilities unavailable from other 904 and 1064 nanometer optical sources. Among them, 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, the 090 and 106C have 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 904 and 1064 nm, as well as the other wavelengths described in the Model 6040 product bulletin.


  • Trigger Internal 0.01 Hz to 100 MHz; external 0 to 100 MHz
  • Pulse Width 3 ns to 640 s
  • Impulse 400 ps typical (fixed)
  • Delay 0 ns to 640 s (plus fixed delay)
  • Photo Multiplier
  • Photo Detector
  • Fiber Optics Testing


Spectral Peak 1550nm +/- 30nm (nominal)
Spectral Width Less than 5nm (nominal)
Power Levels Standard 1mW,(custom up to 10mW), adjustable peak and baseline levels.
Resolution 100 uW
Transition Times (10% to 90%) 1ns rise time, 2ns fall time.
Dynamic Range 13 dB.
Absolute Accuracy +/- 1 dB (1mW to 20mW).
Fiber 6/125 Single Mode Fiber is Standard, 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 700 ps typical (fixed).
Delay 0 to 640 s (plus fixed delay)
External Drive 0 to 100 MHz; 300 mV min. amplitude; 50 ohms input.
External Modulation 100 Hz to 200 MHz ( 3 dB); 100 mV rms/mW sensitivity (typical); 50 ohm input.
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.


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