Model 155H

Model 155H Optical Pulse Generator Mainframe

Used in Conjunction with BNC Model 6040 Optical Pulse Generator Mainframe, the Model 155H is similar to the Model 106H, a high power Light Pulse Generator without CW Operation. The pulse wavelengths are selectable by the user and range from 1535nm - 1585nm. Standard power is 50mW, but new laser source may be selected offering up to 200mW. Fiber options exist as well: Single Mode (9/50, 9125) or Multi Mode (50/125).


  • Trigger Internal 0.01 Hz to 2Khz; external 0 to 2Khz
  • 4 Fix Pulse Width
  • Delay 0 ns to 640 s (plus fixed delay)
  • Photo Multiplier
  • Photo Detector
  • Fiber Optics Testing


Spectral Peak 1064nm +/- 30nm (nominal)
Spectral Width Less than 5nm (nominal)
Power Levels 5mW to 50mW Standard (up to 200mW custom), adjustable peak level; baseline fixed at zero.
Resolution 0.2mW.
Transition Times (10% to 90%) 1ns rise time, 5ns fall time.
Dynamic Range 10 dB.
Absolute Accuracy +/- 1 dB (10% to full scale).
Temperature Coefficient 0.1 dB/°C.
Fiber 62/125 Multi-Mode Fiber Standard (Contact Factory for custom)
Connector ST is Standard, Contact Factory for Custom)


Trigger Internal 0.01 Hz to 2 kHz; external 0 to 2 kHz.
Pulse Width 10, 15, 20 and 25 ns. (Contact factory for custom widths between 5 nsand 50 ns.)
Delay 0 ns to 640 s (plus fixed delay) in Single Pulse. Minimum pulse separation500 uS.
Module Delay 30 ns typical (fixed) mainframe's Pulse Out to module's Pulse Out and 35 ns to Light Out. Jitter 100 ps rms.


Amplitude 2 V into 50 ohms.
Transition Time 1.5 ns rise time, 2 ns fall time.


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 (trigger level, slope, etc.) and output pulse parameters.


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) (when installed in a Model 6040 Mainframe, est. 24 lbs. shipping)


Same as Model 6040 mainframe.


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