Model 155 | 1550 nm Optical Module
Models 155 provide operating capabilities unavailable from other 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 model 155 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 1550 nm, as well as the other wavelengths described in the Model 6040 product bulletin.
OVERVIEW
FEATURES
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)
APPLICATIONS
Photo Multiplier
Photo Detector
Fiber Optics Testing
SPECIFICATIONS
LIGHT OUT
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
TIMING
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.
STORE
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.).
RECALL
The RAM-stored settings can be manually or bus transferred to the mainframe to produce the predetermined outputs.
WEIGHT
2 Ibs net (0.9 kg); 5 Ibs shipping (2.3 kg). (Installed in Model 6040 Mainframe, est. 24 lbs. shipping)
ENVIRONMENT
Same as Model 6040 mainframe.