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Home | Products | Pulse and Delay Generators | 6010 - Light Pulse Generator


Model 6010 Light Pulse Generator

 

for PHOTOMULTIPLIER, PHOTODETECTOR AND FIBER OPTICS TESTING



The Model 6010 Light Pulse Generator is a new type of light generator that offers the versatility and functions found previously only in electrical pulse generators. With this instrument you can control and vary pulse repetition rate, pulse width, pulse delay and peak light power level.

The Model 6010 is both a light pulse generator and a stabilized (steady state) light source. It can operate in both pulse and CW modes for applications in digital, analog, time or amplitude domain testing. It offers continuously variable pulse rate, pulse width, pulse delay and power level control. A double pulse mode, which provides two light pulses whose spacing is variable, is useful for pulse pair resolution, system response, and general purpose timing tests. In the external trigger mode, the output light pulse follows the rate of an incoming data train. In the external drive mode, the light pulse follows both the rate and width of an incoming wave. Operating at either 660 nm (Model 6010A), 820 nm (6010B), 560 nm (6010C), 490 nm (6010D), 850nm (6010E), or 1300 nm (6010F) the Model 6010 has the capability of producing linear, stabilized light in both pulse and CW modes.

The Model 6010's light generating circuits consist of an LED source, LED driver and an optical feedback loop. In the stabilized mode, the output light level is sampled and sensed by the optical feedback loop and photodiode. Any fluctuations of light power due to temperature or duty cycle effects are sensed by the photodiode circuits and corrected by the LED driver circuitry. In the high speed mode, the stablilizing circuitry is removed from the control loop.

A locking ten-turn potentiometer allows the user to linearly control and set light power over a broad range. Power level and versatile timing controls enable the user to quickly isolate problems as well as test and calibrate optical systems and their components.



Light Pulse Generator
Model 6010A Model 6010B Model 6010C Model 6010D Model 6010E Model 6010G
Spectral Peak
660 nm 820 nm 560 nm 490 nm 850 nm 450 nm
Spectral Band Width
±30 nm ±20 nm ±30 nm ±40 nm ±20 nm
Power Output







Peak 200 µW 100 µW 5 µW 300 nW 100 µW

Maximum Stabilized
(stabilized peaks)		 200 µW 100 µW 5 µW 300 nW 100 µW

Tempature Coefficient,
(stabilized, 10°C-40°C).		 0.05%/± 0.05%/± 0.05%/± 0.15%/±
(20°C-50°)		 0.05%/±
Power Adjustment Range
20 db 20 db 20 db 10 db 20 db
Power Linearity (10:1)







High Speed 4% 4% 4% 4% 4%

Stabilized 1% 1% 1% 1% 1%
Rise Time







High Speed 10 ns 10 ns 50 ns 75 ns 10 ns

Stabilized 100 ns 100 ns 500 ns 2 µs 100 ns
Fall Time







High Speed 25 ns 15 ns 100 ns 150 ns 15 ns

Stabilized 100 ns 100 ns 500 ns 2 µs 100 ns
Light Pulse Out Connector
Amphenol 9051
SMA style		 Amphenol 9062
SMA style		 Amphenol 9051
SMA style		 Amphenol 9051
SMA style		 Amphenol 9062
SMA style
Mating Connector Required
SMA style SMA style SMA style SMA style SMA style
Superscripts: 1 The cable, connecting the light source to the 905 SMA, is a 750 µm OD bundle of fibers. The individual fibers have a 46 µm OD and a NA of 0.55.2 The cable, connecting the light source to the 906 SMA, is a 100/120 µm fiber with a NA of 0.22.


Light Pulse generator output Output Modes

Pulse/CW:
Switch selectable, pulse or CW operation.

Stabilized/High speed (switch selectable):
In stablized mode, output intensity is monitored and stabilized via a feedback loop. In high speed mode, the feedback loop is switched out to allow fast risetime, high repetition rates, and narrow widths.

light pulse generator repetition rate Repetition Rate

    Internal:
    20 Hz to 20 MHz, high speed; 20 Hz to 500 kHz, stabilized. Continuously adjustable with coarse and fine controls. For 6010C and 6010D, max rates of 2 MHz and 100 kHz.

    External Trigger:
    0 to the maximum Internal rate. 1 V positive pulse triggers a pulse (single or double) with internal delay and width controls operative.

    External Drive:
    0 to the maximum Internal rate. 1 V positive pulse generates an output pulse with a width equal to the width of the incoming pulse; internal delay and width controls are inoperative.

    Single Cycle
    On pulse occurs each time the pushbutton is depressed.

Delay

    Single/Double Pulse:
    20 ns to ms high speed; 1 µs to 10 ms, stabilized. Continuously adjustable with coarse and fine controls.
    In the Single-Pulse mode, a single output pulse is delayed from the Trigger Out by an amount determinded by the Delay controls
    In the Double-Pulse mode, two equal width output pulses occur. The first pulse is coincident with the Trigger Out; the second pulse is delayed from the first by an amount determined by the Delay controls.

Width


  • 15 ns to 10 ms, high speed: 2 µs to 10 ms, stabilized. Countinuously adjustable with coarse and fine controls. 6010 C: minimum widths of 75 ns and 2µs. 6010 D: 200 ns and 5 µ.

    • Trigger Input/Drive


  • Positive 1 V pulse, 50 ohms input impedance, ±5 V maximum input.

    • Trigger Out


  • Positive 2.5 V pulse, 10 ns risetime, 50 ohms output impedance.

    • Pulse Out


  • Coincident with Light Pulse Out. ECL output (-0.9V to -1.8V); -0.9V occurs while light source is on.

    • Power Requirements


  • 115/230 V ±10%, 50 - 400 Hz, 30 W.

    • Mechanical


  • 5.25" H x 8.50" W x 13.0" D (133 x 216 x 330 mm).

    • Weight


    • 13 lbs. (5.9 kg) net; 19 lbs. (8.6 kg) shipping.




    Berkeley Nucleonics Corporation 2955 Kerner Blvd San Rafael, CA 94901 U.S.A
    Phone: 800.234.7858 Fax: 415.453.9956 E-mail: info@berkeleynucleonics.com