The D200 is a compact, DC-coupled fast laser driver, providing up to 4 amps of regulated constant current. A built-in edge-triggered pulse generator produces up to 1 microsecond pulse widths and 2 nanosecond transition times, capable of driving lasers with forward voltages up to 9 volts. A pulse-follower mode is also provided, accommodating externally-defined trigger widths up to 100% duty continuous-wave (CW). Power, pulse width, drive current and differential triggering functions are accessible through a ribbon cable header for embedded OEM applications. A low-inductance laser drive interface permits direct laser connection or custom interposer and flex-cable attachment.
The D200 is compatible with Highland's model P400 4-channel benchtop digital delay and pulse generator and model T560 4-channel compact digital delay and pulse generator.
FUNCTION | Diode laser driver with internal pulse width generator |
TRIGGER INPUT | Switchable single-ended (SE) or differential SE Threshold is fixed 0.4 volts, 50 ohm load Differential input is LVDS/ECL/LVPECL/CML, 100 ohm load Pulse mode trigger rate, 0 to 30 MHz; min trigger width 1 ns Follower mode trigger rate, 0 to 100 MHz |
PROPAGATION DELAY | 5 ns, typical, follower range 13 ns, typical, narrow-width range 35 ns, typical, medium-width range 276 ns, typical, wide-width range |
INTERNAL PULSE GENERATOR | Pulse mode triggers on input rising edge Width adjustable up to 1 µs in 3 ranges |
LASER DRIVE OUTPUT | 0 to 4 amps adjustable Current source compliance supports up to 9 volt lasers Current source program accuracy variation < 1% Duty cycle 0 to 100% |
RISE/FALL TIMES | 2 ns nominal |
JITTER | 15 ps RMS, typical, ≤ 40ps RMS, guaranteed, narrow-width range 35 ps RMS, typical, ≤ 100ps RMS, guaranteed, medium-width range 175 ps RMS, typical, ≤ 500ps RMS, guaranteed, wide-width range |
CONTROL | Two trimpots or analog inputs set laser ON current and pulse width Analog inputs are 0 to +5 volts, 1.5 KΩ load Follower / pulse mode is switch selected Pulse width range is switch selected |
OPERATING TEMPERATURE | -20° C to +60° C, non-condensing Self-resetting over-temperature shutdown |
POWER | +6 to +12 volts via barrel connector or ribbon header Current consumption: 5.5 amp max |
CONNECTORS | Single-ended input: SMB connector LVDS/PECL, control, power: 10-pin 50-mil 2x5 ribbon cable header MONITOR output: SMB connector Power: 2.1 x 5.5 mm barrel connector, center pin positive |
LED INDICATORS | Orange POWER |
PACKAGING | 4-inch x 4-inch printed circuit board |
D200-9: picosecond laser diode driver evaluation kit (includes D200-1, J205 universal 5V power supply, two J53 SMB to BNC cables, D203 mounting block, D204 thermal pad, and hardware)