Please note the 5700 series is being phased out and will be replaced by the more versatile LDX-36000 High Power Laser Diode Driver. Once the stock of 5700 series is depleted the product will be discontinued. To help in the transition we have created a Comparison of Newport 5700 and ILX Lightwave LDX-36000 Instuments.
Newport Corporation, a widely known leader in laser diode control and test instruments, introduces all new 5700 Series High-Power Laser Diode Drivers, available in one of the following configurations: 30 A 5 V (Model 5700-30-5) , 80 A 7.5 V (5700-80-7), 150 A 20 V (5700-150) and a 100 A 30 V (5700-100). The 30 A and 80 A laser diode drivers are best suited for driving a single bar laser diode, while the 100 A and 150 A models are for a high power diode bar stack. Ideal for R&D, manufacturing, and quality control, the products are capable of operating in either CW (continuous wave) or pulsed current mode, either locally or remotely controlled. A full LIV characterization of laser diodes is attainable via USB2.0 interface, and software drivers provided with the instrument. Incorrect settings are prevented during the setup mode to protect the laser diode. When the instrument power is turned off, program settings are saved in the non-volatile memory. Users can change setup parameters as needed to facilitate multiple test requirements. Comprehensive laser diode protection is provided, including transient filtering, intermittent contact protection, independent current limit and power limit settings, and a slow turn on sequence. The 100 A and 150 A laser diode drivers require a 220 V NEMA L6-30 type wall plug, while the -INTL versions come with bare wires so that international customers can install a proper wall plug. The 30 A and 80 versions come with a standard IEC320 removable power cord. A single DB25 connector is conveniently used to handle all control signal input/output requirements, including the TTL input and output interlock, current monitor, and voltage monitor. A DB25 connector interlock is included in the instrument.
When it comes to selecting a laser diode mount and temperature controller to go along with your new driver Newport does all the work for you. Our newly introduced laser diode control kit (LDKIT series) bundles the diode driver, temperature controller, mount, cables, grounding wriststrap and thermal paste compound all at a great price.
A single DB25 port is conveniently used to handle all signal input/output requirements, including the TTL input and output interlock, current monitor, and voltage monitor. It simplifies the cable management tremendously, helping improve the safety level of the test lab. The following table shows the pin configuration:
Newports Models 5700-150 and 5700-100 use a powerful 3000 W power supply to provide the highest possible power output to drive the most advanced high power laser diode bars and stacks. With up to 30 V compliance voltage, while impressively supplying up to 100 Amperes of CW or pulsed current, one can even dare to stack up more than 10 of the most powerful laser diode bars available in market and carry on comprehensive tests. Multiple redundant diode protection schemes and laser protection features ensure a safe environment for the diode characterization and testing tasks.
The 5700 series is capable of both CW and Pulsed Operations. The CW operation can be controlled from the front panel, or from a host PC (via USB 2.0 interface), or from the external analog control input of the unit. The pulsed mode is accessible from a host PC. This mode supports a wide frequency range of 0.1 to 5 kHz with a pulse duration between 0.05 msec to 9.9995 seconds, giving users the full flexibility in pulse operations. The pulses can be triggered by a TTL input, too.
Comprehensive laser diode safety features are built into the instrument: Unique proprietary circuits protect the laser diode at the beginning of the slow turn-on sequence. After a three second delay, the output current slowly ramps to your preset operating level. The programmable ramp up feature allows varying step size in current increase and delays. There are also current limits: the soft limit prevents the output from running beyond the preset limit, while the hard limit actively monitors the current flowing in the circuitry and shuts off the instrument if it sees a surge in current. In addition, a safety interlock and the key switch enable/disable are available for the operator safety. The analog inputs and outputs are differential, so that the system analog ground is isolated. More over, the galvanic isolation between the instrument output connectors and chassis ensure true floating connection to the users laser diode.
The instrument is equipped with the most essential functionality, easily accessible through the simple, intuitive front panel and back panel. The normal confusing array of input/output connectors has been simplified in the Newport design, allowing an easy bundling of cables and wires through a single DB25 connector on the back panel. The front panel display is extremely easy to understand - it takes only a short amount of time to master the basics of the instrument. The simplified front panel greatly reduces the chance of accidental operation of the instrument outside the current range for the device under test. The display is designed to be easy to view from far distances and wide viewing angles.
The power of the instrument should not be discounted at all by the simple look of the instrument. Newport has years of expertise in laser diode control technologies, and the extensive remote control command set allows construction powerful sequences of test procedures, including LIV characterization. Software communication is achieved via a USB2.0 interface, providing a new, economical communication protocol in high power laser diode control. USB-to-GPIB and USBto-RS-232 adapters are widely available, thanks to the popularity of USB communication. Also, the front panel remote/local indicator clearly shows whether the instrument is controlled locally or remotely via computer.
Recognizing that precision diode laser performance testing is one of the most important tasks one would perform using a laser diode controller, we made sure that the instrument is optimized for L-I-V characterization. The laser diode driver has built-in LIV commands that allow up to 100 sets of data (laser current setpoint, measured laser current, forward voltage, and analog input voltage) to be measured, stored in the instruments memory and transferred to a host computer. With the easy to use software and industry standard Newport power meters, building a repeatable and reliable test system for high power laser diode test system has become much easier. With the programmable current ramp-up, it is simple to change the testing conditions.
Careful design consideration has resulted in a very simple electrical interface using a single DB25 pin connector. Additional benefit is the increased space available for extra cooling fans. The instrument is equipped with excellent vent design, ensuring thermally stable instrument operation under the most demanding measurement conditions.