The Model 6100 is the replacement for the popular legacy 6000 laser diode driver. The 6100 Combo Laser Diode and Temperature Controller provides up to 1500 mA of current (up to 10 V compliance voltage) for laser diodes and a 32 W bipolar output (4A, 8V) for operation with thermoelectric (TE) coolers. The unit features a DSP based temperature controller for fast settling times, and exceptionally low short and long-term stability. Ultra-stable current control, great stability and high reliability for laser diodes is achieved by a combination of outstanding electronics design and quality control. The unit supports high-speed data acquisition for LIV characterization. A rich software suit (see Literature & Downloads tab) to perform LIV characterization, TEC controller tuning, monitoring/setup and LabVIEW drivers is included with this versatile unit.All pertinent parameters such as laser diode current (Ild), photodiode current (Im), forward voltage (Vf), TE current (Ite), TE voltage (Vte), temperature sensor (°C, R, Amp, or Volts) are measured and simultaneously presented on a four line alphanumeric LCD and two 7 segment displays. The menu options allows for alternative display configurations of the parameters based on the user needs and preferences. All important Laser Diode Controller parameters, such as compliance voltage, set current, current limits, modulation on/off, bandwidth, and photo diode parameters are set from the front panel or via USB. For the Temperature controller, all standard temperature sensors including thermistors, platinum RTD, AD590/592 and LM335 IC sensors are supported. Sensor calibration constants are easily programmed for direct readout in °C.To review the complete laser diode instrument offering from Newport, see Laser Diode Instrumentation Guide.
Newport is the only place you need to consider to complete your test and measurement setup. Unlike many competitors, we offer not only the control instruments, but also various temperature controlled laser diode mounts, shielded cables specifically designed for laser diodes and LEDs, laser diodes, collimating optics and opto-mechanical components. Also offered are the laser diode control kits, where we already selected the necessary equipment to drive a laser diode in a single model number. Newports experience in serving those who need to control their laser diodes is unmatched by any other company.
The performance of the Model 6100 Laser Diode and Temperature Controller is unprecedented. The laser diode controller generates less than 1.2 uA and 1.9 uA rms noise/ripple when it is driven at the mid point of the 500 mA and the 1500 mA range, respectively. The specified long term (24 hours) and short term (1 hour) stability of the temperature controller are < 0.0009 C and < 0.003 C. To prevent noise pickup, either by the output lines or the sensor inputs resulting in undesirable temperature oscillations shielded cables are also offered.
In CW (continuous wave) mode, the laser diode can be operated in one of the three different modes: constant laser diode current mode, constant photodiode current mode, and constant photodiode power mode based on the users specified photodiode responsivity. The current control can be also controlled via an external analog control though the LD I/O connector. Modulation of the laser diode current is enabled through an external Modulation Input BNC connector at the back panel of Model 6100. The bandwidth is 1.4 MHz with the High bandwidth mode on at 500 mA range.
In the pulsed mode, the user can choose any one of five different modes for a variety of applications ALWAYS ON, GATED, FREE RUN, TRIGGERED, and RETRIG. One can set up the pulse frequency and the pulse width in the ALWAYS ON and FREE RUN pulse modes. The GATED, TRIGGERED, and RETROG pulse modes utilize the TTL input signal, available throughout the Signal I/O port.
Protection features include: LD current limit, Im limit, Vcomp limit, Po limit, ITE Limit, Hi and Lo Temperature Limits, Voltage Limits, Sensor Open and TE Open Detection. Extended safety features can shut off the laser diode if the TE Cooler turns off during operation.In addition to the traditionally available laser diode protection schemes, the Model 6100 Laser Diode And Temperature Controller ties the operation of the laser current driver and the temperature controller. If the linking option is enabled, the laser diode driver will automatically shut off in case the operation of the temperature controller is terminated and thus overheating of the laser diode is avoided. Finally, during operation, the front panel controls can be disabled to prevent any changes in the output by accidental misadjustment of the control knob.
All pertinent Laser Diode and TE cooler parameters ILD, Im, Vf, ITE, VTE, temperature sensor (° C, R, Amp, or Volts) are measured and simultaneously presented on the four line alphanumeric LCD and the 7 segment displays. The menu options allows for alternative display configurations of the parameters based on the user needs and preferences. For the Laser Diode Controller, compliance voltage, set current, current limits, modulation on/off, bandwidth, and photo diode parameters can be set from the front panel or via USB interface. For the Temperature controller, all standard temperature sensors including thermistors, platinum RTD, AD590/592 and LM335 IC sensors are supported without the need for additional interface units. Sensor calibration constants are easily programmed for direct readout in °C.
Model 6100 Laser Diode and Temperature Controller is not just an instrument. The accompanying LIV measurement and temperature tuning will allow you to make serious measurements in a matter of minutes, once the setup is ready for operation. When the analog output from Newports 1918-C, 1928-C, or 1936-C Series Optical Power Meters is connected to the photodiode input at the back of the Controller, it is ready for a high speed LIV measurement, internally programmed in Model 6100. Newports Laser Diode Instruments and Optical Power Meters have been widely used for LIV characterization in the industry. The temperature tuning software displays the temperature change of the device under test as a function of the driving current and allows you for a full PID parameter control. Especially during package design, this software will quickly lead the designer to come up with the optimal thermal management design.