Benchtop Hybrid 1.5 Amp Laser Diode Driver, 16 Watt TEC Controller and Butterfly Package Mount

Product Overview:

Integrated Low Noise Benchtop Laser Diode Driver + TEC Controller + Butterfly Mount
The MBL1500A hybrid laser diode control electronics and butterfly package mount instrument offers an all-inclusive, high performance solution for controlling butterfly packaged laser diodes. These controllers are an excellent choice for laboratory test applications. Key features of these instruments include a low noise laser diode current source to safely electrically bias your laser diode, an integrated TEC / temperature controller and a 14-pin butterfly package mount. They also include multiple control interface options to enable you to control all of the parameters of your laser diode. Interfaces include a touch panel front panel display, a front panel key pad, a USB with Control Software GUI / Virtual Front Panel, LabVIEW and Python code libraries.

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MULTI-LAYER LASER DIODE PROTECTION:

1. User Adjustable Current and Temperature Limits
The user can set current limit and temperature limits to ensure safe operation and a long lifetime for your laser diode.

2. ESD Protection and Power Surge Protection Circuit
An integrated crowbar circuit protects the laser diode from power surges, ESD, and damage to the laser diode from brown-out or black-out events. An integrated on-board zener diode in parallel with the bias current path protects the laser diode from damage which can occur from reverse voltage transients. These transients can occur when a standard DC power supply source is momentarily interrupted due to a black-out or brown-out power outage. Additionally, these module ship with a jumper clip that shunts the laser diode bias current path of the driver to protect the laser from ESD or static discharge when the user is installing the laser into the mounting socket. This shunt also protects the laser when the user is connecting the DC power or any other external equipment.

3. Soft-Start Current Ramp
There is an internal 500 millisecond soft-start ramp to the current set-point. This reduces the potential for thermal shock to the laser at power ON and is used to ensure good electrical contact prior to fully applying the current bias the laser diode.

4. External Over-Temperature Monitor Input
Primarily designed for integration of the module into a laser system, an additional thermistor input is provided to allow the user to monitor the temperature from an external measurement point. This can then be used to shut the laser diode off if a temperature maximum for the system is exceeded.

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Constant Current Source Laser Diode Driver
The MBL series controllers are based on high stability, low-noise current source topology to ensure optimal performance from your laser diode. They provide exceptionally low drift, allowing for consistent and repeatable results. The constant current source topology is based on a precision sense resistor which is placed in series with the laser diode. The voltage across this sense resistor is fed into a differential amplifier, which compares it to the reference voltage. If the measured current deviates from the setpoint, the feedback loop adjusts the control voltage applied to the pass transistor (MOSFET). The transistor acts as a variable resistor, dynamically adjusting to maintain the desired current. The current source automatically adjusts its output voltage to meet the laser's requirements while keeping the current constant.

Integrated TEC Controller
The integrated TEC controller with a full P.I.D. control loop prevents overheating of the laser diode and is designed to reduce thermal fluctuations. Precise thermal stabilization ensures consistent laser output without drift. The TEC control loop provides millidegree temperature stability and can quickly stabilize high heat loads to reduce the risk of damage to your laser. User adjustable upper and lower temperature limits can be programmed to protect the laser diode and the Peltier device. Additionally, TEC output current limits are user-configured to protect the Peltier device from over-drive damage.