Use the WTC3293 Evaluation Board to rapidly prototype a precision temperature control system using the WTC3243. The WTC is a compact, analog Proportional/Integral control loop that easily handles variable operating conditions with a stability of better than 0.0009ºC. It has been designed into electro-optical systems, airborne instrumentation, spectroscopic monitors, and medical diagnostic equipment.
Use the WLD3393 Evaluation Board to rapidly prototype a complete laser diode control system using the WLD3343 laser diode driver. The WLD3343 is excellent for raman spectroscopy, VCSELs, LIDAR, medical and dental systems.
This Basics Series video gives an introduction to thermistors, what they are, how to use them and how to calculate optimum range.
This Basics Series video gives an introduction to bandwidth, how it is defined and how to determine the 3dB bandwidth of a system.
LDTC modules are in use around the world providing trouble-free reliability in range finders, telecom laser modules, military-aerospace research and development, airborne metrology, academic research, laser diode LIV testers, and more. This video illustrates how to quickly and easily set up and operate these integrated laser diode driver and temperature controller products.
Configure Power Supply (0:56)
Configure Temperature Control (1:48)
Configure Laser System (3:58)
External Laser Setpoint (5:50)
In the most ideal form, a laser diode driver is a constant current source, linear, noiseless, and accurate, that delivers exactly the current to the laser diode needed for a particular application. The user chooses whether to keep laser diode or photodiode current constant and at what level. Then the control system drives current safely to the laser diode.
For a limited time, get a FREE PTC-CH temperature controller with the purchase of a QCL LAB Series instrument. This is the perfect combination to temperature stabilize your low-noise, narrow linewidth QCL.
Add a QCL LAB instrument to your cart. At checkout, enter FREE PTC in the order comments. That’s it — we ship you both.
To get started, go to the
QCL500 LAB,
QCL1000 LAB,
QCL1500 LAB, or
QCL2000 LAB product page.
The purpose of a temperature control system is to maintain a device at a constant temperature. Two types of thermal components are commonly used to precisely control the temperature of optics, lasers, biological samples, or other temperature sensitive devices. One is a thermoelectric. The other is a resistive heater.
Links referenced in the video:
The June issue of Laser Focus World includes a featured article from Wavelength Electronics. The article, titled Using a laser diode or quantum cascade laser? Don’t forget the electronics, goes into detail about how the electronics in the laser driver can impact laser diode and quantum cascade laser performance, safety features to keep in mind when selecting a driver, and important driver specifications. To read the article, click here.
The low noise LD15CHA – the newest addition to the Wavelength laser diode driver line – offers exceptional modulation bandwidth, and ample power for materials processing, industrial laser cutting, and laser diode bars / stacks.
The small laser diode driver delivers 15 A output current up to 28 V. It meets laser compliance requirements from 3 V with a single 5 V supply, and up to 28 V with an additional 30 V power supply. Additional models are available with 2.5 A, 5 A, and 10 A output. This product family supports A & B type laser diodes. Three photodiode current ranges are available.
