Diode cathode12/20/2023 ![]() ![]() Independent isolation for critical components is a crucial laser diode driver attribute to avoid potential damage from ground loops and other unpredictable factors. In addition to meeting laser-specific current and noise requirements, a laser diode driver contributes a number of essential operational and safety functions that keep the system, and the laser in particular, operating safely and consistently: Selecting a low-noise laser diode driver will maximize its usefulness. While selecting a laser diode driver with a significantly higher output current may provide flexibility for future applications, operating in the upper portion of the driver's rating will provide the best performance in terms of accuracy, noise, and resolution.īecause lasers faithfully reproduce the input current, the noise of the laser diode driver will be reflected in the optical output noise of the laser. Your application will determine the level of accuracy, stability, and resolution required. The laser data sheet, provided by the manufacturer, will indicate the current required by the laser.Ī laser's performance is a direct reflection of the current flowing through the device. The most basic requirement for a laser diode driver is supplying current. The laser diode itself is typically defined by the end-use application and this article assumes the type of laser diode module (hereon simply referred to as a 'laser') is already known. Each of these components has specific selection criteria. Although these end-users are well informed and advanced within their own field, they could benefit from a primer that describes how to produce consistent, optimized power from their laser diode sources.Ī laser diode system consists of the laser itself, a laser diode driver, a laser mount, and, for most applications, a temperature controller. ![]() As laser technology proliferates, new end-users are coming into contact with lasers for the first time. During the last two decades, lasers have made the transition from the laboratory to production areas serving as industrial tools in hundreds of applications.
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