High power laser diode driver based on power converter technology

This meeting, the 10th in the series, enjoys a reputation for showcasing the most significant recent advances in both the technology and the applications of high power diode laser systems and for stimulating crosssectorial and crossdisciplinary technical exchanges. Pdf the present paper is about driving high power laser diodes. Lumina ldd high power laser diode driver is a premium series of the oem application specially designed for testing and controlling high power laser diodes. Apr 15, 2012 high power diode laser current source. These drivers are low voltage dc input power converter laser diode drivers designed to supply pulsed high current for laser diode stack loads in hand held, missile, ground vehicle, ship and airborne applications. A ganbased synchronous buck converter for high power. Although there are many different high power laser diode modules exist in the market, for simplicity in this study, a 976 nm 90w laser diode module fig. Laser diode driver pulsed laser diode driver cw laser. A ganbased synchronous buck converter for high power laser. Although semiconductor lasers were developed only a short time after the first ruby laser, their output powers were very low and. We offer both freebeam designs and fibercoupled high power laser diodes. A shunt switch is connected across the diode array. It includes multiple options for mounting laser diodes and can drive these via a discharging capacitor as shipped or directly from a power bus. Failure of a laser diode is usually defined as the point in time when the operating current required to maintain a specified output power is increased by some percentage 50% of the initial current.

Each ldx36000 series laser diode driver was designed as a current source specifically for high power laser diodes. How to build an ultrafast highpower laser driver efficient power. Rp photonics encyclopedia laser diode drivers, current. Manipulation of phaseamplitude coupling in a delaycoupled semiconductor lasers system for the high power technology pramod kumar, university of exeter uk 12. Gan laser diode driver for lidar applications youtube.

Coherent dilas manufactures highpower diode lasers from single bar components and multibar subassemblies to highbrightness, fibercoupled diode laser modules and complete turnkey high power laser diode systems from 5 watts to kilowatt range and wavelengths from 405 nm to 2300 nm. High power laser diode driver based on power converter. Rp photonics encyclopedia highpower lasers, highpowered. Previous designs for highspeed modulation of lasers are suitable for driving low power diodes less than 50 mw optical power output 1, 3, 58, 1012, 17. Stateof the art laser diode drivers designed for the emerging high power laser. Laser diodes with fiber bragg gratings are available for use in wavelength stabilization. Power efficient current driver based on negative boosting for highspeed lasers article pdf available november 2019 with 76 reads how we measure reads. Panasonics laser diodes provide wide ranges of wavelength and optical output, based on the proven design technology that has been applied to develop the dualwavelength high power laser for optical disc drive, thus meeting various requirements of customers from industry to automotive markets. Lecture 101 high power diode lasers low power lasers below tenth of mw. The most common devices are in the range of 808nm through 980nm. High power laser diode driver based on power converter technology marc t. This paper describes the design of a high speed semiconductor laser diode driver designed for driving 500 mw to 1.

Akela specializes in laser assemblies that offer the desired combination of laser with optics, thermal management, and drive electronics in packages that can be customized for the specific application or customer system. High precision lasers ck series instrument quality iq series. Ieee high power diode laser and systems conference programme. Model constitution of work modes based on highpower laser diode 109 the block diagram of constant power mode is shown in fig. What is the basis of choosing one or another technical solution. Drive electronics for high power laser diodes laser. This series supports all laser diode and monitor diode pin configurations and features a constant current or constant power mode. When the shunt switch is opened, energy stored in the inductor is suddenly delivered to the. The main problems that afflict these converters are switching losses and emi noise generation, which can be eliminated or reduced by soft.

According to the requirement of the high pulsed peak power of the laser diode ld in the long distance laser fuze, we developed a technique that adjustable high voltage drives ld to emit high power modulated pulses, and the pulsed power modulated ppm laser power supply is designed so that the fuze can work in various detective occasions. This technology is rapidly gaining traction in applications where this increased accuracy is vital, such as autonomous vehicles and augmented. The performance and rated power summary of several laser diode modules can be found in 7. The board does not include a laser diode, which must be supplied by the user. This figure applies to the laser diode used in this project. In this paper, we present a highspeed laser diode driver that has a very sensitive analog modulation input. This is actually a very inefficient way of producing a laser beam as there is significant power loss. High power thyristors and diodes for modern hvdc applications.

The pcx7500ex is an aircooled, benchtop current source designed to drive laser diodes, bars and arrays at up to 450a and 110 volts maximum. High power laser diode driver based on power converter technology abstract. High power laser diode driver based on power converter technology. Institute of information and communication technologies, bulgarian academy of. Compact size is possible due to the lowloss zero voltage switching inverter and. According to the requirement of the high pulsed peak power of the laser diodeld in the long distance laser fuze, we developed a technique that adjustable high voltage drives ld to emit highpower modulated pulses, and the pulsed power modulated ppm laser power supply is designed so that the fuze can work in various detective occasions. Compact size is possible due to the lowloss zero voltage switching inverter and incorporation of planar magnetics. This was done to reduce the costs associated with heat sinking and waste power management. Model constitution of work modes based on highpower laser diode. We offer drive electronics for the easy operation of all types of laser diodes. Ieee high power diode laser and systems conference. Conventional laser diode driver circuits commonly use discrete components for low cost. Powering laser diode systems 2017 trestman publications.

A switching element, is connected between the other end of the diode array and ground. The source generates up to 100 kw power at 940 or 980 nm with a pulse width up to 3 ms. Please redirect your searches to the new ads modern form or the classic form. It is designed to be part of the electronics of a laser projection system and it is.

The laser light sources deployed in measurement and sensor technology are. Shop high power laser diode drivers from top brands wavelength electronics, analog modules, lumina power and more get the best prices on. Schlecht, senior member, ieee abstract this paper describes the design of a high speed. Surface at const t cu block laser, pdown contact and solder layers cavity. Ami offers a complete line of laser diode driver systems and modules for military applications including direct illumination and diode pumping. Design and fabrication of sixvolt verticallystacked gaas. Dpss diodepumped solid state is a conventional laser module that emits an infrared laser diode with a wavelength of 808nm and turns it into green by crystal. Akelas line of high power laser diodes also known as diode lasers is the most complete in the industry. Conference record of the twenty fifth ieee photovoltaic specialists conference1996. Uses a microwave oven transformer mots to drive 40w or 50w. Pulse modulation of the laser diode current in the pulsed laser system is simple.

They allow the generation of kilowatts of output power, but with a poor beam quality. In many cases, a diode driver simply needs to supply a constant operation current, resulting in continuouswave operation of the laser with approximately constant optical output power. Our range of high power laser diode products continues to increase. The ldd series is ideal for high power applications where economy is important and performance cannot be compromised. The components have been designed to highest possible efficiency which leads to a low power consumption, small spectral width and low heat generation. Model constitution of work modes based on highpower laser.

Diode lasers with a continuous wave output power in excess of 0. Due to the highly nonlinear voltagecurrent characteristics of laser diodes with a low differential impedance high didv see figure 1, which also significantly depend on the junction temperature, it is. Schlecht, senior member, ieee abstract this paper describes the design of a high speed semiconductor laser diode driver designed for driving 500 mw to 1. The thermal resistances of solder layer and heatsink itself must be taken into account typical value of net thermal resistance is of order of several kw per 100mwide laser diode. This instrument provides precision pulsed current with accurate microprocessorbased digital power control. Pdf highspeed semiconductor laser diode driver with analog. Our compact, robust fiber lasers have the longest diode lifetimes, require minimal maintenance and have the lowest down time. Pulsed power modulated driving technology with high output. Ami offers a line of cw laser diode drivers for both high current and low current applications. The efficiency is about 30% 35%, the rest of the power is undesirable heat in the diode that needs to be dealt with. Highpower diode bars and diode stacks have already been mentioned above as possible pump sources for solidstate lasers. Dimitar georgiev todorov at technical university of sofia. A high power laser diode is an inexpensive, strong laser with many capabilities.

Highpower diode lasers for industry and medicine jenoptik. High power yellow green light source based on laser diode pumped yag. Patented techniques allow such products to generate narrow, highpower pulses at high repetition rates andor cw output in the smallest footprints available. Technology and applications springer series in optical sciences bachmann, friedrich, loosen, peter, poprawe, reinhart on.

High power laser diode driver operating suggestions. The driving circuits are based on the forward d 2 dcdc converter. Depending upon power supply model, monitor functions include output. This was important due to large noise on that power line. Highspeed semiconductor laser diode driver with analog. This technology is rapidly gaining traction in applications where this increased accuracy is. High peak power driver is also available with the source 2 times 500 a under 100 v. High power laser diode drivi ng circuits based on the dcdc converter, and driving algorithms, based on the one cycle c ontrol, were discusse d.

In order to keep the voltage drop at the output stage to a minimum, there is no reverse polarity protection. Some low power diodes require drive currents of only e. For high power operation pside down mounting is a must. The ldx36000 series are cwqcw laser diode drivers with current ranges from 40a to 220a qcw and 18a to 125a cw with maximum compliance voltages from 12v to 35v.

Keywords technology of measurement and control, controllable. Ldx36000 series high power laser diode drivers are designed specifically for controlling and testing high power laser diodes. Ldd high power diode laser driver series lumina power. Laser diode modules laser diode module contains a laser diode, an optic and precision drive electronics high precision lasers ck series.

Jenoptik develops and produces highpower diode lasers ranging from semiconductor material, mounted diode lasers and laser stacks to fibercoupled diode laser modules. The ldc4000 series of laser diode current controllers provide precise and stable current for driving high power laser diodes with injection currents up to 20 a. In this paper, we present a high speed laser diode driver that has a very sensitive analog modulation input. Modern power supplies are based on switching converters. While lamp pumping was originally the only viable approach for most solidstate lasers, pumping with high power laser diodes diode bars or diode stacks has become more and more widespread. These drivers offer very high current levels flowing through the output stage paths. Pdf highspeed semiconductor laser diode driver with. Laser diode efficiency versus output power for chosen laser diode 5 10 15 20 25 30 35 0,02 0,47 0,72 1,19 1,37 1,69 1,96 2,15 2,34 2,49 %. Manipulation of phaseamplitude coupling in a delaycoupled semiconductor lasers system for the high power technology pramod. Optoelectronics laser diodes, modules are in stock at digikey. High power diode lasers with wavelengths of 10nm, 1550nm, and 1625nm are ideal for fiber optic communications, whereas high power diode lasers of 1480nm function well as pumps for optical amplifiers.

We offer both freebeam designs and fibercoupled highpower laser diodes. High power laser diode driver based on power converter technology overdrive overdrive laser diode switching array array driver i od duration set thresh. Our range of highpower laser diode products continues to increase. The generation of high optical powers in lasers involves a number of technical challenges one requires one or several powerful pump sources. There are several different types of highpower lasers. Due to the increasing demand of high power thyristors for ultra high voltage direct current transmission uhvdc applications now a 6 inch silicon diameter electrical triggered thyristor ett with blocking capability of 8. The adc conversion starts with a trigger event and begins sampling in 10. Collimators made of glass or plastic are used to produce the most precise beam profile possible from the emitting laser diode. Drive electronics for high power laser diodes laser diode. We thereby cover the entire process and technology chain for laser material processing. Multiple laser diode strings can be driven by a single converter. Design and operation of an 80a, current controlled, power supply for high energy diode lasers. In order to constitute the model of constant power mode, a photodetector pd is used to transform optical power into optical current.

These turnkey high power 525nm green laser diode benchtop systems from opt lasers offer up to 2. The ldd series is a new family of oem laser diode drivers designed for the emerging high power laser diode industry. Although semiconductor lasers were developed only a short time after the first ruby laser, their output powers were very low and their operation restricted to cryogenic temperatures. Fast rise time to high currents in a load such as a laser diode array is achieved by connecting an inductor between a power supply and an end of the diode array.

Ipgs unique combination of technologies results in a highly reliable laser system that outperforms any traditional laser technology including disc, rod or co 2 lasers. Model constitution of work modes based on high power laser diode 109 the block diagram of constant power mode is shown in fig. High efficiency high power diode laser source quantel. A novel power stability drive system of semiconductor laser diode. High power laser diodes 10 watts are available at wavelengths from the near infrared through near the 2000nm region. Technology and applications springer series in optical sciences. Apr 21, 2017 gan laser diode driver for lidar applications. These drivers are low voltage dc input power converterlaser diode drivers designed to supply pulsed high current for laser diodestack loads in hand held, missile, ground vehicle, ship and airborne applications. These devices are used in applications such as materials processing, illumination, medical and sensing applications. For some applications, where beam quality is not essential, the direct use of highpower laser diodes direct diode lasers e.

The epc9126 is shipped with an epc2016c groundreferenced egan fet driven by a texas instruments ucc27611 gate driver. Laser diodes and therefore also laser diodes drivers are available in a very wide range of powers. Quarton direct green laser module vlm52053 lpa nondpss. The ldc4000 series of laser diode current controllers provide precise and stable current for driving highpower laser diodes with injection currents up to 20 a. Panasonics laser diodes provide wide ranges of wavelength and optical output, based on the proven design technology that has been applied to develop the dualwavelength highpower laser for optical disc drive, thus meeting various requirements of customers from industry to automotive markets. Ixys corporation announced today the introduction of the pcx7500ex highpower laser diode drivercurrent source by its ixys colorado division. The laser diode and light fibers are designed for our light triggered thyristors ltt with disc. Pdf power efficient current driver based on negative. The current laser diode technology is based on combining multiple emitter semiconductor chips.