What is a laser diode module?

Unlike diode pumped lasers, direct diode based laser diode module is offering even higher thermal stabilization, lower noise and higher modulation capability in real precise dot measuring work fields. It combines a laser diode, qualified optic lens and electric driving circuit board into high duration and ultra compact anodized aluminum alloy housing tube. On consideration of good thermal management, electric interface and wide range operating temperature acceptation, the genuine laser dot alignment is lasting for a quite long time, and maintaining high level of laser beam stability and high accuracy projection for a large variety of industrial and high tech fields.

Laser diode module covers wide range wavelengths of visible lasers of 405nm violet, 445nm, 450nmm, 462nm, 488nm blue laser, 515nm, 520nm, 532nm green laser, 635nm, 650nm, 660nm red laser, and visible beam infrared lasers of 780nm, 795nm, 808nm, 820nm, 830nm, 850nm, 905nm, 930nm, 940nm, 980nm, 1064nm, 1310nm and 1470nm. Featured by ultra compact structure, low production cost, minimal power usage and narrow laser beam emission, it always gets quite common and practical use while comparing with prior gas laser.

Direct diode emission laser diode module produces a laser beam through the laser diode, which is a highly focused beam of light that travels a straight line. Owing to its low laser beam divergence, there is always no laser light spread out, and also producing light of only one color.

What types of laser diode module are available at Berlin Lasers?

Both visible and visible beam laser diode modules are available with wide range output power of 5mW to 100mW, and high power range of 150mW to 500mW. Ultra compact dimension of 16mm, 18.9mm tube diameters are application for low power range lasers, and square shape tube with separate metal heat sink part are used in high power range laser device. High consideration of thermal emitting has just assured highly stable laser beam and laser dot projection, which assures up to 85% laser beam stability under daily working time of 8 to 10 hours.

Built-in APC, ACC driving circuit board makes perfect power modulation. It keeps work with constant output power and electric current supply, gets reduced possibility of tube burning out or damage, and obtains long serving lifetime of more than 8,000 hours. It protects laser diode against electrostatic discharge, wrong poling and quite higher operating voltage etc. It maintains high power stabilization and power monitoring. Besides formal CW continuous wave lasers, customized laser diode module, such as battery power supply, pulsing laser or other OEM lasers are also available.

What are applications of laser diode modules?

Laser diode module gets high concentration laser beam focusing at beam aperture part. It is often used in medical procedures, industrial purpose and lab experiments etc. It is operating easily and efficiently for high precision dot positioning and alignment.

Applications:

Typically used violet, blue, green and red laser diode modules are manufactured and designed with handheld type, provides various types of laser light source for a large variety of application fields, including precise dot laser alignment, flow cytometry, DNA sequencing, fluorescence microscopy, optogenetic, holography, interference, Raman spectroscopy etc.

Infrared laser diode modules are projecting invisible light in the infrared spectrum, not observing by human eyes. It gets more powerful IR laser light source and more cost effective price than visible lasers. It is mainly used for laser medical therapy, surgery, accelerating blood flowing or other industrial settings, monitoring, intelligence system, infrared laser communication etc.

What is the safety issue of operating laser diode module?

Users should always avoid eye exposure to laser beam aperture at close distance. Any operation of a high power laser diode module up to 50mW produces powerful laser radiation and thermal energy, which might hurt human eyes, especially retina. It is important for users to choose proper wavelength preventing laser safety goggles or glasses so as to assure easy and secured operation of lasers constantly.