Green Laser Diode Module

Product Description
520nm Green diode laser module
The green laser diode is the new technic process component needs higher driving voltage. And the wavelength is in 510nm to 520nm range not the exact green color defined 530nm. There are much better stability and wide temperature operating range to green laser diode module. And the green laser diode size is small if not include the driving circuit and heat sink. The green laser diode module is the trend to replace the traditional DPSS green laser module because high performance.


Customized Lasers
In the event that none of our standard products meet your exact requirements, our customized design service provides single prototypes and small production runs in just a few days. Our engineering and Design Team have over 10 years in low power laser diode module design.



We divide a laser diode module structure into 4 main sections:
- a laser diode
- an optical lens
- a laser driver circuit
- optical and mechanical properties


1. Laser Diode:
-Main characteristics of laser diode: wavelength, output power, and operating temperature;
We can provide diode laser modules with wavelengths comprising 405nm, 450nm blue laser module,520nm green laser module, 635nm, 650nm red laser module up to 1550nm infrared laser module.

2. Optical Lens:
The following are the basic optical specifications that we need to agree upon before starting any laser module production.
- Main characteristics for the beam collimation: divergence angle, laser spot size
- Choice of the laser pattern: laser dot, laser line, laser cross line, or any kind of laser pattern achieved through using DOE (Diffractive optical elements).

Spot size: The laser spot size has a direct relationship to the distance of projection. If you can define the operating distance of your laser, the we will adjust the focus of the optical collimating lens to meet your application requirements. MXTLASER can calculate these parameters for you and let you know the possible outcome for your further evaluation.

3. Laser Driver Circuit:
The driving circuit of the laser modules can be either APC (Auto Power Control) or ACC (Auto Current Control). An APC driver controlled laser module will automatically adjust the input current in order to output a constant value of optical power. An ACC driver controlled laser module will in another way have a constant value of input current, while the output power may vary.

4. Optical and mechanical properties:The laser modules dimensions (diameter and/or length of laser module casing) can be modified according to your needs, and technical drawing can be provided for evaluation.The laser module casings can be designed into many shapes and with different materials, their surfaces can be treated for different operating environments like IP, anodization for electrical isolation etc. Some differences in a laser module casing design might help to reach different operating temperatures so as to offer the best protection for the inner components.

-Main characteristics for mechanical requirements: dimension requirements, boresight or called coaxial angel accuracy of laser module.
CertificationsLaser safty
The light emitted from these devices has been set in accordance with IEC60825. IEC60825 classifies laser products into three different categories depending on light emitted, wavelength and eye safety.

–CLASS II
“Caution”, visible laser light less than 1.0mW. Considered eye safe, normal exposure to this type of beam will not cause permanent damage to the retina.

–CLASS IIIR
“Danger”, visible laser light between 1.0mW and 5.0mW. Considered eye safe with caution. Focusing of this light into the eye could cause some damage.

–CLASS IIIB
“Danger”, infrared (IR), and high power visible lasers considered dangerous to the retina if exposed. NB: It is important to note that while complying with the above classifications, unless otherwise stated, our laser diode products are not certified and are designed solely for use in OEM products. The way in which the device is used in the final product may alter its original design classification, and it is the responsibility of the OEM to ensure compliance with the relevant standard
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