Green Laser Diodes Key Features

• Wavelengths [nanometres (“nm”)]: 515nm, 520nm
• Output Power [milliwatt (“mW”)]: 10mW – 100mW (or 140mW in pulsed mode)
• Highly Reliable
• Package [millimetre (“mm”)]: 3.8mm, 5.6mm
• Operating Temp: 60°C
• Pin Configuration: 2M or LD Only

These Green Laser Diodes are manufactured by OSRAM, a company renowned for its innovation and focus on quality. Output powers range from 10mW up to 100mW (or 140mW in pulsed mode) and wavelengths at 515nm and 520nm. Direct emission green laser diodes can easily be built into laser diode modules by ProPhotonix.

Osram Green Laser Diodes offer high reliability and long lifetimes. Osram Laser Diodes are extremely compact and highly efficient laser diodes offering low beam divergence, long lifetime and excellent stability across a broad temperature range. Two package options are available at 3.8mm and 5.6mm. The Green Laser Diodes operate at a range of operating temperatures up to a maximum of 60°C.

Green Laser Diodes Competitive Advantage

Direct emission Green Laser Diodes offer distinct commercial and technical benefits over traditional DPSS green laser diodes and other alternatives in terms of beam quality, efficiency, stability and lifetime.

The Osram Green Laser Diodes allow system designers options to regulate the power, without the need for active temperature control. The green diodes are available with single transverse mode with near-Gaussian beam profiles, a key requirement for many projections and industrial alignment applications.

Green Laser Diodes Applications

Green Laser Diodes are ideal for a wide variety of applications including alignment and targeting for medical, industrial and defense markets. Industrial alignment, patient positioning, laser pointer, and light scattering applications will benefit from the specifications of these laser diodes. They are also ideally suited for use in pico-projector and other display applications.

Key Applications

Alignment and Targeting for Medical Defense Markets Laser Pointers Light Scattering

Why Choose ProPhotonix’ Green Laser Diodes

With more than 20 years’ experience as both a supplier and an integrator of laser diodes, ProPhotonix has the expertise to help you in selecting the right laser diode for your specific application.

Our relationships with laser diode manufacturers give us access to the latest in laser diode technology and ensure that we can deliver excellent value to you. In addition to distributing laser diodes, we use them in manufacturing our own laser modules.

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The Blue and Violet Laser Diode Range Overview

Blue and violet semiconductor laser diodes have commercial benefits, as well as technical benefits, as they offer a competitive alternative to DPSS lasers and other technologies currently available at these wavelengths.

ProPhotonix offers blue laser diodes at 450nm and 488nm with power levels up to 120mW. These blue laser diodes are manufactured by Osram, a company renowned for its innovation and focus on quality. Two package options are available at 3.8mm and 5.6mm. Osram blue laser diodes offer high reliability and long lifetimes.

Violet laser diodes are available at 404nm and 405nm with power levels from 12 to 1000mW. ProPhotonix supplies a range of violet laser diode solutions from Ushio, a company with more than 30 years of experience in the design and manufacture of laser diode technology as well as Ondax, known for its innovative wavelength stabilized laser diodes.

Violet laser diodes are available in a range of packages including 5.6mm and 9mm cans as well as a number of pin configurations to suit your application. These diodes can operate at a range of temperatures with operating temperatures for some up to a maximum of 70°C.

Blue and Violet Laser Diode Applications

Blue laser diodes can provide an ideal solution for demanding applications such as flow cytometry, medical diagnostics, DNA sequencing, bio-fluorescence, and particle measurement. Additionally, these laser diodes are suited to commercial applications including laser projection, stage lighting, biomedical applications, and metrology.

Violet laser diodes offer an excellent solution for applications such as medical and biomedical, measurement, and 3D printing.

Why ProPhotonix

With more than 20 years’ experience as both a supplier and an integrator of laser diodes, ProPhotonix has the expertise to help you in selecting the right laser diode for your specific application. Our relationships with laser diode manufacturers give us access to the latest in laser diode technology and ensure that we can deliver excellent value to you.

To learn more about the ProPhotonix laser diode range visit the blue laser diodes or violet laser diodes.

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Laser diode modules for Low level laser therapy

Low level laser therapy (LLLT), or cold laser therapy, has been used to treat a range of conditions including skin cancer and soft tissue injuries, for wound healing and nerve regeneration. Using LLLT, cells can be stimulated directly, or the light can interact with a drug injected into the body to assist in creating a reaction that aids in the patient’s treatment.

Photo sensitizers

A photo sensitizer is administered to the area to be treated in many applications of photodynamic therapy, using a precise wavelength and power of light from either an LED or a laser source to excite the photo sensitizer. This method causes a reaction in the body of the patient to treat a localized, injured area.

Direct application

There are cases where a photo sensitizer is not required, as light from a laser source can be applied directly. The light penetrates the skin and treats the soft tissue. For example, this method can be used to aid in weight loss by exciting the fat cells. The laser liquefies fat within fat cells and causes the cells to release their contents which are then naturally removed from the body. As a result of the collapsed fat cells the area where the laser was administered reduces. Again, careful selection of the laser is necessary for a precise, localized treatment, with wavelength and power configurations matched to the specific application. Furthermore, a fiber coupled solution enables a more precise and targeted treatment to be administered to a specific area.

Versatility

The varied requirements for LLLT and photodynamic therapy necessitate versatile laser modules and assemblies. ProPhotonix offers a range of configurable products, and manufactures solutions for many applications in the medical and veterinary fields. Bespoke solutions and custom designs are also available, which enables products to be carefully tailored to meet your needs and ensures that every laser therapy system achieves the most effective results.

For more information on options when specifying a laser diode module for photodynamic therapy, contact ProPhotonix at sales@prophotonix.com

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Form Factor

Medical imaging systems must be compact. In endoscopy applications, the reasons are very obvious, but a compact illuminator is also desirable in larger systems such as vascular imaging systems. Reducing the size of the illuminator can enable a reduction in the overall system footprint. This is an attractive prospect not only for the OEM but also for the end user.

Wavelength

Identifying the optimum wavelength is also a requirement in optimizing illumination for medical imaging applications. Recently, ProPhotonix worked with one of its customers to improve the overall image quality of their vascular imaging system by correctly identifying the specific infrared wavelength. The optimized wavelength solution resulted in a significant improvement in contrast and overall image quality.

To learn more, read our
Vascular Imaging case study

Intensity

Intensity is the most consistent attribute in medical imaging systems. The system will not perform to its full potential without the correct intensity. The key challenge in achieving high intensity of the illuminator is often managing the trade-off between the size limitations and heat dissipation. Chip-on- board LED technology allows for the direct contact between the LED chips and the thermally efficient substrate, providing the customer with superior thermal management. This LED packaging technology provides the capability to manufacture miniature light sources, such as those used in endoscopy, as well as very dense LED packages in a small form factor, where high intensity in a compact package is required.

Cost considerations

Solutions to technical issues are all very well, but there are also commercial issues that need to be considered. Cost is a major consideration in most medical imaging applications. It is a particularly sensitive issue where the illumination forms part of a single-use component of the system. In this case, the suppliers’ ability to manufacture in volume, and at a low cost, is a key consideration for the customer.

Due to our expertise in the design and manufacture of custom Chip-on-Board LED arrays and custom solutions, ProPhotonix is well positioned to design & manufacture the optimum solution for your medical application.

For more information download our
Custom LED Solutions Brochure

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Vascular Imaging Requirements

Illumination is a vital part of all medical vision systems and each medical imaging application will have unique illumination requirements. A customer approached us to provide a solution to their process that required LED lights for a medical vision system for their vascular imaging application.

The customer required an illuminator to highlight blood within the veins allowing for safer IV placement. The light source, in the IR spectrum, needed to be compact with high intensity. The customer chose LED lighting technology for a number of reasons:

• Wavelength

The system required a specific wavelength in the IR spectrum for the delivery of high resolution, quality images of veins. The use of Chip-on-board LED technology provides a custom wavelength to illuminate the veins allowing the system to capture a high resolution vein image.

• Intensity

A high intensity, LED light was required to illuminate through hair and skin to return the image produced by the system.

• Uniformity

The uniformity of light provided by the LED line light provides an enhanced and improved contrast image for identification of veins.

• Form Factor

The form factor of the light was a key consideration in determining the size of the overall system. The LED Line light enabled the customer to reduce the size of the system, making it lighter and more user friendly.

LED Technology

Chip-on-board LED lights for medical vision systems allow customers to exploit the benefits of LEDs including custom wavelengths, uniformity, intensity control and form factor.

For more information, read the
Vascular Imaging case study

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