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520nm green laser diode module

laser modules given direct green light by the Optoelectronics Company

sharper, safer and brighter than red laser light

PRESS RELEASE : April 2014

The Optoelectronics Company has launched a range of direct emission 520nm green laser diode modules which offer OEMs and system integrators a realistic, cost and energy-efficient alternative to low-tech DPSS green laser modules.

Download green laser module specifications >

why is direct emission preferable?

Green DPSS (Diode-Pumped Solid State) laser modules are generally large, expensive and noisy with low thermal stability. Their green light is produced by the cumbersome method of doubling the frequency of an infrared laser.

Direct emission green laser diode modules, however, are small, robust and offer impressive power stability over a wide operating temperature up to 50 degrees C. Their high beam quality and low power consumption open up new possibilities as light sources.

sharper, safer and more visible than red laser light

Tony Pope, M.D., the Optoelectronics Company, explained, "By using a low power, direct emission green laser, it is possible to achieve the same or better visibility as a high power red laser diode. This is because the human eye is most sensitive to green light which appears brighter to the eye than red light of the same output power. This is obviously beneficial when laser safety classifications must be taken into consideration."

Because green light is more visible than red laser light of the same power output and laser safety class, the green lasers are particularly suitable for outdoor applications. Rangefinders and distance meters, such as those used by builders and surveyors, can be used over longer distances without losing beam quality and coherence.

applications include optical imaging and show lasers

With excellent beam quality, the new range of green laser modules are also ideal for optical imaging and their small package size is advantageous for very compact designs. The new technology makes high colour rendering and contrast very achievable and enables fine details to be displayed, even over large distances, which is of interest to manufacturers of show lasers. Other applications include machine vision, biotechnology and spectroscopy.

specifications

The green laser diode modules produce a high-quality elliptical beam at 520nm and offer high output stability with optical output powers of up to 35 mW

With an operating voltage of 9V DC and a broad ambient operating temperature range from -10 degrees C to +50 degrees C, they are energy-efficient, requiring typically 140mA operating current at 35mW and offer a long lifetime at continuous operation.

Robust and reliable with externally adjustable optics and self-contained drive electronics, the modules are static, surge and reverse-polarity protected and RoHS compliant. Mechanical dimensions are 53mm long and 12mm diameter and the housing material is anodised aluminium. Electrical connections are made via 300 mm external flying leads.

customised laser diode modules made to order

Custom lasing wavelengths, from 405 nm to 852 nm, output power options and laser engraving are available to your specifications. Both standard and custom configurations provide OEMs, end-users and systems integrators with complete cost-effective laser solutions.

ABOUT THE OPTOELECTRONICS COMPANY LTD

The Optoelectronics Company is a manufacturer of custom-designed and standard laser diode modules and laser diode collimators. It is also a supplier of  USHIO (ex Oclaro ex Opnext) Laser Diodes and Panasonic Aspherical Glass Lenses to industrial, medical, biomedical and defence customers throughout the UK, Europe and USA.

contact details

For more information about the Optoelectronics Company please visit our website at www.oe-company.com or contact us at: Green End Farm, Wood End Green, Henham, Hertfordshire, CM22 6AY, UK, tel: +44 (0) 1279 851851, email: info@oe-company.com.

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This news release is issued in accordance with clause 1.2j of the British codes of advertising and sales promotion and therefore cannot be subject to a transaction of any kind.