Green Laser Diodes are available at max optical output power 80 mW and the efficiency is typically 5-6 % at present. Leading product performance and innovative packaging Thanks to their excellent beam quality, our lasers are ideally suited for the optical imaging of light. We have seen very low divergences less than 5 mrad as well. Therefore, we recommend using these lasers with constant current diode controllers. I will contact you to continue this discussion.
These lasers are manufactured such that the emitted beam is concentric with respect to the housing. We are continuing to characterize these and will update the web presentation with more information. Also, the response is highly non-linear which will cause uneven pulses. Class-3B lasers must be equipped with a key switch and a safety interlock. High-temperature range and great optical output power of blue and green InGaN lasers Compared to frequency-doubled lasers, direct green lasers have a high operating temperature range of up to 85 °C without active cooling, whereas single mode blue and green laser diodes deliver up to 80 mW. In the absence of a regulated heat sink, the pump laser current is enough to heat the laser far above 25 °C. Response from Sean at Thorlabs to busco: Thank you for your feedback.
Laser Classification Lasers are categorized into different classes according to their ability to cause eye and other damage. Please note that we do not recommend this diode for pulsed operation. All class 2 lasers and higher must display, in addition to the corresponding sign above, this triangular warning sign Hello, thank you for contacting Thorlabs. The recorded patterns from red and green lasers show clearly that the longer wavelength red is spread out more than the green. Osram Laser diodes are extremely compact and highly efficient offering low beam divergence, long lifetime and excellent stability across a broad temperature range.
The typical Optical Power vs Drive Current plot can be found on the spec sheet available on the website. I will reach out to you directly with more information. Update from Tim at Thorlabs: The beam waist is about 50um located at the surface of the crystal. For example, pass a red laser beam through a double slit. Please contact us for a quote or application support.
Efficiency is reduced outside of the operating temperature range 20 to 25 °C as a result of the temperature sensitivity of the laser crystals. Response from Jeremy at Thorlabs: The photocurrent from the monitor photodiode only represents the power of the 808nm pump laser diode and is not indicative of the optical power output of the 532nm laser. Extremely visible green laser beam just ensures the best positioning result. Thorlabs offers a range of laser that can be used to reduce the risk of accidents or injuries. High performance 532nm green laser diode module is available in type of portable pen packaging, providing the best quality and highly visible green laser beam emitting for various visual alignment applications. The reason for this is because one cannot get clean output signal if modulated. Green laser diode module 2.
The unthreaded portion of the housing can also be secured inside our Collimator Adapter. We have contacted you to discuss your application and assist you in selecting the appropriate products. Keeping this in mind, for general use, we do not recommend the use of collimation optics. As a temporary solution, we can provide a custom mounting flange. Then replace with the Green Diode Laser by simply pulling the Red Laser off the optics track and clipping the Green Laser into its place. Not only that, but their small package size is particularly beneficial to highly compact systems, such as pico projectors.
Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. Response from Tim at Thorlabs: This is correct. Please contact for more details. Given that the divergences can be very low, placing a short focal length lens can result in the beam being focused to a spot. Direct green diode lasers represent a milestone in the development of miniature projectors for mobile devices such as smart phones and cameras.
However, if the beam is refocused, the hazard may be increased and the class may be changed accordingly. You could possibly fiber couple this with the right optics and mount. If mounting by the pins instead of the M9-threaded front face, the emitted beam will be slightly off-centered from the mount. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is not possible without opening or shutting down the laser. For example, within a 5ms pulse, the output is quite noisy and erratic.