Tag: 780nm infrared laser module

Usually a long wavelength 780nm infrared laser diode module is composed of a qualified semiconductor laser diode, qualified optic lens and cooling system inside a durable anodized aluminum alloy housing tube. It is equipped with constant electric power source supply. When it gets proper installation onto night version machine or device, after proper use of external electric power source and output power, it is able to work with ultra clear, precise and accurate infrared reference dot indication at long extending distances constantly.

Comparing with other visible laser devices, 780nm infrared laser diode module projects invisible infrared laser beam from its longer wavelength than visible optical spectrum, and only allows proper use as an accessory part. The wavelength is concentrated around 780nm and the spectral width is narrow, thus it is able to work with even pure and intense infrared laser beam emission with good monochromaticity. Owing to its good coherence, the phase relationship between light waves is stable, which can produce obvious interference phenomena, and is conducive to applications such as holographic imaging and coherent detection.
After advanced use of a qualified glass coated lens in front of laser beam aperture, featured by its small beam divergence angle of less than 1.5mard, 780nm infrared laser diode module always makes good directivity infrared laser beam emission at several miles far away, and realizes long distance infrared laser light transmission and ultra compact size infrared reference dot projection in continuous use. In addition, when it gets highly concentrated energy emission in a small area and narrow spectral range, this infrared dot gets high optical power efficiency, and produces high temperature or strong light effects on the target.
Performance advantages:
High stability. Cooperated with APC, ACC driving circuit board inside a durable anodized aluminum alloy housing tube, 780nm infrared laser keeps stable output power and electric current supply, and reduced possibility of tube burning out or damage. It gets up to less than < 0.5% power stability after constant infrared dot projection within 10 hours. Good Beam quality: 780nm infrared laser module enables high collimation IR laser light emission, a circular spot or a shaped spot, and the M² value is close to 1, which is conducive to focusing on a small size area to achieve high-precision processing or detection. Low noise: owing to low optical noise of less than 0.05% rms (20Hz-20MHz), it can improve measurement accuracy and signal quality, and has obvious advantages in applications such as weak signal detection. Applications: Biomedicine: 780nm infrared laser diode module is used for near-infrared imaging, which can penetrate deep into tissues and reduce damage to biological samples. It is also an ideal light source for optical coherence tomography (OCT), used in ophthalmic diagnosis and other medical imaging fields.
Scientific research: in spectral analysis, long wavelength of 780nm IR laser beam is used for Raman spectroscopy and absorption spectroscopy analysis to detect molecular vibrations, material composition and sample light absorption characteristics. It can also be used for laser cooling and capture technology to study the behavior of cold atoms.
Industrial field: it is suitable for micro-nano precision processing, such as high-precision cutting, drilling, etching and other processing of semiconductor materials, optical components, etc. in laser ranging, it uses its good directionality and high energy characteristics to achieve long-distance, high-precision distance measurement.
Security and monitoring: 780nm infrared laser diode module can be used as a fill light source for night vision devices, and cooperates with infrared cameras to achieve night monitoring; it can be used in infrared light curtains, beam detectors, etc. in security systems to achieve intrusion detection and alarm functions.