The most mature application of short-wave infrared lasers is eye-safe laser ranging. There are many models of product equipment, which are mostly used for handheld laser ranging and vehicle-mounted fire control system laser ranging. The laser used in these products is a Raman frequency shift laser with a wavelength of 1.54 μm or an OPO laser with a wavelength of 1.57 μm.The laser used in these products is a Raman frequency shift laser with a wavelength of 1.54 μm or an OPO laser with a wavelength of 1.57 μm. The detector uses a high-sensitivity InGaAs/InP avalanche detector. The response at the peak wavelength of 1.55 μm is one order of magnitude higher than the response of the silicon avalanche detector to the 1.06 μm laser, and the minimum detectable power is one order of magnitude lower. In addition, the atmospheric attenuation of 1.54μm and 1.57μm lasers is also less than that of 1.06μm lasers. Therefore, the eye-safe laser rangefinder with a laser pulse energy of only a few to ten millijoules has a maximum range of 10 to 20 kilometers.
In recent years, with the rapid development of erbium-doped fiber laser and erbium glass laser technology and the increasing maturity of the process, supplemented by multi-pulse signal processing technology, the consumption of miniature fiber lasers and erbium glass lasers with smaller volume, quality and power will gradually replace Based on the solid-state laser with large volume, high quality and high power consumption based on the optical parametric oscillator, it has become a more ideal laser source for eye-safe laser rangefinders.
SENSUP’s LRF-1550-MR/MR eye-safe rangefinder, although the 1.55 μm fiber laser pulse peak power is only 1,000 kW, it uses a multi-pulse (ten-pulse) distance measurement system. The maximum measurement range of the 2.3 m×2.3 m standard target reaches 15 km@5 Hz, the power consumption is only 7 W, and the mass is 840 g. Figure 1 is a photo of LRF-1550-MR/MR eye-safe laser rangefinder
The picture shows the LRF-1550-MR/MR+ laser rangefinder of SENSUP
More product information ,you can come to visit our website :
https://www.erbiumtechnology.com/
E-mail: devin@erbiumtechnology.com
WhatsApp: +86-18113047438
Fax: +86-2887897578
Add: No.23, Chaoyang road, Xihe street, Longquanyi distrcit, Chengdu,610107, China.
Post time: Mar-02-2022