Title

Detection And Analysis On Versatile Coding Strategies Of High Frequency Active Q-Switched Nd:Yvo4 Laser For Irradiance Of Different Targets

Keywords

Acousto-optic modulator; Coding of laser systems; High power solid state laser

Abstract

We report an active Q-switching with different coded schemes generated in the high power diode end pumped Nd:YVO4 laser (DEPSS) using two different techniques of special combination of optical choppers and acousto-optic modulator (AOM) at higher repetition rates of 100 kHz for the first time to the best of our knowledge in any practical laser target designation (LTD) systems. The highest peak power of 95.4 kW with the lowest pulse repetition frequency of 222 Hz and pulse width of 46 ns at FWHM with the pulse-to-pulse stability of ∼95% was measured at certain regime of operation. Special modulation and coding of high stable, high peak power Nd:YVO4 laser pulses at 1064 nm using the combination of different optical chopper blades were achieved. A high peak power of more than 4.84 kW with the shortest pulse width of 25 ns at FWHM has been obtained using an acousto-optic modulator (AOM) as an active Q-switched. The pulse-to-pulse stability was measured and improved to be ∼97% at high repetition rate ranges from 10 kHz to 100 kHz. The correlation between the coded laser irradiation (transmitted) and the scattered (received) laser signals for three different targets materials of sand, wood and metal using this laser designation system are examined and discussed. © 2014 Elsevier Ltd.

Publication Date

1-1-2014

Publication Title

Optics and Laser Technology

Volume

64

Number of Pages

124-132

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.optlastec.2014.05.006

Socpus ID

84902174550 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84902174550

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