Highly efficient double-ended diffusion-bonded Nd:YVO4 1525-nm eye-safe Raman laser under direct 880-nm pumping

Chen, X. H.; Zhang, X. Y.; Wang, Q. P.; Li, P.; Liu, Z. J.; Zhang, Cong; Li, L.; Zhang, H. J.

doi:10.1007/s00340-011-4724-8

Cited by 22 publications

(7 citation statements)

References 17 publications

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“…Lasers at wavelengths within the so‐called “eye‐safe” or retina‐safe spectral region between 1.4 and 1.8 µm are widely used for applications including laser range finding, scanning lidar and remote sensing. Current methods for eye‐safe generation include optical parametric oscillators (OPOs) , solid‐state lasers such as resonantly‐pumped Er:YAG , and those that employ a gas or solid‐state Raman shifter . Further improvements in terms of brightness and pulse rates would allow greater on‐target powers and scan speeds for these applications.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous brightness enhancement and wavelength conversion to the eye‐safe region in a high‐power diamond Raman laser

McKay

Kitzler

Mildren

2014

Laser & Photonics Reviews

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Brightness enhancement in an external cavity diamond Raman laser designed for high power conversion of a neodymium (1064 nm) laser to the eye‐safe spectral region is reported. Using a multimode input beam pulsed at 36 kHz pulse repetition frequency, 16.2 W with 40% overall conversion efficiency was obtained at the second Stokes wavelength of 1485 nm. The output beam had a quality factor of M2=1.17±0.08 which is a factor of 2.7 times lower than that of the input beam, resulting in a higher overall brightness. The output power, brightness, and brightness enhancement obtained represent significant advances in performance for Raman lasers as well as other competing kHz‐pulsed eye‐safe technologies.

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Section: Introductionmentioning

confidence: 99%

Simultaneous brightness enhancement and wavelength conversion to the eye‐safe region in a high‐power diamond Raman laser

McKay

Kitzler

Mildren

2014

Laser & Photonics Reviews

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“…The eye-safe lasers around 1.5 µm are of great importance for such kinds of potential applications, such as optical communications, optical sensing, lidar, and medicine [1][2][3]. Usually, only limited wavelengths can be generated directly by the gain media due to their fixed energy-level structures.…”

Section: Introductionmentioning

confidence: 99%

Diode-Pumped Actively Q-Switched Nd:YVO4/RTP Intracavity Raman Laser at 1.49 µm

et al. 2019

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For the first time, a diode-pumped actively Q-switched Nd:YVO4/RbTiOPO4 (RTP) intracavity Raman laser at 1.49 µm was demonstrated to the best of our knowledge. Experimentally, a dual-end diffusion-bonded YVO4–Nd:YVO4–YVO4 crystal was employed as the laser medium to generate 1.34 µm laser radiation, and an RTP crystal as the Raman medium to enable the frequency conversion, by which radiation at 1.49 µm was achieved successfully. With an incident pump power of 10.4 W, an average output power of 502 mW was obtained at a pulse repetition rate of 15 kHz, corresponding to a conversion efficiency of 4.8%.

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“…Stimulated Raman scattering (SRS) is one of the most important nonlinear optical (NLO) phenomena [1][2][3], and its characteristics and applications have been investigated for many solid state media such as YVO 4 [4,5], SrWO 4 [6,7], BaWO 4 [8][9][10], KGd(WO 4 ) 2 [11], Ba 2 TiSi 2 O 8 [12] and PbWO 4 [13,14]. In particular, new spectra lasers can be achieved by combining second-and third-order NLO frequency conversions.…”

Section: Introductionmentioning

confidence: 99%

Cascaded longitudinal stimulated Raman scattering and the frequency doubling process of potassium dihydrogen phosphate crystals

Wu¹,

Wang

Ren

et al. 2017

J. Phys.: Condens. Matter

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Cascaded longitudinal stimulated Raman scattering (LSRS) and the frequency doubling process are reported for the first time. When potassium dihydrogen phosphate (KDP) crystals are used as the type I and type II frequency doublers of picosecond, focused 1064 nm laser pulses, strong LSRS effects are observed. Three new laser spectrum lines appeared successively, i.e. at 558.9, 588.9 and 622.1 nm, and were excited by the frequency doubling laser at 532 nm. Second- and third-order nonlinear optical frequency conversions were achieved in a single KDP crystal. The near-infrared light was thus converted into a new spectra laser spanning the green-to-red spectral range.

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Highly efficient double-ended diffusion-bonded Nd:YVO4 1525-nm eye-safe Raman laser under direct 880-nm pumping

Cited by 22 publications

References 17 publications

Simultaneous brightness enhancement and wavelength conversion to the eye‐safe region in a high‐power diamond Raman laser

Simultaneous brightness enhancement and wavelength conversion to the eye‐safe region in a high‐power diamond Raman laser

Diode-Pumped Actively Q-Switched Nd:YVO4/RTP Intracavity Raman Laser at 1.49 µm

Cascaded longitudinal stimulated Raman scattering and the frequency doubling process of potassium dihydrogen phosphate crystals

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