Liquid Cladding for Face-Pumped Nd:Glass Lasers

Dubé, G.; Boling, N. L.

doi:10.1364/ao.13.000699

Cited by 15 publications

(5 citation statements)

References 4 publications

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“…To prevent the generation of photons oscillating inside of the gain medium, index-matching materials are commonly used as absorptive claddings (Dubé & Boling, 1974;Guch, 1976).…”

Section: Reflections On the Edges And Faces Of A Slabmentioning

confidence: 99%

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Effect of amplified spontaneous emission and parasitic oscillations on the performance of cryogenically-cooled slab amplifiers

et al. 2013

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We present a three-dimensional code for the optimization of energy storage, heat deposition, and amplification in squareshaped laser slabs and multi-slab laser amplifiers. The influence of the slab dimensions, slab face and edge reflectivities, pump parameters, and operating temperature on amplified spontaneous emission and stored energy has been investigated. The multi-slab and single-slab configurations are compared, analyzing in detail the influence of the absorption cladding for the suppression of amplified spontaneous emission radiation.

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“…To prevent the generation of photons oscillating inside of the gain medium, index-matching materials are commonly used as absorptive claddings (Dubé & Boling, 1974;Guch, 1976).…”

Section: Reflections On the Edges And Faces Of A Slabmentioning

confidence: 99%

“…To suppress the ASE and parasitic oscillations in Nd:YAG disk lasers, solid state cladding (Glaze et al, 1974), and liquid cladding (Dubé & Boling, 1974;Guch, 1976) have been proposed. Recently, absorption cladding made of Cr:YAG was proposed for Yb:YAG (Ertel et al, 2011;Lucianetti et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of amplified spontaneous emission and parasitic oscillations on the performance of cryogenically-cooled slab amplifiers

et al. 2013

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“…Strategies to reduce ASE hinge on finding effective ways to coat or enclose the laser rod with a material that is selectively absorptive at one wavelength and transparent at another. 6,7 Currently, one common material used to combat loss of efficiency through ASE is a samarium oxide-doped glass or ceramic. 9,10 Yttrium, aluminum, and samarium are incorporated into a glass or ceramic material that is then applied either on the surface of the gain medium or doped throughout the entire material.…”

Section: ■ Introductionmentioning

confidence: 99%

Improved Pulsed Laser Operation with Engineered Nanomaterials

Latterman

Birrell

Sullivan

et al. 2016

ACS Appl. Mater. Interfaces

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The power efficiency of a diode-pumped solid state laser was improved by encasing the Nd:YAG lasing medium with gold nanorod-doped epoxy. Gold nanorods were synthesized with a specific aspect ratio tuned to absorb at the Nd:YAG lasing wavelength of 1064 nm. The surfactant-stabilized nanorods in aqueous solution were then treated with a sequential, two-step functionalization in order to improve nanorod solubility in organic solvents. This process required treating the gold nanorods with a thiol-containing polyethylene glycol (PEG) polymer followed by replacing the PEG-SH polymer with a multidentate thiol containing block copolymer synthesized using RAFT synthesis. With a multidentate polymer, the nanorods were soluble in traditional epoxies that could be used to coat the outside of Nd:YAG rods. By absorbing excess lateral 1064 nm emission, the gold nanorod coating attenuates amplified spontaneous emission (ASE), a parasitic, incoherent process that limits power produced by Q-switch laser designs. Laser power increased by nearly 2-fold with addition of the 1064 nm absorbing gold nanorod coating. Gold nanorod epoxy coatings stand out as attractive materials for attenuating ASE by avoiding the fabrication difficulties of samarium oxide ceramics and the photostability limitations of organic dyes.

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“…The threshold conditions for these modes are dependent on the residual reflection. For suppressing the parasitic oscillations, the main method used is edge cladding [1,[8][9][10][11][12][13][14]. By cladding the edges of the gain medium with some refractive index matching material, the residual reflection will be reduced and consequently the parasitic oscillation will be suppressed.…”

Section: Introductionmentioning

confidence: 99%

Parasitic oscillation suppression in high-gain solid-state amplifiers

Zhang¹,

Wei²,

Li³

et al. 2013

Laser Phys.

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A method has been proposed for suppressing parasitic oscillation by processing the gain medium edges into arrises. The mode analysis indicates that the residual reflection at the gain medium edges decreases greatly and the required index matching level and the required cladding absorbency are reduced as well. With this method, a large choice of edge cladding material is allowed, which can help with avoiding distortion and other problems caused by thermal stress.

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Liquid Cladding for Face-Pumped Nd:Glass Lasers

Cited by 15 publications

References 4 publications

Effect of amplified spontaneous emission and parasitic oscillations on the performance of cryogenically-cooled slab amplifiers

Effect of amplified spontaneous emission and parasitic oscillations on the performance of cryogenically-cooled slab amplifiers

Improved Pulsed Laser Operation with Engineered Nanomaterials

Parasitic oscillation suppression in high-gain solid-state amplifiers

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