A “Twisted-Mode” Technique for Obtaining Axially Uniform Energy Density in a Laser Cavity

Evtuhov, V.; Siegman, A. E.

doi:10.1364/ao.4.000142

Cited by 234 publications

(59 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At present, twisted-mode cavities, short cavities and ring cavities are the proven methods to obtain single-frequency lasers [5][6][7] . The first two methods are mainly applied in lowpower all-solid-state single-frequency lasers.…”

Section: Introductionmentioning

confidence: 99%

Long-pulse, single-frequency 1064 nm laser and frequency doubling

Xie²,

Lü³

et al. 2015

High Pow Laser Sci Eng

View full text Add to dashboard Cite

An all-solid-state single-frequency 1064 nm laser with a 100 µs pulse width, 500 Hz repetition rate and 700 mJ single pulse energy is designed using seed injection and a three-stage master oscillator power amplifier (MOPA) construction. Using this as a basis, research on long-pulse laser frequency doubling is carried out. By designing and optimizing the lithium triborate (LBO) crystal, the theoretically calculated maximum conversion efficiency η max reaches 68% at M 2 = 1, while η min is 33% at M 2 = 3. Generation of 212 mJ pulses of green light with a repetition rate as high as 500 Hz is obtained from a fundamental energy of 700 mJ. The experimental conversion efficiency reaches 31% and the power stability is better than ±1%.

show abstract

Section: Introductionmentioning

confidence: 99%

Long-pulse, single-frequency 1064 nm laser and frequency doubling

Xie²,

Lü³

et al. 2015

High Pow Laser Sci Eng

View full text Add to dashboard Cite

show abstract

“…This result suggests that the anisotropy of amplification is caused by the angular distribution of population inversions resulting from the saturation of the population inversions by the polarized radiation rather than the local electric field of compensating charges of Nd ions in the local D2 (orthorhombic) symmetry [1,2] because crystal axes are randomly distributed in micro-grained ceramic samples. The angular inhomogeneity depends on the orientation of the polarization plane of laser radiation from that of pump radiation and the polarization state is considered to be almost completely determined by polarization of pump radiation for the isotropic cavity [6,12].…”

Section: (A)mentioning

confidence: 99%

“…Note that relaxation-oscillation-induced sidebands appear at f B ± f 1 and f B ± f 2 as shown in the modal power spectra. The angular inhomogeneity of population inversions, i.e., vector nature, could also be attributed to the observed behavior because the spatial hole-burning along the longitudinal direction is absent in for circularly-polarized lasing eigenmodes [12]. The most conventional mirror-coated laser scheme is also considered to be suitable for micro-grained Nd:YAG ceramics to realize coherent compact light sources of high modal purity because the total output is stabilized owing to the antiphase modulation dynamics.…”

Section: (A)mentioning

confidence: 99%

Polarization properties of laser-diode-pumped micro-grained Nd:YAG ceramic lasers

Otsuka

Ohtomo

2008

Laser Phys. Lett.

View full text Add to dashboard Cite

Detailed polarization properties have been examined in laser-diode-pumped (LD-pumped) micro-grained ceramic Nd:YAG lasers in different microchip cavity configurations. Stable linearly-polarized single-frequency oscillations, whose polarization direction coincide with that of an LD pump light, were observed in an external cavity scheme. While, in the case of a thin-slice laser scheme with coated reflective ends, elliptically-polarized single-frequency operations took place in the low pump-power regime and dynamic instabilities appeared, featuring self-induced antiphase modulations among counter-rotating circularly-polarized components having slightly different lasing frequencies, with increasing the pump power. PACS: 42.55. Xi,42.55.Rz,42.25.Ja,42.60.Mi

show abstract

“…[14][15][16][17] Intracavity OR polarimetry is a third, less explored method to measure OR with increased sensitivity. [18][19][20] Bougas et al 18 have recently described a chiral cavity ring down (CCRD) polarimeter, which uses an intracavity modulated Faraday rotator to overcome the depolarizing effect of linear birefringence and translates optical rotation into a proportional frequency change. Their method seems to be less sensitive to polarization noise than FR and OH polarimetries.…”

Section: Introductionmentioning

confidence: 99%

Self-referenced, microdegree, optical rotation polarimeter for biomedical applications: an analysis

Weissman

Goldberg²

2015

J. Biomed. Opt

View full text Add to dashboard Cite

Abstract. We comprehensively analyze the performance of a type of optical rotation (OR) polarimeter, which has been designed from the outset to fit the special requirements of two major applications: general chiral detection during the separation of optical isomers by high-pressure liquid chromatography systems in the pharmaceutical industry, and monitoring of glucose in the interstitial fluid of diabetics by a fully implanted long-term optical sensor. Both very demanding applications call for an OR polarimeter that can be miniaturized while maintaining high resolution and accuracy in the microdegree range in the face of considerable noise from various sources. These two characteristics-miniature size and immunity to noise-set this polarimeter apart from the traditional OR polarimeters currently in use, which are both bulky and very susceptible to noise. The following detailed analysis demonstrates the advantages of this polarimeter and its potential as an analytic and diagnostic tool.

show abstract

A “Twisted-Mode” Technique for Obtaining Axially Uniform Energy Density in a Laser Cavity

Cited by 234 publications

References 2 publications

Long-pulse, single-frequency 1064 nm laser and frequency doubling

Long-pulse, single-frequency 1064 nm laser and frequency doubling

Polarization properties of laser-diode-pumped micro-grained Nd:YAG ceramic lasers

Self-referenced, microdegree, optical rotation polarimeter for biomedical applications: an analysis

Contact Info

Product

Resources

About