1996
DOI: 10.1364/ol.21.001999
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11-W single-frequency 532-nm radiation by second-harmonic generation of a miniature Nd:YAG ring laser

Abstract: A compact and efficient source of cw single-frequency radiation at 532 nm with excellent long-term stability has been realized by external frequency doubling of a diode-pumped miniature Nd:YAG ring laser. With a semimonolithic MgO:LiNbO(3) resonator an optical-to-optical conversion efficiency of 89% from 1064 to 532 nm at an output power of 1.1 W was achieved, with a wall plug efficiency of 9%. This system represents an ideal pump source for narrow-linewidth cw optical parametric oscillators with good frequenc… Show more

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Cited by 52 publications
(17 citation statements)
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“…Since the interaction length in CW setups for conventional nonlinear crystals such as KTP is much longer than the crystal length, the energy exchange between the fundamental and second-harmonic waves (SHWs) remains raw, and therefore the SHG conversion efficiency is lower [3]. In order to overcome this problem, multiple-pass configurations are used, in which fundamental and harmonic waves pass the crystal length several times to complete the interaction [1,[3][4][5].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Since the interaction length in CW setups for conventional nonlinear crystals such as KTP is much longer than the crystal length, the energy exchange between the fundamental and second-harmonic waves (SHWs) remains raw, and therefore the SHG conversion efficiency is lower [3]. In order to overcome this problem, multiple-pass configurations are used, in which fundamental and harmonic waves pass the crystal length several times to complete the interaction [1,[3][4][5].…”
Section: Introductionmentioning
confidence: 99%
“…Many investigations regarding SHG have been performed in single-pass systems [3,7], while multiple-pass configurations, which are of great interest because of their higher efficiency [4,5,14], have been less modeled, especially when Gaussian beams are used. On the other hand, the optical absorption of beams when passing through the crystal leads to crystal warming.…”
Section: Introductionmentioning
confidence: 99%
“…(In a χ (3) medium, there is a change in the refractive index proportional to the square of the electric field.) As in SHG, THG in doubly resonant cavities has been shown to support solutions with 100% conversion efficiency, even when taking into account nonlinear frequency shifting due to SPM and XPM, as well as interesting dynamical behavior such as multistability and limit cycles (self-pulsing) [1], with lower power requirements compared to singly resonant cavities or nonresonant structures [9,50,59,66,[70][71][72][73][74][75][76][77][78][79][80][81][82]. Limit cycles have been observed in a number of other nonlinear optical systems, including doubly resonant χ (2) cavities [46,83], bistable multimode Kerr cavities with time-delayed nonlinearities [84], nonresonant distributed feedback in Braggs gratings [19], and a number of nonlinear lasing devices [85].…”
Section: Introductionmentioning
confidence: 99%
“…The generation of visible light from optically-pumped solid-state and semiconductor lasers is usually achieved via second harmonic generation (SHG), as the transition lines of most conventional doped dielectric laser crystals and the semiconductor bandgaps of the most common III-V semiconductor alloys are in the near infrared (NIR). SHG has been demonstrated for numerous diode-pumped solid-state (DPSS) lasers, both in continuous wave (CW) and pulsed [1,2] operation, fiber lasers [3], and external cavity diode lasers (ECDL) [4]. One of the main limitations to the SHG-based visible light sources is that these devices are limited by the available NIR laser lines.…”
Section: Introductionmentioning
confidence: 99%