Compact Integrated Green Laser Module for Watt-Level Display Applications

Gan, Yi; Lü, Yang; Xu, Qianfan; Xu, Chang‐Qing

doi:10.1109/lpt.2012.2226938

Cited by 12 publications

(9 citation statements)

References 11 publications

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“…The intracavity structures included nonlinear crystal lengths between 1 -10 mm, while the single-pass setups employed longer crystals from 10-50 mm. For example, MgO:PPLN crystals with lengths of 1, 2, 3, and 10 mm were used in an intracavity setup to achieve maximum SHG powers of 1.28, 2.8, 6.6, and 1.3 W respectively [1,[24][25][26]. However, there has been limited discussion in terms of developing a clear relationship between maximum SHG power and MgO:PPLN crystal length.…”

Section: Introductionmentioning

confidence: 99%

“…MgO:PPLN is an attractive option for the low-cost, compact watt-level lasers that our research group has worked on for laser displays and biomedical applications [1,3]. This is a result of MgO:PPLN fabrication for the production of long crystals with sufficiently large 0.5-1 mm aperture sizes relative to the beam diameters inside the laser cavity, which are typically <100 microns.…”

Section: Introductionmentioning

confidence: 99%

“…Diode-Pumped Solid-State (DPSS) lasers based on intracavity second harmonic generation (SHG) are highly desirable for a wide range of applications including laser displays [1][2][3], biomedicine (microscopy and spectroscopy) [4,5], optical communications [6], as well as material processing [7,8]. In the past, such DPSS lasers were used for single-pass second harmonic generation configurations to produce continuous-wave (CW) visible lasers [9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Systematic Study of PPLN Length Dependence in Intracavity SHG

Kashak

Flannigan

2021

Preprint

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In this paper, a systematic study of the relationship between nonlinear crystal length and intracavity second-harmonic generation (SHG) using MgO-doped periodically-poled lithium niobate (MgO:PPLN) is presented. The experimental results demonstrate a relationship between the maximum SHG power generated and the full-width at half maximum (FWHM) of the crystal’s temperature tuning curve to the length of the nonlinear optical crystal. It was shown that maximum SHG power increases rapidly with the increase of MgO:PPLN length, reaching a saturation length (~2 mm), which is much shorter than that predicted by the single-pass SHG theory. This saturation length of the MgO:PPLN crystal is almost independent on 808 nm pump power for typical powers used in continuous wave intracavity SHG lasers. In addition to this saturation effect, a broadening effect was also observed, the FWHM of the temperature tuning curve was shown to have a larger FWHM than that predicted by the single-pass SHG theory for MgO:PPLN shorter than the saturation length. This work has the benefit of allowing engineers to optimize nonlinear crystal length when developing intracavity SHG based diode-pumped solid state (DPSS) lasers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Systematic Study of PPLN Length Dependence in Intracavity SHG

Kashak

Flannigan

2021

Preprint

Self Cite

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“…Diode-Pumped Solid-State (DPSS) lasers based on intracavity second harmonic generation (SHG) are highly desirable for a wide range of applications including laser displays 1 – 3 , biomedicine (microscopy and spectroscopy) 4 , 5 , optical communications 6 , and material processing 7 , 8 . In the past, such DPSS lasers were used for single-pass second harmonic generation configurations to produce continuous-wave (CW) visible lasers 9 – 17 .…”

Section: Introductionmentioning

confidence: 99%

A systematic study of PPLN length dependence in intracavity SHG

Kashak

Flannigan

2021

Sci Rep

Self Cite

View full text Add to dashboard Cite

In this paper, a systematic study of the relationship between nonlinear crystal length and intracavity second-harmonic generation (SHG) using MgO-doped periodically-poled lithium niobate (MgO:PPLN) is presented. The experimental results demonstrate a relationship between the maximum SHG power generated and the full-width at half maximum (FWHM) of the crystal’s temperature tuning curve to the length of the nonlinear optical crystal. It was shown that maximum SHG power increases rapidly with the increase of MgO:PPLN length, reaching a saturation length (~ 2 mm), which is much shorter than that predicted by the single-pass SHG theory. This saturation length of the MgO:PPLN crystal is almost independent on 808 nm pump power for typical powers used in continuous wave intracavity SHG lasers. In addition to this saturation effect, a broadening effect was also observed, the FWHM of the temperature tuning curve was shown to have a larger FWHM than that predicted by the single-pass SHG theory for MgO:PPLN shorter than the saturation length. This work has the benefit of allowing engineers to optimize nonlinear crystal length when developing intracavity SHG based diode-pumped solid state (DPSS) lasers.

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“…Semiconductor diode lasers are widely used in a variety of applications, such as pumping [1] , telecommunication [2] , laser display [3] , industrial manufacturing [4] , and medical treatments [5] because of their high wall-plug efficiency, high reliability, low cost, and small size. The output power of a laser diode is in direct proportion to the area of the gain medium, thus, the most effective and simplest way to realize the high output power is to utilize the broad-ridge waveguide, which is able to scale the power of a near-infrared single-chip diode laser up to 25 W [6] and support the prosperity of commercial high-power diode lasers and fiber lasers [7] .…”

mentioning

confidence: 99%

Broad-area laser diodes with on-chip combined angled cavity

Wang

Zhao

et al. 2017

Chin. Opt. Lett.

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Broad-area diode lasers usually supply high output power but low lateral beam quality. In this Letter, an on-chip combined angled cavity is proposed to realize narrow lateral far field patterns and high brightness. The influence of included angles, emitting facets on output power, and beam quality are investigated. It demonstrates that this V-junction laser is able to achieve a single-lobe far field at optimal cavity length with a 3.4 times improvement in brightness compared with Fabry-Perot (F-P) cavity lasers. The excited high-order modes at a high injection level reduce the brightness, but it is still 107% higher than that of F-P lasers.

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Compact Integrated Green Laser Module for Watt-Level Display Applications

Cited by 12 publications

References 11 publications

A Systematic Study of PPLN Length Dependence in Intracavity SHG

A Systematic Study of PPLN Length Dependence in Intracavity SHG

A systematic study of PPLN length dependence in intracavity SHG

Broad-area laser diodes with on-chip combined angled cavity

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