Abstract

We have demonstrated high-order Hermite–Gaussian (HG) mode generation based on 2D gain distribution control edge-pumped, composite all-ceramic Yb:YAG/YAG microchip lasers using a V-type cavity. Several hundred milliwatts to several watts HGmn modes are achieved. We also generated different kinds of vortex arrays directly from the oscillator with the same power level. In addition, a more than 7 W doughnut-shape mode can be generated in the same cavity.

© 2012 Optical Society of America

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References

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2012

W. Kong and T. Taira, Appl. Phys. Lett. 100, 141105 (2012).
[CrossRef]

S. Chu, Y. Chen, K. Tsai, and K. Otsuka, Opt. Express 20, 7128 (2012).
[CrossRef]

2011

2009

2003

D. G. Grier, Nature 424, 810 (2003).
[CrossRef]

2001

Y. F. Chen, Y. P. Lan, and S. C. Wang, Appl. Phys. B 72, 167 (2001).
[CrossRef]

1997

Byer, R.

Chen, Y.

Chen, Y. F.

Y. F. Chen, Y. P. Lan, and S. C. Wang, Appl. Phys. B 72, 167 (2001).
[CrossRef]

Chu, S.

Clarkson, W.

Grier, D. G.

D. G. Grier, Nature 424, 810 (2003).
[CrossRef]

Hayes, J.

Hirose, T.

Kim, J.

Koechner, W.

W. Koechner, Solid-State Laser Engineering, 6th ed. (Springer, 2006), p. 104.

Kong, W.

W. Kong and T. Taira, Appl. Phys. Lett. 100, 141105 (2012).
[CrossRef]

Koyama, M.

Kozawa, Y.

Lan, Y. P.

Y. F. Chen, Y. P. Lan, and S. C. Wang, Appl. Phys. B 72, 167 (2001).
[CrossRef]

Mackenzie, J.

Miyamoto, K.

Okida, M.

Omatsu, T.

Otsuka, K.

Sato, S.

Shimohira, K.

Taira, T.

W. Kong and T. Taira, Appl. Phys. Lett. 100, 141105 (2012).
[CrossRef]

T. Taira, W. Tulloch, and R. Byer, Appl. Opt. 36, 1867 (1997).
[CrossRef]

Tsai, K.

Tulloch, W.

Wang, S. C.

Y. F. Chen, Y. P. Lan, and S. C. Wang, Appl. Phys. B 72, 167 (2001).
[CrossRef]

Zhan, Q.

Adv. Opt. Photon.

Appl. Opt.

Appl. Phys. B

Y. F. Chen, Y. P. Lan, and S. C. Wang, Appl. Phys. B 72, 167 (2001).
[CrossRef]

Appl. Phys. Lett.

W. Kong and T. Taira, Appl. Phys. Lett. 100, 141105 (2012).
[CrossRef]

Nature

D. G. Grier, Nature 424, 810 (2003).
[CrossRef]

Opt. Express

Opt. Lett.

Other

W. Koechner, Solid-State Laser Engineering, 6th ed. (Springer, 2006), p. 104.

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Figures (5)

Fig. 1.
Fig. 1.

Different mode-gain and mode-loss distribution aim at (a) LG00 mode, (b) HG0n modes, (c) doughnut (LG01) modes, and (d) HGmn modes. The gray color indicates nonpumped area as loss and white color indicates pumped area as gain. Different output beam pattern taken by CCD camera: (a’) 0.94 W LG00 mode beam, (b’) 0.33 W HG0,10 mode beam, (c’) 0.57 W doughnut shape beam, and (d’) 1.3 W HG44 mode beam.

Fig. 2.
Fig. 2.

(a) Schematic diagram of 9-direction edged pumped Yb:YAG ceramic microchip laser with V-type cavity. (b) Front view of microchip; the black point indicates mode area on the microchip and arrow-lines indicate the 2D scan coordinate by adjusting the cavity mirror for mode selection.

Fig. 3.
Fig. 3.

Front view of microchip laser and mode generation areas: Area-a for LG00 mode, Area-b for HG0n mode, Area-c for doughnut mode and HG11 mode, Area-d for HGmn(m,n>1) mode. The bright areas indicate the pump regions and the black area is the nonpumped regions and nondoped YAG regions.

Fig. 4.
Fig. 4.

The output power of LG00 mode, doughnut mode, and HGnn modes versus input pumping power.

Fig. 5.
Fig. 5.

(a) and (b) are intensity distributions of calculated vortex array modes. (a’) and (b’) are experimental results of output beam with the power of 500 mW. (a) and (a’) can be expressed as HG31±iHG13; (b) and (b’) can be expressed as HG11±iHG22.

Equations (2)

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R1R2exp(2Gmnl2δ)=1,
Gmn=I(x,y){ΔN(x,y)N10}σdxdyI(x,y)dxdy,

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