Diode-pumped composite ceramic Nd:YAG planar waveguide amplifier with 327  mJ output at 100  Hz repetition rate

Jiao Liu; Lin Ge; Liwen Feng; Hao Jiang; Hua Su; Tangjian Zhou; Juntao Wang; Qingsong Gao; Jiang Li

doi:doi:10.3788/COL201614.051404

Chinese Optics Letters, 2016, 14 (5): 051404, Published Online: Aug. 6, 2018

Diode-pumped composite ceramic Nd:YAG planar waveguide amplifier with 327 mJ output at 100 Hz repetition rate

Jiao Liu ^1,2,3Lin Ge ⁴Liwen Feng ^3,5Hao Jiang ^1,2,3Hua Su ⁵Tangjian Zhou ^1,2Juntao Wang ^1,2,*Qingsong Gao ^1,2Jiang Li ⁴

Author Affiliations

¹ Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621999, China

² Key Laboratory Science and Technology on High Energy Laser, China Academy of Engineering Physics, Mianyang 621999, China

³ Gradute School, China Academy of Engineering Physics, Beijing 100088, China

⁴ Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

⁵ Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

Figures & Tables

Fig. 1. Schematic of the Nd:YAG ceramic PW amplifier.

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Fig. 2. Nd:YAG PW consisting of a 100 μm-thick 1.5 at. % Nd:YAG core with 450 μm-thick YAG claddings. Heat is removed from the two largest surfaces.

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Fig. 3. Beam quality measurement of the master oscillator.

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Fig. 4. Output laser energy versus the (a) double-ended and (b) single-ended pump energy.

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Fig. 5. Temporal trace of a signal pulse at the drive current of (a) 50, (b) 53, (c) 60, and (d) 110 A when double-ended pumped. The red, green, and yellow lines represent the spontaneous emission, pump beam, and current signal of the diode stacks, respectively.

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Fig. 6. Output laser energy versus the (a) double-ended and (b) single-ended pump drive current. Departure from the expected behavior caused by PO occurred to the right of lines AB and CD.

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Fig. 7. Paths in which the PO and ASE are found.

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Fig. 8. Schematic diagram of fluorescence propagation.

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Fig. 9. Two-dimensional far-field beam intensity distribution measured after amplification.

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Jiao Liu, Lin Ge, Liwen Feng, Hao Jiang, Hua Su, Tangjian Zhou, Juntao Wang, Qingsong Gao, Jiang Li. Diode-pumped composite ceramic Nd:YAG planar waveguide amplifier with 327 mJ output at 100 Hz repetition rate[J]. Chinese Optics Letters, 2016, 14(5): 051404.

Diode-pumped composite ceramic Nd:YAG planar waveguide amplifier with 327 mJ output at 100 Hz repetition rate

Fig. 1. Schematic of the Nd:YAG ceramic PW amplifier.

Fig. 2. Nd:YAG PW consisting of a 100 μm-thick 1.5 at. % Nd:YAG core with 450 μm-thick YAG claddings. Heat is removed from the two largest surfaces.

Fig. 3. Beam quality measurement of the master oscillator.

Fig. 4. Output laser energy versus the (a) double-ended and (b) single-ended pump energy.

Fig. 5. Temporal trace of a signal pulse at the drive current of (a) 50, (b) 53, (c) 60, and (d) 110 A when double-ended pumped. The red, green, and yellow lines represent the spontaneous emission, pump beam, and current signal of the diode stacks, respectively.

Fig. 6. Output laser energy versus the (a) double-ended and (b) single-ended pump drive current. Departure from the expected behavior caused by PO occurred to the right of lines AB and CD.

Fig. 7. Paths in which the PO and ASE are found.

Fig. 8. Schematic diagram of fluorescence propagation.

Fig. 9. Two-dimensional far-field beam intensity distribution measured after amplification.

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Diode-pumped composite ceramic Nd:YAG planar waveguide amplifier with 327 mJ output at 100 Hz repetition rate

Fig. 1. Schematic of the Nd:YAG ceramic PW amplifier.

Fig. 2. Nd:YAG PW consisting of a 100 μm-thick 1.5 at. % Nd:YAG core with 450 μm-thick YAG claddings. Heat is removed from the two largest surfaces.

Fig. 3. Beam quality measurement of the master oscillator.

Fig. 4. Output laser energy versus the (a) double-ended and (b) single-ended pump energy.

Fig. 5. Temporal trace of a signal pulse at the drive current of (a) 50, (b) 53, (c) 60, and (d) 110 A when double-ended pumped. The red, green, and yellow lines represent the spontaneous emission, pump beam, and current signal of the diode stacks, respectively.

Fig. 6. Output laser energy versus the (a) double-ended and (b) single-ended pump drive current. Departure from the expected behavior caused by PO occurred to the right of lines AB and CD.

Fig. 7. Paths in which the PO and ASE are found.

Fig. 8. Schematic diagram of fluorescence propagation.

Fig. 9. Two-dimensional far-field beam intensity distribution measured after amplification.

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