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  • Received: Apr. 18, 2020

    Accepted: May. 15, 2020

    Posted: Jul. 24, 2020

    Published Online: Jul. 27, 2020

    The Author Email: Jacek Kwiatkowski (jacek.kwiatkowski@wat.edu.pl)

    DOI: 10.3788/COL202018.091401

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    Jacek Kwiatkowski. Power and spectral analyses in diode-pumped c-cut Pbnm Tm:YAP laser[J]. Chinese Optics Letters, 2020, 18(9): 091401

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Experimental setup of the diode-pumped Tm:YAP laser.

Fig. 1. Experimental setup of the diode-pumped Tm:YAP laser.

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Output powers of the Tm:YAP laser under different output mirror transmissions as a function of the absorbed pump power for a radius of curvature of (a) 100 mm, (b) 200 mm, (c) 300 mm, and (d) 400 mm. The results of a linear fit and the calculated slope efficiencies are presented in the graphs.

Fig. 2. Output powers of the Tm:YAP laser under different output mirror transmissions as a function of the absorbed pump power for a radius of curvature of (a) 100 mm, (b) 200 mm, (c) 300 mm, and (d) 400 mm. The results of a linear fit and the calculated slope efficiencies are presented in the graphs.

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Output spectra from the Tm:YAP laser in CW operation under different output mirror transmissions for a radius of curvature of (a) 100 mm, (b) 200 mm, (c) 300 mm, and (d) 400 mm.

Fig. 3. Output spectra from the Tm:YAP laser in CW operation under different output mirror transmissions for a radius of curvature of (a) 100 mm, (b) 200 mm, (c) 300 mm, and (d) 400 mm.

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Output spectrum from the Tm:YAP laser for the output mirror transmission of 19.5% and the radius of curvature of 100 mm shown on a logarithmic scale.

Fig. 4. Output spectrum from the Tm:YAP laser for the output mirror transmission of 19.5% and the radius of curvature of 100 mm shown on a logarithmic scale.

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Measurement results of the Tm:YAP laser beam quality for the OC of 11.0% transmittance.

Fig. 5. Measurement results of the Tm:YAP laser beam quality for the OC of 11.0% transmittance.

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Measurement results of the Tm:YAP laser beam quality for the OC of 43.7% transmittance.

Fig. 6. Measurement results of the Tm:YAP laser beam quality for the OC of 43.7% transmittance.

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Diode-pumped Tm:YAP laser generated beam spatial distribution recorded for the output coupler transmittance of 11.0%.

Fig. 7. Diode-pumped Tm:YAP laser generated beam spatial distribution recorded for the output coupler transmittance of 11.0%.

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