Shuai Huang, Qing Wang, Meng Zhang, Chaoyong Chen, Kaixin Wang, Mingwei Gao, Chunqing Gao. A 3-kHz Er:YAG single-frequency laser with a ‘triple-reflection’ configuration on a piezoelectric actuator[J]. Chinese Physics B, 2020, 29(8):
- Chinese Physics B
- Vol. 29, Issue 8, (2020)
Fig. 1. Lay out of the novel Er:YAG laser system. PD: photo detector; PBS: polarization beam splitter; HWP: half wave plate; ISO: isolator; LD: laser diode; AOM: acousto–optic modulator; PZT: piezoelectric ceramic transducer.
Fig. 2. (a) Output power in the CW mode. (b) Pulse energy and pulse width at the PRF of 2 kHz and 3 kHz in the Q -switch operation.
Fig. 3. (a) Frequency detuning versus light intensity of seed laser with different cavity lengths. (b) Frequency detuning versus light intensity of seed laser at different output coupler transmissions. (c) The detected resonant signal at 3 kHz when scanning the length of the slave cavity.
Fig. 4. (a) The output properties of single-frequency pulse versus pump power. (b) Build-up time before and after injection-seeding at the PRFs of 3 kHz versus the pump power.
Fig. 5. (a) The pulse temporal profiles of single-frequency pulse at a PRF of 3 kHz. (b) The corresponding spectral characteristics of the single-frequency pulses. (c) The heterodyne beating signal at 3 kHz.
Fig. 6. Characteristics of 3-kHz single-frequency pulse: (a) beam quality and (b) pulse energy fluctuation.
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