Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser

Jiajun Song; Xianghao Meng; Zhaohua Wang; Xianzhi Wang; Wenlong Tian; Jiangfeng Zhu; Shaobo Fang; Hao Teng; Zhiyi Wei

doi:doi:10.3788/COL202018.033201

Chinese Optics Letters, 2020, 18 (3): 033201, Published Online: Feb. 24, 2020

Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser Download： 887次

Jiajun Song ^1,2Xianghao Meng ^1,2Zhaohua Wang ^1,*Xianzhi Wang ^1,2Wenlong Tian ⁴Jiangfeng Zhu ⁴Shaobo Fang ¹Hao Teng ¹Zhiyi Wei ^1,2,3,**

Author Affiliations

¹ Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

² University of Chinese Academy of Sciences, Beijing 100049, China

³ Songshan Lake Materials Laboratory, Dongguan 523808, China

⁴ School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710071, China

Figures & Tables

Fig. 1. Experimental setup for the 1.13 GHz ring cavity OPO. DM1,2: dichroic mirror, HWP1,2: half-wave plate, PBS: polarizing beam splitter, L1: lens of $f = 100 mm$ , CM1, CM2: concave spherical mirrors, M1: plane mirror, OC: 3% output coupler.

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Fig. 2. (a) Output power of the signal at 720 nm versus the pump power, and (b) the normalized signal tuning range and the corresponding average power.

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Fig. 3. (a) Pulse train of the pump laser, (b) pulse train of the 1.13 GHz signal pulses, which is 15 times that of the pump laser, and (c) the RF spectrum of the 1.13 GHz signal laser at a 2.5 GHz span with a 1 MHz resolution.

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Fig. 4. (a) Measured signal pulse temporal profile at 780 nm and corresponding spectrum, and (b) measured spatial profile of a 1.13 GHz signal laser.

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Fig. 5. Red curve, phase noise PSD of the signal from 1 Hz to 10 MHz. Blue curve, phase noise PSD of the pump from 1 Hz to 10 MHz. Black curve, IPN of the signal from 1 Hz to 10 MHz.

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Table1. Comparison of the deff for different nonlinear crystals (515 nm→750 nm+1643.6 nm)

Crystal	BBO	LBO (x-y plane)	BIBO (y-z plane)
$d_{eff} (pm / V)$	2.03	0.838	2.86

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Jiajun Song, Xianghao Meng, Zhaohua Wang, Xianzhi Wang, Wenlong Tian, Jiangfeng Zhu, Shaobo Fang, Hao Teng, Zhiyi Wei. Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser[J]. Chinese Optics Letters, 2020, 18(3): 033201.

Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser Download： 887次

Fig. 1. Experimental setup for the 1.13 GHz ring cavity OPO. DM1,2: dichroic mirror, HWP1,2: half-wave plate, PBS: polarizing beam splitter, L1: lens of $f = 100 mm$ , CM1, CM2: concave spherical mirrors, M1: plane mirror, OC: 3% output coupler.

Fig. 2. (a) Output power of the signal at 720 nm versus the pump power, and (b) the normalized signal tuning range and the corresponding average power.

Fig. 3. (a) Pulse train of the pump laser, (b) pulse train of the 1.13 GHz signal pulses, which is 15 times that of the pump laser, and (c) the RF spectrum of the 1.13 GHz signal laser at a 2.5 GHz span with a 1 MHz resolution.

Fig. 4. (a) Measured signal pulse temporal profile at 780 nm and corresponding spectrum, and (b) measured spatial profile of a 1.13 GHz signal laser.

Fig. 5. Red curve, phase noise PSD of the signal from 1 Hz to 10 MHz. Blue curve, phase noise PSD of the pump from 1 Hz to 10 MHz. Black curve, IPN of the signal from 1 Hz to 10 MHz.

Table1. Comparison of the deff for different nonlinear crystals (515 nm→750 nm+1643.6 nm)

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Harmonically pump a femtosecond optical parametric oscillator to 1.13 GHz by a femtosecond 515 nm laser Download： 887次

Fig. 1. Experimental setup for the 1.13 GHz ring cavity OPO. DM1,2: dichroic mirror, HWP1,2: half-wave plate, PBS: polarizing beam splitter, L1: lens of f=100 mm, CM1, CM2: concave spherical mirrors, M1: plane mirror, OC: 3% output coupler.

Fig. 2. (a) Output power of the signal at 720 nm versus the pump power, and (b) the normalized signal tuning range and the corresponding average power.

Fig. 3. (a) Pulse train of the pump laser, (b) pulse train of the 1.13 GHz signal pulses, which is 15 times that of the pump laser, and (c) the RF spectrum of the 1.13 GHz signal laser at a 2.5 GHz span with a 1 MHz resolution.

Fig. 4. (a) Measured signal pulse temporal profile at 780 nm and corresponding spectrum, and (b) measured spatial profile of a 1.13 GHz signal laser.

Fig. 5. Red curve, phase noise PSD of the signal from 1 Hz to 10 MHz. Blue curve, phase noise PSD of the pump from 1 Hz to 10 MHz. Black curve, IPN of the signal from 1 Hz to 10 MHz.

Table1. Comparison of the deff for different nonlinear crystals (515 nm→750 nm+1643.6 nm)

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Fig. 1. Experimental setup for the 1.13 GHz ring cavity OPO. DM1,2: dichroic mirror, HWP1,2: half-wave plate, PBS: polarizing beam splitter, L1: lens of $f = 100 mm$ , CM1, CM2: concave spherical mirrors, M1: plane mirror, OC: 3% output coupler.