Widely tunable yellow-green lasers based on the self-frequency-doubling material Yb:YAB

Peter Dekker; Phillip A. Burns; Judith M. Dawes; James A. Piper; Jing Li; Xiaobo Hu; Jiyang Wang

doi:10.1364/JOSAB.20.000706

Widely tunable yellow-green lasers based on the self-frequency-doubling material Yb:YAB

Peter Dekker, Phillip A. Burns, Judith M. Dawes, James A. Piper, Jing Li, Xiaobo Hu, and Jiyang Wang

Journal of the Optical Society of America B
Vol. 20,
Issue 4,
pp. 706-712
(2003)
•https://doi.org/10.1364/JOSAB.20.000706

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Peter Dekker, Phillip A. Burns, Judith M. Dawes, James A. Piper, Jing Li, Xiaobo Hu, and Jiyang Wang, "Widely tunable yellow-green lasers based on the self-frequency-doubling material Yb:YAB," J. Opt. Soc. Am. B 20, 706-712 (2003)

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Abstract

We report widely tunable infrared and self-frequency-doubled operation in ytterbium-doped yttrium aluminum borate (Yb:YAB). In the infrared, tuning has been obtained between 1016 and 1090 nm and also near 1125 nm. A tuning range at the 1-W level of 55 nm has been obtained. As a self-frequency-doubled laser, green output powers of 65 mW at 510 nm and over 450 mW at 530 nm have been demonstrated with a maximum diode-to-green conversion efficiency of 5%. Yb:YAB has been shown to cover the wavelengths of the copper-vapor (510 nm), argon-ion (514 nm), doubled Nd:YAG (532 nm), green HeNe (543 nm), and the doubled $Yb : {Sr}_{5} ({VO}_{4})_{3} F$ laser in the visible (∼565 nm).

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Property	Wavelength, nm
Property	1040	1090	1125
Emission cross section $(\times 10^{- 20} {cm}^{2})$	1.41	0.088	0.023
Fractional population of lower laser level $(\times 10^{- 3})$	28	3.5	0.9
Predicted threshold, W	1.2	2.5	8.9
Measured threshold, W	∼1.5	∼2.7	∼2.9 coupled cavity ∼6.1 hemispherical cavity

Property	Material
Property	Yb:YAB	Yb:YAG[10,17 ]^a	Yb:GdCOB[5 ]	Yb:BOYS[18 ]	Yb:SVAP[19,20 ]
Emission bandwidth,^b nm	20–30^b	9–18	44–50^b	60^b	39@1117
Peak emission λ, nm	1038	1030	1032	1066	1044
Emission cross section, $(\times 10^{- 20} {cm}^{2})$	0.8	2–3	0.46	0.2	1.3
Min–max emission, nm	1016–10901110–1150	1006–1087[17 ]1024–1109[10 ]	1013–1115[6 ]	1017–1086	10441102–1132
Maximum tuned power, W; Range, nm	2.11022–1080	141018–1054	2.11018–1086	1.91017–1086	0.31102–1132
Tuning range, 1-W level, nm	1020–1075	1016–1060[17 ]	1028–1058[5 ]	1028–1076^c	—
Efficiency, % at λ, nm: maximum pump-to-laser	33% 10401–5% 1125	40% 1032	36% 1043	30% 1060^c	31% 104417% 1120
Mode-locked pulsewidth, fs	197[23 ]	340[26 ]	90[24 ]	69[25 ]	—

Property	Wavelength, nm
Property	1040	1090	1125
Emission cross section $(\times 10^{- 20} {cm}^{2})$	1.41	0.088	0.023
Fractional population of lower laser level $(\times 10^{- 3})$	28	3.5	0.9
Predicted threshold, W	1.2	2.5	8.9
Measured threshold, W	∼1.5	∼2.7	∼2.9 coupled cavity ∼6.1 hemispherical cavity

Property	Material
Property	Yb:YAB	Yb:YAG[10,17 ]^a	Yb:GdCOB[5 ]	Yb:BOYS[18 ]	Yb:SVAP[19,20 ]
Emission bandwidth,^b nm	20–30^b	9–18	44–50^b	60^b	39@1117
Peak emission λ, nm	1038	1030	1032	1066	1044
Emission cross section, $(\times 10^{- 20} {cm}^{2})$	0.8	2–3	0.46	0.2	1.3
Min–max emission, nm	1016–10901110–1150	1006–1087[17 ]1024–1109[10 ]	1013–1115[6 ]	1017–1086	10441102–1132
Maximum tuned power, W; Range, nm	2.11022–1080	141018–1054	2.11018–1086	1.91017–1086	0.31102–1132
Tuning range, 1-W level, nm	1020–1075	1016–1060[17 ]	1028–1058[5 ]	1028–1076^c	—
Efficiency, % at λ, nm: maximum pump-to-laser	33% 10401–5% 1125	40% 1032	36% 1043	30% 1060^c	31% 104417% 1120
Mode-locked pulsewidth, fs	197[23 ]	340[26 ]	90[24 ]	69[25 ]	—

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