Comparison of optical properties between ytterbium-doped Lu2SiO5 (Yb:LSO) and ytterbium-doped Lu2Si2O7 (Yb:LPS) laser crystals

Zheng, Lihe; Zhao, Guangjun; Su, Liangbi; Xu, Jun

doi:10.1016/j.jallcom.2008.03.072

Cited by 21 publications

(11 citation statements)

References 13 publications

(13 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, ytterbium doped laser crystals have attracted considerable attention [1][2][3][4][5][6]. Trivalent ytterbium has important advantages in comparison with the widely used Nd laser in 1 m laser applications.…”

Section: Introductionmentioning

confidence: 99%

Spectral properties of Yb3+ ions in Lu3ScAl4O12 single crystal

Cheng

et al. 2010

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Spectral properties of Yb3+ ions in Lu3ScAl4O12 single crystal

Cheng

et al. 2010

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

“…Apparently, the absorption peak around 976 nm belongs to the zero-line transition between the lowest levels of 2 F 7/2 and 2 F 5/2 manifolds. The absorption coefficient of 976 nm is 4.59 cm −1 with absorption linewidth (full-wave at half-maximum) of 29 nm, which is larger than the absorption linewidth of Yb:LSO around 977 nm [16] . It is suitable for high efficiency diode-pumped operation.…”

mentioning

confidence: 77%

半导体泵浦Yb: Lu2Si2O7可调谐激光器

Liang

Zheng

et al. 2009

中国光学快报

Self Cite

View full text Add to dashboard Cite

Diode-pumped laser action of a new crystal Yb 3+ :Lu2Si2O7 (LPS) is demonstrated for the first time to our knowledge. An output power of 2.22 W at 1070 nm and a slope efficiency of 34.7% were achieved with a 5 at.-% Yb: LPS sample. The tuning can cover the range form 1034 to 1080 nm.OCIS codes: 140.3480, 140.3600, 140.3615. doi: 10.3788/COL20090711.1028.Recently, a variety of interesting results have been reported for continuous-wave (CW) or mode-locked operations based on the diode pumped Yb 3+ -doped materials [1−9] . However, a drawback of current Yb 3+ lasers is that Yb 3+ can only be operated in a quasi three-level scheme. Thermal populating of the terminal laser level causes strong re-absorption at the emission wavelengths, resulting in high laser pumping threshold power. In order to limit thermal population of the terminal level, a relatively strong crystal-field is expected. Thus, a low-symmetry crystal structure and multi-type of substitution sites are essential for ytterbium-doped host materials.Lutetium pyrosilicate crystal Lu 2 Si 2 O 7 (LPS) is a well known pyrosilicate that has been studied as a host for Ce 3+ ion with applications as phosphors and excellent scintillators [10−12] . But to the best of our knowledge, up to now laser action and CW tunable laser performance have never been reported for Yb:LPS crystals.Ytterbium-doped lutetium oxyorthosilicates Yb:Lu 2 -SiO 5 (Yb:LSO) single crystal is technologically important as a laser host material. More than 2.6-W average output with pulse durations of 260 fs at 1059 nm for Yb:LSO has been obtained [13] . Compared with Yb:LSO crystals, the advantages of Yb:LPS are the presence of effective low-symmetry monoclinic structure and its single crystallographic site, which are benefit for the low threshold and high output energy [14,15] . In this letter, we report, for the first time to our knowledge, the experimental investigation of laser diode (LD)-pumped CW and tunable Yb:LPS lasers. The output power reached 2.22 W at 1070 nm and the wavelength could be tuned from 1034 to 1080 nm.The 5×5×3 (mm) 5 at.-% Yb:LPS sample, provided by the R&D Center for Laser and Opto-Electronic Materials of Shanghai Institute of Optics and Fine Mechanics (SIOM) was grown by the Czochralski method from an inductively heated iridium crucible. Pure SiO 2, Lu 2 O 3 , and Yb 2 O 3 powders were mixed and pressed (200 MPa) into tablets. Nitrogen with purity of 5N was used as growth atmosphere. Finally, a colorless Yb:LPS crystal boule with a size up to 30 mm in length and diameter was obtained.The room-temperature absorption and fluorescence spectrum of the Yb:LPS crystal is shown in Fig. 1. The orientation of the sample used for test is (0 0 1) plane and the Yb 3+ concentration is 2.168×10 20 atom/cm 3 . We can observe that the absorption spectrum is mainly composed of three strong bands around 908, 976, and 1032 nm. Apparently, the absorption peak around 976 nm belongs to the zero-line transition between the lowest levels of 2 F 7/2 and 2 F 5/2 manifolds. The absorption coeff...

show abstract

“…[1][2][3][4] Among those Yb 3þ -doped crystals, Yb 3þ :YAG is of interest due to its good mechanical and thermal properties. 1,[5][6][7][8][9] Especially, the wide emission bandwidth of Yb 3þ :YAG enables its application in the field of ultrashort laser pulse.…”

Section: Introductionmentioning

confidence: 99%

Calculation of peak intensity for Yb3+:YAG short pulse from a ring cavity including spectral information

Huang

2013

Journal of Laser Applications

View full text Add to dashboard Cite

On the basis of the spectral information, a theoretical model is developed to calculate the peak intensity of the short pulse from an active continuous wave injected ring cavity with Yb3+:YAG amplifier. Starting from rate equation, the formula describing the short pulse is obtained. As a computable model, it takes into account the pump absorption saturation and the laser reabsorption. By this model, the peak intensities of the short pulse under different cases are analyzed.

show abstract

Comparison of optical properties between ytterbium-doped Lu2SiO5 (Yb:LSO) and ytterbium-doped Lu2Si2O7 (Yb:LPS) laser crystals

Cited by 21 publications

References 13 publications

Spectral properties of Yb3+ ions in Lu3ScAl4O12 single crystal

Spectral properties of Yb3+ ions in Lu3ScAl4O12 single crystal

半导体泵浦Yb: Lu2Si2O7可调谐激光器

Calculation of peak intensity for Yb3+:YAG short pulse from a ring cavity including spectral information

Contact Info

Product

Resources

About