Abstract

A new laser system has been developed to generate coherent deep ultraviolet (DUV) radiation at 272 nm. The DUV lasers were produced via intra-cavity frequency doubling of the ${{\rm Tb}^{3 +}}\!:\!{{\rm LiYF}_4}$ lasers emitting fundamentally at 544 nm. Continuous-wave (cw) and $Q$-switched operations were performed with a type I phase-matched $\beta - {{\rm BaB}_2}{{\rm O}_4}$ nonlinear crystal. The cw operation produces 127 mW of averaged DUV output power. Passive $Q$-switched operation was realized by using ${{\rm Co}^{2 +}}\!:\!{{\rm MgAl}_2}{{\rm O}_4}$ saturable absorbers. At an initial transmittance (excluding Fresnel reflections) of 99% at 544 nm, stable pulsed output at 272 nm with maximum single-pulse energy of 7.6 µJ and peak power of 6.1 W was obtained. Furthermore, by employing a smaller initial transmittance of 94.7%, we achieved maximum averaged DUV output power of 277 mW. The statistically averaged single-pulse DUV energy and peak power were estimated to be around 100 µJ and 320 W, respectively, which indicates great potential for this DUV laser system toward high energy and peak power.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Graphene Q-switched Tb:LiYF4 green laser

H. Chen, W. Yao, H. Uehara, and R. Yasuhara
Opt. Lett. 45(9) 2596-2599 (2020)

Passively Q-switched Er:Lu2O3 laser with MXene material Ti4N3Tx (T = F, O, or OH) as a saturable absorber

Guoqiang Li, Tao Li, Wenchao Qiao, Tianli Feng, Cenyang Feng, Jia Zhao, Guiqiu Li, and Shengzhi Zhao
Opt. Lett. 45(15) 4256-4259 (2020)

Highly efficient tunable picosecond deep ultraviolet laser system for Raman spectroscopy

Anton D. Shutov, Georgi V. Petrov, Da-Wei Wang, Marlan O. Scully, and Vladislav V. Yakovlev
Opt. Lett. 44(23) 5760-5763 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (1)

NameDescription
» Supplement 1       Supplemental document (SD)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription