Generation of blue light at 426 nm by frequency doubling with a monolithic periodically poled KTiOPO_4 | Zendy

Xue Song Deng | Zendy; Jing Zhang | Zendy; Yuchi Zhang | Zendy; Gang Li | Zendy; Tiancai Zhang | Zendy

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Generation of blue light at 426 nm by frequency doubling with a monolithic periodically poled KTiOPO_4

Author(s) -

Xue Song Deng,

Jing Zhang,

Yuchi Zhang,

Gang Li,

Tiancai Zhang

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.025907

Subject(s) - optics , materials science , laser , energy conversion efficiency , continuous wave , optoelectronics , second harmonic generation , power (physics) , physics , quantum mechanics

Continuous-wave (cw) blue laser generation at 426 nm by frequency doubling with a monolithic periodically poled KTP (PPKTP) cavity is reported in this paper. Without any free mirrors, the standing-wave cavity solely consists of a monolithic PPKTP crystal, and both ends of which are spherically polished and mirror-coated. An output power of 158 mW is obtained when the pump power is 350 mW. The conversion efficiency is 45%. The dependence of the conversion efficiency on the temperature and the incident fundamental power has been discussed. Such a system is integrally stable and compact for long-time operation under temperature control. The system is much more stable than the usual servo lock system for external cavity doubling.

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