Tapered diode laser pumped 946 nm Nd:YAG laser

Author

Cheng, H.P.H. ; Jensen, O.B. ; Petersen, P.M. ; Andersen, P.E. ; Tidemand-Lichtenberg, P. ; Pedersen, C.

Author_Institution

DTU Fotonik, Tech. Univ. of Denmark, Roskilde, Denmark

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

We successfully implemented a 946 nm Nd:YAG laser based on a 808 nm tapered diode pump laser. The tapered diode is developed at the Ferdinand-Braun-Institute fur Hochstfrequenztechnik in Germany. Figure 2 shows the experimental setup and results of each pump source coupled into a 1.5 mm crystal and a 3 mm crystal in a cavity with 3% output coupling. We failed to achieve lasing in the 3 mm crystal with the BAL pump, but this was expected and agreed with numerical results. Absorption of the tapered pump is 84% and 63% for the 3 mm and 1.5 mm crystal respectively. In comparison with a BAL pumped laser, we show that tapered diode laser pumping potentially increase the power of 946 nm lasers by a factor of two and reduce the threshold by a factor of three.

Keywords

laser beams; laser cavity resonators; neodymium; optical pumping; solid lasers; yttrium compounds; YAG:Nd; crystal coupling; efficiency 63 percent; efficiency 84 percent; optical absorption; optical pump source; tapered diode pump laser; wavelength 946 nm; Diode lasers; Gain; Laser beams; Laser excitation; Laser theory; Physics; Power generation; Power lasers; Pump lasers; Solid lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5196599

Filename

5196599