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Optica Publishing Group
  • CLEO/Europe and EQEC 2009 Conference Digest
  • (Optica Publishing Group, 2009),
  • paper CA10_2

Passively mode-locked Tm,Ho:KY(WO4)2 laser around 2μm

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Ultrashort-pulse lasers operating around 2 μm spectral region are of great interest for applications in time resolved spectroscopy, nonlinear frequency upconversion, optical communications and photomedicine. Tm3+ doped and Tm3+,Ho3+ co-doped crystalline gain media represent an attractive option for creating of diode-pumped, efficient and broadly tunable lasers around 2 μm which can be further employed for ultrashort pulse generation through the modelocking techniques. In the past, the generation of sub-100 ps pulses was reported from Tm:YAG [1] and Tm,Ho:BaY2F8 [2] lasers using an active mode-locking technique. However, no passively mode-locked Tm-doped and Tm,Ho co-doped bulk lasers have been reported to date. Here we demonstrate, for the first time to our knowledge, a Tm3+,Ho3+:KY(WO4)2 (Tm,Ho:KYW) laser passively mode-locked by using semiconductor saturable absorber mirror (SESAM).

© 2009 IEEE

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