Monolithic fluoride-fiber laser at 1480 nm using fiber Bragg gratings.

We report what we believe is the first monolithic fluoride-fiber laser making use of fiber Bragg gratings written directly in the doped fluoride-fiber core. The Tm(3+):ZBLAN fiber laser is upconversion pumped at 1070 nm and emits at 1480 nm. Using two different all-fiber cavities, we observed a threshold as low as 75 mW and a conversion efficiency of up to 40% with respect to launched pump power.

[1]  Y. Miyajima,et al.  1-W CW Tm-doped fluoride fibre laser at 1.47 mu m , 1993 .

[2]  J Schneider,et al.  Characterization of a Ho(3+)-doped fluoride fiber laser with a 3.9-mum emission wavelength. , 1997, Applied optics.

[3]  Yamamoto Takashi,et al.  Upconversion pumped thulium-doped fluoride fiber amplifier and laser operating at 1.47 /spl mu/m , 1995 .

[4]  R. Percival,et al.  Highly efficient 1.064 µm upconversion pumped 1.47 µm thulium doped fluoride fibre laser , 1994 .

[5]  T. Graf,et al.  1.47 µm Tm3+: ZBLAN fibre laser pumped at 1.064 µm , 2003 .

[6]  Jens Limpert,et al.  Erbium fiber laser based on intracore femtosecond-written fiber Bragg grating. , 2006, Optics letters.

[7]  James Gary Eden,et al.  Ultraviolet (381 nm), room temperature laser in neodymium-doped fluorozirconate fibre , 1994 .

[8]  T. Lasser,et al.  UV-induced index changes in Undoped Fluoride glass , 2005, Journal of Lightwave Technology.

[9]  Xiushan Zhu,et al.  10-W-level diode-pumped compact 2.78 μm ZBLAN fiber laser , 2007 .

[10]  T. Komukai,et al.  Efficient upconversion pumping at 1.064 mu m Tm/sup 3+/-doped fluoride fibre laser operating around 1.47 mu m , 1992 .

[11]  I. Aggarwal,et al.  An efficient 1.46 mu m thulium fiber laser via a cascade process , 1993 .

[12]  K. Miura,et al.  Writing waveguides in glass with a femtosecond laser. , 1996, Optics letters.

[13]  P Niay,et al.  Ultraviolet-induced permanent Bragg gratings in cerium-doped ZBLAN glasses or optical fibers. , 1994, Optics letters.

[14]  R. Vallée,et al.  Real-Time Photobleaching and Stable Operation at 204 mW of a Tm : ZBLAN Blue Fiber Laser , 2007, IEEE Photonics Technology Letters.

[15]  Y Sheng,et al.  Bragg gratings photoinduced in ZBLAN fibers by femtosecond pulses at 800 nm. , 2007, Optics letters.