Single frequency 1083nm ytterbium fiber master oscillator power amplifier system was demonstrated. The oscillator was a linear fiber cavity with loop mirror filter and polarization controller. The loop mirror with unpumped ytterbium fiber as a narrow bandwidth filter discriminated and selected laser longitudinal modes efficiently. Spatial hole burning effect was restrained by adjusting polarization controller appropriately in the linear cavity. The amplifier was 5 m ytterbium doped fiber pumped by 976nm pigtail coupled laser diode. The linewidth of the single frequency laser was about 2 KHz. Output power up to 177 mW was produced under the launched pump power of 332 mW.

© 2005 Optical Society of America

1. M. Prevedelli, P. Cancio, G. Giusfredi, F. S. Pavone and M. Inguscio, �??Frequency control of DBR diode lasers at 1.08 micrometer and precision spectroscopy of helium,�?? Opt. Commun. 125, 231-236 (1996). [CrossRef]
2. J. M. Daniels, L. D. Schearer, M. Leduc, and P. �??J. Nacher, �??Polarizing ³He nuclei with neodymium La_1-x Nd_xMgAlO₁₉ lasers, �?? J. Opt. Soc. Am. B 2, 1133-1135 (1987).
3. S. Bordais, S. Grot, Y. Jaouen, P. Besnard and M. L. Flohic, �?? Double-clad 10-W Yb3+-doped fiber master oscillator power fiber amplifier for He3+ optical pumping�??, Appl. opt. 43, 2168-2174 (2004). [CrossRef]
4. U.Shama, C-S. Kim and J. U. Kang, �??Highly stable tunable dual-wavelength Q-switched fiber laser for DIAL applications, �?? IEEE Photonics Technol. Lett. 16, 1277-1279 (2004). [CrossRef]
5. M. Horowitz, Ron Daisy, B. Fischer and J. L. Zyskind, �?? Linewidth-narrowing mechanism in lasers by nonlinear wave mixing, �?? Opt. Lett. 19, 1406-1408 (1994).
6. H. X. Chen, F. Babin, M. Leblanc and G. W. Schinn, �??Widely tunable single-frequency erbium-doped fiber lasers, �?? IEEE Photonics Technol. Lett. 15, 185-187 (2003). [CrossRef]
7. J. Liu, J. P. Yao, J. Yao and T. H. Yeap, �??Single-longitudinal-mode multiwavelength fiber ring laser, �?? IEEE Photonics Technol. Lett. 16, 1020-1022 (2004). [CrossRef]
8. R. Paschotta, J. Nilsson, L. Reekie, A. C. Tropper, and D. C. Hanna, �??single-frequency ytterbium-doped fiber laser stabilized by spatial hole burning,�?? Opt. Lett. 22, 40-42 (1997).
9. S. A. Havstad, B. Fischer, A. E. Willner and M. G. Wickham, �?? Loop-mirror filters based on saturable-gain or -absorber gratings,�?? Opt. Lett. 24, 1466-1468 (1999).
10. S. H. Huang, G. S Qin, Y. Feng, A. Shirakawa, M. Musha and Ken-ichi Ueda, �??Single frequency fiber laser from linear cavity with loop mirror filter and dual cascaded FBGs,�?? IEEE Photonics Technol. Lett. 17, 1169-1171 (2005). [CrossRef]
11. G. P. Agrawal and M. Lax, �??Analytic evaluation of interference effects on laser output in a Fabry-Perot resonator, �?? J. Opt. Soc. Am. 71, 515-519 (1981).

Appl. opt.

• S. Bordais, S. Grot, Y. Jaouen, P. Besnard and M. L. Flohic, �?? Double-clad 10-W Yb3+-doped fiber master oscillator power fiber amplifier for He3+ optical pumping�??, Appl. opt. 43, 2168-2174 (2004). [CrossRef]

IEEE Photonics Technol. Lett.

• U.Shama, C-S. Kim and J. U. Kang, �??Highly stable tunable dual-wavelength Q-switched fiber laser for DIAL applications, �?? IEEE Photonics Technol. Lett. 16, 1277-1279 (2004). [CrossRef]
• H. X. Chen, F. Babin, M. Leblanc and G. W. Schinn, �??Widely tunable single-frequency erbium-doped fiber lasers, �?? IEEE Photonics Technol. Lett. 15, 185-187 (2003). [CrossRef]
• J. Liu, J. P. Yao, J. Yao and T. H. Yeap, �??Single-longitudinal-mode multiwavelength fiber ring laser, �?? IEEE Photonics Technol. Lett. 16, 1020-1022 (2004). [CrossRef]
• S. H. Huang, G. S Qin, Y. Feng, A. Shirakawa, M. Musha and Ken-ichi Ueda, �??Single frequency fiber laser from linear cavity with loop mirror filter and dual cascaded FBGs,�?? IEEE Photonics Technol. Lett. 17, 1169-1171 (2005). [CrossRef]

J. Opt. Soc. Am.

• G. P. Agrawal and M. Lax, �??Analytic evaluation of interference effects on laser output in a Fabry-Perot resonator, �?? J. Opt. Soc. Am. 71, 515-519 (1981).

J. Opt. Soc. Am. B

• J. M. Daniels, L. D. Schearer, M. Leduc, and P. �??J. Nacher, �??Polarizing ³He nuclei with neodymium La_1-x Nd_xMgAlO₁₉ lasers, �?? J. Opt. Soc. Am. B 2, 1133-1135 (1987).

Opt. Commun.

• M. Prevedelli, P. Cancio, G. Giusfredi, F. S. Pavone and M. Inguscio, �??Frequency control of DBR diode lasers at 1.08 micrometer and precision spectroscopy of helium,�?? Opt. Commun. 125, 231-236 (1996). [CrossRef]

Opt. Lett.

• M. Horowitz, Ron Daisy, B. Fischer and J. L. Zyskind, �?? Linewidth-narrowing mechanism in lasers by nonlinear wave mixing, �?? Opt. Lett. 19, 1406-1408 (1994).
• R. Paschotta, J. Nilsson, L. Reekie, A. C. Tropper, and D. C. Hanna, �??single-frequency ytterbium-doped fiber laser stabilized by spatial hole burning,�?? Opt. Lett. 22, 40-42 (1997).
• S. A. Havstad, B. Fischer, A. E. Willner and M. G. Wickham, �?? Loop-mirror filters based on saturable-gain or -absorber gratings,�?? Opt. Lett. 24, 1466-1468 (1999).

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