Abstract

We demonstrate a continuously tunable Er3+-doped fiber laser by incorporating a short-pass filter, which provides a wideband tunable fundamental-mode cutoff with high rejection efficiency (> 45 dB/cm) at long wavelengths, into a ring resonator. The tunable short-pass filter locally suppresses the gain profile of the Er3+-doped fiber at long wavelengths and makes the lasing wavelength continuously move toward short wavelengths when optical polymer is cooling down. The tuning efficiency, tuning range, signal-ASE-ratio, and FWHM linewidth of the laser are 7.65 nm/ºC, 26 nm (1569.8 ~ 1595.8 nm), 40 dB, and 0.5 nm, respectively.

© 2005 Optical Society of America

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Appl. Phys. Lett. (1)

A. Gloag, N. Langford, K. McCallion, and W. Johnstone, �??Tunable, single frequency erbium fiber laser using an overlay bandpass filter,�?? Appl. Phys. Lett. 66, 3263-3265 (1995).
[CrossRef]

IEEE J. Quantum Electron. (1)

M. Monerie, �??Propagation in doubly clad single-mode fibers,�?? IEEE J. Quantum Electron. QE-18, 535-542 (1982).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

S. Yamashita and M. Nishihara, �??Widely tunable erbium-doped fiber ring laser covering both C-band and L-band,�?? IEEE J. Sel. Top. Quantum Electron. 7, 41-43 (2001).

IEEE Photonics Technol. Lett. (3)

K. R. Sohn and J. W. Song, �??Thermooptically tunable side-polished fiber comb filter and its application,�?? IEEE Photonics Technol. Lett. 14, 1575-1577 (2002).
[CrossRef]

K. R. Sohn and K. Taek, �??Multiwavelength all-fiber ring laser using side-polished fiber comb filter and mechanically formed long-period fiber gratings,�?? IEEE Photonics Technol. Lett. 17, 309-311 (2005).
[CrossRef]

Y. W. Song, S. A. Havstad, D. Starodubov, Y. Xie A. E. Willner, J. Feinberg, �??40-nm-wide tunable fiber ring laser with single-mode operation using a highly stretchable FBG,�?? IEEE Photonics Technol. Lett. 13, 1167-1169 (2001).
[CrossRef]

J. Lightwave Technol. (1)

K. Morishita, �??Bandpass and band-rejection filters using dispersive fibers,�?? J. Lightwave Technol. 7, 816-819 (1989).
[CrossRef]

OFC???03 (1)

M. A. Arbore, Y. Zhou, H. Thiele, J. Bromage, and L. Nelson, �??S-band erbium-doped fiber amplifiers for WDM transmission between 1488 and 1508 nm,�?? in Proceedings of Optical Fiber Communication Conference OFC�??03 (Optical Society of America, Washington, D.C., 2003), paper WK2.

OFC???05 (1)

M. A. Arbore, �??Application of fundamental-mode cutoff for novel amplifiers and lasers,�?? in Proceedings of Optical Fiber Communication Conference OFC�??05 (Optical Society of America, Washington, D.C., 2005), paper OFB4

Opt. Commun. (1)

B. O. Guan, H. Y. Tam, H. L. W. Chan, X. Y. Dong, C. L. Loong, M. S. Demokan, �??Temperature-tuned erbium-doped fiber ring laser with polymer-coated fiber grating,�?? Opt. Commun. 202, 331-334 (2002).
[CrossRef]

Opt. Lett. (3)

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