Abstract

A tunable multiwavelength fiber laser based on double Sagnac loops is proposed and demonstrated. Comb filter characteristics of single and double Sagnac loops are analyzed by Jones matrix. Simulated results show that there are better tunability and controllability with double loops than with a single loop, and this also has been confirmed by experimental results. By adjusting the polarization controller and the length of the polarization maintaining fiber the wavelength range, wavelength spacing, and laser linewidth can be tuned. Experimental results indicate that the linewidth of the multiwavelength fiber laser was 0.0187 nm and the optical sidemode suppression ratio was 50 dB.

© 2012 Optical Society of America

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2011 (5)

2010 (3)

2009 (3)

2008 (3)

2007 (1)

2006 (1)

Al-Mansoori, M. H.

Chen, L. R.

Chen, T.

Chen, Z.

Dagel, D.

Dong, X.

Dorsinville, R.

Dutta, N. K.

Fresi, F.

González-García, A.

A. González-García, O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, and E. A. Kuzin, “Switchable and tuneable multi-savelength Er-doped fibre ring laser using Sagnac filters,” Laser Phys. 20, 720–725 (2010).
[CrossRef]

Grajales-Coutiño, R.

A. González-García, O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, and E. A. Kuzin, “Switchable and tuneable multi-savelength Er-doped fibre ring laser using Sagnac filters,” Laser Phys. 20, 720–725 (2010).
[CrossRef]

Han, Y.-G.

Hitam, S.

Huang, T.

Ibarra-Escamilla, B.

A. González-García, O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, and E. A. Kuzin, “Switchable and tuneable multi-savelength Er-doped fibre ring laser using Sagnac filters,” Laser Phys. 20, 720–725 (2010).
[CrossRef]

Ismail, A.

Jian, S.

Joyo, A.

Jun, C. S.

Kai, G.

Keller, U.

Kim, B. Y.

Kouar, M.

Kraetschmer, T.

Kuzin, E. A.

A. González-García, O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, and E. A. Kuzin, “Switchable and tuneable multi-savelength Er-doped fibre ring laser using Sagnac filters,” Laser Phys. 20, 720–725 (2010).
[CrossRef]

Lee, J. H.

Li, J.

Liu, L.

Liu, Y.-G.

Luo, A.-P.

Luo, Z.-C.

Ma, S.

Madamopoulos, N.

Mahdi, M. A.

Mahdi1, M. A.

Mirza, M. A.

Oehler, A. E. H.

Peng, J.

Poti, L.

Pottiez, O.

A. González-García, O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, and E. A. Kuzin, “Switchable and tuneable multi-savelength Er-doped fibre ring laser using Sagnac filters,” Laser Phys. 20, 720–725 (2010).
[CrossRef]

Sanders, S. T.

Shee, Y. G.

Shum, P.

Stewart, G.

Sun, J.

Tang, J.

Ummy, M. A.

Wang, J.

Weingarten, K. J.

Xu, W.-C.

Yuan, S.

Zeller, S. C.

Zhao, L.

Zheng, K.

Zhou, Y.

Appl. Opt. (4)

Laser Phys. (1)

A. González-García, O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, and E. A. Kuzin, “Switchable and tuneable multi-savelength Er-doped fibre ring laser using Sagnac filters,” Laser Phys. 20, 720–725 (2010).
[CrossRef]

Opt. Express (7)

Y.-G. Liu, X. Dong, P. Shum, S. Yuan, G. Kai, and X. Dong, “Stable room-temperature multi-wavelength lasing realization in ordinary erbium-doped fiber loop lasers,” Opt. Express 14, 9293–9298 (2006).
[CrossRef]

Z. Chen, S. Ma, and N. K. Dutta, “Multiwavelength fiber ring laser based on a semiconductor and fiber gain medium,” Opt. Express 17, 1234–1239 (2009).
[CrossRef]

J. Wang, K. Zheng, J. Peng, L. Liu, J. Li, and S. Jian, “Theory and experiment of a fiber loop mirror filter of two-stage polarization-maintaining fibers and polarization controllers for multiwavelength fiber ring laser,” Opt. Express 17, 10573–10583 (2009).
[CrossRef]

J. Tang, J. Sun, L. Zhao, T. Chen, T. Huang, and Y. Zhou, “Tunable multiwavelength generation based on Brillouin-erbium comb fiber laser assisted by multiple four-wave mixing processes,” Opt. Express 19, 14682–14689 (2011).
[CrossRef]

Y. G. Shee, M. H. Al-Mansoori, A. Ismail, S. Hitam, and M. A. Mahdi1, “Multiwavelength Brillouin-erbium fiber laser with double-Brillouin-frequency spacing,” Opt. Express 19, 1699–1706 (2011).
[CrossRef]

M. A. Ummy, N. Madamopoulos, A. Joyo, M. Kouar, and R. Dorsinville, “Tunable multi-wavelength SOA based linear cavity dual-output port fiber laser using Lyot–Sagnac loop mirror,” Opt. Express 19, 3202–3211 (2011).
[CrossRef]

C. S. Jun and B. Y. Kim, “Mode-locking and Q-switching in multi-wavelength fiber ring laser using low frequency phase modulation,” Opt. Express 19, 6290–6295 (2011).
[CrossRef]

Opt. Lett. (4)

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Figures (8)

Fig. 1.
Fig. 1.

(a) Tunable multiwavelength fiber laser based on a double Sagnac HiBi fiber loop interferometer. (b) Sagnac interference loop.

Fig. 2.
Fig. 2.

Transmissivity spectrum of single Sagnac loop.

Fig. 3.
Fig. 3.

Transmissivity spectrum of double Sagnac loop. (a) Tunable filter period without changing filter bandwidth. (b) Tunable filter bandwidth without changing filter period.

Fig. 4.
Fig. 4.

Output optical spectrum of the multi-wavelength fiber laser. (a) Three wavelength laser spectrum. (b) Repeated scans of the output spectrum in 10 min.

Fig. 5.
Fig. 5.

Output multiwavelength laser spectrum. (a) Short wavelength band. (b) Long wavelength band. (c) Whole C-band.

Fig. 6.
Fig. 6.

Tunable wavelength spacing in the output laser spectrum. (a) 2.82 nm of the wavelength spacing. (b) 1.76 nm of the wavelength spacing.

Fig. 7.
Fig. 7.

Spectrum of the output multiwavelength laser with changing length of the short PMF. (a) 1 m length of the short PMF. (b) 2 m length of the short PMF.

Fig. 8.
Fig. 8.

Spectrum of the output multiwavelength laser with changing length of the long PMF. (a) 1 m length of the long PMF. (b) 5 m length of the long PMF.

Equations (5)

Equations on this page are rendered with MathJax. Learn more.

JPMF=[ejφ00ejφ],
JPC=[cosθsinθsinθcosθ].
[E1E2]=22[1jj1][E4E3].
T=I2/I1=sin2θcos2φ.
T=T1T2=sin2θ1cos2φ1sin2θ2cos2φ2.

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