Fine adjustment of cavity loss by Sagnac loop for a dual wavelength generation

Durán-Sánchez, M.; Flores-Rosas, A.; Álvarez-Tamayo, R. I.; Kuzin, E. A.; Pottiez, O.; Bello-Jiménez, M.; Ibarra-Escamilla, B.

doi:10.1134/s1054660x10090446

Cited by 29 publications

(13 citation statements)

References 15 publications

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“…The splices between the Hi-Bi fiber and the 50/50 coupler output ports were placed in mechanical rotation stages to adjust the fringe contrast of the reflection/transmission output spectrum [18]. The Hi-Bi fiber was placed on a Peltier device in order to perform a wavelength displacement of the Hi-Bi FOLM output spectrum by temperature variation applied on the Hi-Bi fiber loop [17][18][19]. The input port (output 2) is used to measure the Hi-Bi FOLM transmission spectrum and the laser spectra with an optical spectrum analyzer (OSA, Yokogawa AQ6375) (Yokogawa Corporation of America, Newnan, GA, USA) with spectral resolution of 0.03 nm.…”

Section: Methodsmentioning

confidence: 99%

“…TFBG1 and TFBG2, used as narrow bandwidth wavelength reflectors, exhibit ~99% of maximum reflection at central reflection wavelengths of 1548.6 nm and 1543.86 nm, respectively. The TFBGs were placed in a micrometric screw mechanical system for wavelength tuning by mechanical strain application [17][18][19]. …”

Section: Methodsmentioning

confidence: 99%

“…The Hi-Bi FOLM whose exhibits a wavelength-dependent periodical transmission spectrum is used as broad bandwidth wavelength reflector. The splices between the Hi-Bi fiber and the 50/50 coupler output ports were placed in mechanical rotation stages to adjust the fringe contrast of the reflection/transmission output spectrum [18]. The Hi-Bi fiber was placed on a Peltier device in order to perform a wavelength displacement of the Hi-Bi FOLM output spectrum by temperature variation applied on the Hi-Bi fiber loop [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Self-Q-Switch and CW Operation of a Tunable Dual-Wavelength Er/Yb Double-Clad Fiber Laser

et al. 2018

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Featured Application: High-power light sources, terahertz generation, thulium-doped fiber laser, pump power sources. Abstract:In this paper, a double-clad Er/Yb fiber laser with self-Q-switched and continuous wave operation depending on the pump power range is experimentally demonstrated. The linear cavity is formed on one side by a pair of cascaded tunable fiber Bragg gratings used for the selection and tuning of the generated laser lines. On the opposite side, a fiber optical loop mirror with high birefringence fiber in the loop is used to adjust the intra-cavity losses to obtain dual-wavelength emission by temperature changes on the fiber loop. Continuous wave dual-wavelength laser operation is obtained for tunable separation of the generated laser lines in a range from 1 to 7 nm, maximum output power of 3.6 W with a pump power of 10 W and laser wavelengths linewidth of~0.2 nm. Self-Q-switched laser pulses are obtained with low pump power in a range from 322 to 890 mW. Q-switched pulses with minimum pulse duration of~1.5 µs and maximum pulse energy of~3.5 µJ are obtained.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Self-Q-Switch and CW Operation of a Tunable Dual-Wavelength Er/Yb Double-Clad Fiber Laser

et al. 2018

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“…The methods are focused on adjusting laser intracavity losses to balance the simultaneously generated wavelengths. In previously reported investigations, the Sagnac interferometer with high birefringence (Hi-Bi) fiber loop capability has been theoretically and experimentally demonstrated as a trustworthy alternative for the adjustment of losses within the cavity [21,[36][37][38], since the Hi-Bi FOLM periodical spectrum can be finely displaced in wavelength by temperature variations applied on the Hi-Bi fiber loop [37].…”

Section: Q-switched Fiber Lasers: a Review From Operating Principle Tmentioning

confidence: 99%

Active Q-switched Fiber Lasers with Single and Dualwavelength Operation

Álvarez-Tamayo¹,

Durán-Sánchez²,

Pottiez³

et al. 2016

Fiber Laser

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A brief explanation on Q-switched fiber laser operating principle for active technique in terms of operation characteristics is presented. Experimental analysis of proposed pulsed fiber lasers by the active Q-switched technique is demonstrated. Experimental setups include the use of Er/Yb doped fiber as a gain medium and an acousto-optic modulator as cavity elements. Setup variations include the use of fiber Bragg gratings for wavelength selection and tuning and Sagnac interferometer for wavelength selection in single wavelength operation and for cavity loss adjustment in dual wavelength operation. The experimental analysis of principal characteristics of single-wavelength operation of the fiber laser and cavity loss adjustment method for dual-wavelength laser operation are discussed.

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“…The tuning operation was achieved by force tuning the Bragg wavelength of the FBG. Compared with other approaches such as the use of erbium-doped LiNbO3 waveguide [7] or Sagnac loop [8,9,10], the laser based on closed loop control features remarkable wavelength stability. The laser wavelength is stable at certain value in spite of exterior disturbances.…”

Section: Introductionmentioning

confidence: 99%

A widely tunable erbium-doped fiber laser using closed loop control

Wang

Xin

Zhu

2014

IEICE Electron. Express

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Abstract:We propose and experimentally demonstrate a novel single-frequency erbium-doped fiber ring laser which features remarkable wavelength stability with the use of closed loop control. The system consists of a tunable FBG filter, erbium-doped fiber and a wavelength detector which detects the input wavelength to activate the closed loop control system to stabilize the output wavelength. The stability of the laser is investigated, the optimum operation wavelength range (1530-1570 nm) for the laser to achieve output power of 1.3 dBm, power variation of less than 0.2 dB and SMSR of up to 61.2 dB (0.02 nm resolution) is demonstrated.

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Fine adjustment of cavity loss by Sagnac loop for a dual wavelength generation

Cited by 29 publications

References 15 publications

Self-Q-Switch and CW Operation of a Tunable Dual-Wavelength Er/Yb Double-Clad Fiber Laser

Self-Q-Switch and CW Operation of a Tunable Dual-Wavelength Er/Yb Double-Clad Fiber Laser

Active Q-switched Fiber Lasers with Single and Dualwavelength Operation

A widely tunable erbium-doped fiber laser using closed loop control

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