Stimulated Brillouin fiber-optic laser gyroscope

Zarinetchi, F.; Smith, Stephen P.; Ezekiel, S.

doi:10.1364/ol.16.000229

Cited by 150 publications

(64 citation statements)

References 13 publications

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“…To increase SBS efficiency in a Brillouin fiber laser, BP is tuned to a short fiber length cavity [26] which adds other features: (a) BP linewidth is filtered by the cavity which increases SBS efficiency, (b) where this filtering decreases BP power allowed to propagate inside the cavity, but the previous decrease in BP power is compensated by the accumulation of power inside the cavity at resonance. These effects have a net increase in SBS efficiency.…”

Section: Introductionmentioning

confidence: 99%

Generation of Nanosecond Optical Pulses With Controlled Repetition Rate Using in-Cavity Intensity Modulated Brillouin Erbium Fiber Laser

Kotb¹,

Shalaby²,

Ahmed³

2011

PIER

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Abstract-A multimode Brillouin Erbium Fiber Laser BEFL, at 1550 nm band, with in-cavity intensity modulation is demonstrated. The output of the laser is in the form of nanosecond pulses. The longitudinal mode separation is increased, which results in both reducing the number of oscillation modes and, at the same time, changing the output pulses repetition rate to be multiples of the round trip cavity frequency. It is also demonstrated that the number of modes is greatly reduced by the combination of active mode locking and the group velocity dispersion arising from the change in the refractive index at each mode due to the change in its gain within the Brillouin gain bandwidth. A case of a quasi single mode is reached where the output is nearly CW with very low sinusoidal modulation index.

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Section: Introductionmentioning

confidence: 99%

Generation of Nanosecond Optical Pulses With Controlled Repetition Rate Using in-Cavity Intensity Modulated Brillouin Erbium Fiber Laser

Kotb¹,

Shalaby²,

Ahmed³

2011

PIER

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“…O PTICAL FIBER ring resonators have been used in a number of applications, including fiber ring lasers [1], [2], sensors [3], fiber laser gyroscopes [4], optical spectrum analyzers [5], [6], and optical delay lines [7]. In this paper, we report the use of a fiber ring resonator for a different application, i.e., to enhance the multiplexing capability of white light interferometric sensors.…”

Section: Introductionmentioning

confidence: 99%

Multiplexing of fiber-optic white light interferometric sensors using a ring resonator

Yuan

Zhou

Jin

et al. 2002

J. Lightwave Technol.

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Abstract-A single-mode fiber-optic ring resonator is used as a multipath reference for multiplexing white light interferometric sensors. The theory of applying the resonator for multiplexing Michelson-type interferometer sensor is presented. The capacity of the technique in terms of maximum sensor number is evaluated for both a linear array and a sensor matrix. Experimental results for a three-sensor linear array and 2 1 sensor matrix are also presented.Index Terms-Multiplexing, optical fiber sensors, ring resonator, white light interferometry.

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“…Its output power reaches 70.1 mW, which is more than seven times higher than the seeded BP power. The BYFL has an optical signal-to-noise ratio that is greater than 65 dB and has many potential applications, such as in controllable optical delay lines, sensing, and RF photonics.OCIS , optical carrier amplitude control [3] , gyroscopes [4] , and lasers [5] . Brillouin fiber lasers (BFLs) have attracted significant interest for decades due to their linewidth narrowing effect.…”

mentioning

confidence: 99%

“…OCIS , optical carrier amplitude control [3] , gyroscopes [4] , and lasers [5] . Brillouin fiber lasers (BFLs) have attracted significant interest for decades due to their linewidth narrowing effect.…”

mentioning

confidence: 99%

“…Although SBS is detrimental for coherent optical communication systems, this disadvantage does not prohibit the exploitation of SBS in distributed strain and temperature sensing [1] , microwave generation [2] , optical carrier amplitude control [3] , gyroscopes [4] , and lasers [5] . Brillouin fiber lasers (BFLs) have attracted significant interest for decades due to their linewidth narrowing effect.…”

mentioning

confidence: 99%

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High-efficiency hybrid brillouin/ytterbium fiber laser

Zhang¹,

Jiang²,

Wang³

et al. 2012

中国光学快报

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A high-efficiency hybrid Brillouin/ytterbium fiber laser (BYFL) is demonstrated using a 41.5-cm-long highly ytterbium-doped fiber and a 10-m-long single-mode optical fiber. The BYFL operates at 1 052.92 nm, and the difference between it and the Brillouin pump (BP) wavelength matches the expected stimulated Brillouin scattering (SBS) Stokes shift. Its output power reaches 70.1 mW, which is more than seven times higher than the seeded BP power. The BYFL has an optical signal-to-noise ratio that is greater than 65 dB and has many potential applications, such as in controllable optical delay lines, sensing, and RF photonics.OCIS , optical carrier amplitude control [3] , gyroscopes [4] , and lasers [5] . Brillouin fiber lasers (BFLs) have attracted significant interest for decades due to their linewidth narrowing effect. The free-running spectral linewidth of the singlefrequency Brillouin ring fiber laser has been reported to be only a few hertz [6] , which can be several orders of magnitude narrower than that of their single-frequency pump beams. Moreover, the BFL exhibits low relative intensity and frequency noises. All these advantages make the BFL applicable in controllable optical delay lines, sensing [7] , and radio frequency (RF) photonics [8] . For a conventional ring-cavity Brillouin laser, the pump-coupling ratio depends on the cavity loss and the round-trip phase shift in the cavity, which must be an integer number of 2π to achieve the intensity enhancement. Although the conventional BFL exhibits useful characteristics, it has disadvantages such as the small output power, the requirement of cavity matching to the pump signal, and the difficulty in incorporating intracavity elements because of their associated loss. The hybrid Brillouin/ytterbium fiber laser (BYFL) can overcome these disadvantages by using an ytterbium-doped fiber amplifier to compensate for the resonator losses while still commencing a lasing action from the Brillouin gain.A high-efficiency BYFL based on Ref.[9] is demonstrated in this letter. When the Brillouin pump (BP) power is 9.68 mW, the laser output power reaches 70.1 mW at a 980-nm pump power of 383 mW, compared with that of Guan's work, which obtains only 40 mW of laser output. This BYFL has an optical signal-to-noise ratio (OSNR) that is greater than 65 dB. Figure 1 shows the BYFL configuration. The BP, a distributed feedback laser diode with a linewidth of less than 70 kHz at 1 052.86 nm, was amplified by a fiber amplifier and then seeded into the laser cavity through a circulator and a 70/30 coupler. The BP was first amplified by a 41.5-cm-long highly ytterbium-doped fiber (HYDF) with a pump absorption rate of 975 dB/m. Then, the BP entered into a 10-m-long single-mode fiber (SMF), which functions as the Brillouin gain medium. The Stokes wave was generated in the SMF and circulated clockwise, and a 1 053-nm isolator was inserted in the cavity to prevent the laser from injection locking to the BP. The 70/30 coupler coupled the laser out of the cavity through the 70% port, wherea...

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Stimulated Brillouin fiber-optic laser gyroscope

Abstract: We achieved simultaneous bidirectional lasing in an all-fiber ring laser, using stimulated Brillouin scattering as the gain medium. The Brillouin lasing threshold was 60 microW for a He-Ne pump at 1.15 microm. The operation of this device as a ring-laser gyroscope was demonstrated.

Cited by 150 publications

References 13 publications

Generation of Nanosecond Optical Pulses With Controlled Repetition Rate Using in-Cavity Intensity Modulated Brillouin Erbium Fiber Laser

Generation of Nanosecond Optical Pulses With Controlled Repetition Rate Using in-Cavity Intensity Modulated Brillouin Erbium Fiber Laser

Multiplexing of fiber-optic white light interferometric sensors using a ring resonator

High-efficiency hybrid brillouin/ytterbium fiber laser

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