Optical fiber lasers assisted by microdrilled optical fiber tapers

Pérez-Herrera, Rosa Ana; Pallarés-Aldeiturriaga, D.; Judez, A.; Cobo, Luis Rodríguez; Lopez-Amo, M.; López‐Higuera, J. M.

doi:10.1364/ol.44.002669

Cited by 14 publications

(14 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A commercial femtosecond fiber laser chirped pulse amplifier (FLCPA; CALMAR Laser, Inc., USA) was used to generate pulses that were focused through a NA = 0.5 objective lens (to converge at the sample which was placed on a nano-resolution motorized stage (Aerotech, Inc., USA). The stage was translated in a single direction parallel to the fiber length during execution of the micro-drilling inscription, following a process similar to the one previously used in [14]. The femtosecond laser pulses were centered at a wavelength of 1030 nm; the pulse duration was 370 fs and pulse energy was 0.47-0.9 μJ; the writing speed was 0.1 mm/s.…”

Section: Experimental Setup 21 Inscription Processmentioning

confidence: 99%

“…Nowadays new cavities have been developed in order to achieve short distributed mirrors for fiber lasers [12][13]. In this case, usual Er-doped fiber based amplification can be used, leading to short cavity laser structures [14]. The distributed lasing structures show improved features such as a modeless behavior, high output power stability or the possibility of being internally modulated, among others.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Micro-drilled optical fiber for enhanced laser strain sensors

Herrera

Bravo

Roldán-Varona

et al. 2019

Seventh European Workshop on Optical Fibre Sensors

View full text Add to dashboard Cite

In this work, we present an experimental measurement of temperature and strain sensitivities of a micro-drilled optical fiber (MDOF). The MDOF consisted of a quasi-randomly distributed reflector along a single mode fiber (SMF). A fiber cavity laser based on MDOF was experimentally studied, attaining a single-wavelength laser emission centered at 1568.6nm. The output power level obtained from this single-laser oscillation when pumped at 140mW was around-9.6dBm, and an optical signal to noise ratio (OSNR) of around 45dB was measured. Although temperature sensitivities of fiber Bragg gratings used as sensors are similar to our MDOF, strain sensitivity is enhanced around one order of magnitude when the MDOF was used.

show abstract

Section: Experimental Setup 21 Inscription Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Micro-drilled optical fiber for enhanced laser strain sensors

Herrera

Bravo

Roldán-Varona

et al. 2019

Seventh European Workshop on Optical Fibre Sensors

View full text Add to dashboard Cite

show abstract

“…By using femtosecond laser technology, dots with a pseudo-random pitch have been inscribed in a single-mode fiber. With this approach, a quasi-randomly distributed reflector (working as a sensing mirror) in a short-cavity fiber optic laser sensor has been reported [160,161]. A better sensitivity for the measurement of strain than regular FBG transducers has been offered by this fiber laser sensor.…”

Section: Scattering Dotsmentioning

confidence: 99%

Optical Fiber Sensors by Direct Laser Processing: A Review

Pallarés-Aldeiturriaga

Roldán-Varona

Rodŕıguez-Cobo

et al. 2020

Sensors

Self Cite

View full text Add to dashboard Cite

The consolidation of laser micro/nano processing technologies has led to a continuous increase in the complexity of optical fiber sensors. This new avenue offers novel possibilities for advanced sensing in a wide set of application sectors and, especially in the industrial and medical fields. In this review, the most important transducing structures carried out by laser processing in optical fiber are shown. The work covers different types of fiber Bragg gratings with an emphasis in the direct-write technique and their most interesting inscription configurations. Along with gratings, cladding waveguide structures in optical fibers have reached notable importance in the development of new optical fiber transducers. That is why a detailed study is made of the different laser inscription configurations that can be adopted, as well as their current applications. Microcavities manufactured in optical fibers can be used as both optical transducer and hybrid structure to reach advanced soft-matter optical sensing approaches based on optofluidic concepts. These in-fiber cavities manufactured by femtosecond laser irradiation followed by chemical etching are promising tools for biophotonic devices. Finally, the enhanced Rayleigh backscattering fibers by femtosecond laser dots inscription are also discussed, as a consequence of the new sensing possibilities they enable.

show abstract

“…It induces a nonlinear multi-photon absorption of material to modulate the refractive index along an optical fiber, so the position and reflectivity of the scattering points can be controlled [8].…”

Section: Introductionmentioning

confidence: 99%

Single Longitudinal Mode Lasers by Using Artificially Controlled Backscattering Erbium Doped Fibers

et al. 2021

Self Cite

View full text Add to dashboard Cite

In this work, we propose and experimentally demonstrate a new distributed short linear cavity fiber laser. At one of the cavity ends, fabricated by a commercial femtosecond fiber laser chirped pulse amplifier, an artificially controlled backscattering erbium doped fiber section has been connected. This distributed reflector acts also as a saturable absorber, leading to the generation of tunable and switchable single longitudinal-mode laser emissions. The distributed reflector consists of 9 micro-drilled sections of about 1cm each one and randomly spread throughout 2 meters of highly doped erbium fiber. The total length of the fiber laser is 9.5 m and the laser shows a single mode behavior at all the emitted wavelengths. Using this new kind of reflecting saturable absorber, single and multiple single-mode emissions can be obtained. The achieved laser presents a pump threshold as low as 45 mW and shows up to 8 different single-mode emission lines with an optical signal to noise ratio of 45dB.

show abstract

Optical fiber lasers assisted by microdrilled optical fiber tapers

Cited by 14 publications

References 20 publications

Micro-drilled optical fiber for enhanced laser strain sensors

Micro-drilled optical fiber for enhanced laser strain sensors

Optical Fiber Sensors by Direct Laser Processing: A Review

Single Longitudinal Mode Lasers by Using Artificially Controlled Backscattering Erbium Doped Fibers

Contact Info

Product

Resources

About