MMI filters configuration for dual-wavelength generation in a ring cavity erbium-doped fibre laser

Álvarez-Tamayo, R. I.; Aguilar-Soto, José G.; Durán-Sánchez, M.; Antonio-López, Jose Enrique; Ibarra-Escamilla, B.; Kuzin, E. A.

doi:10.1186/s41476-016-0025-5

Cited by 9 publications

(5 citation statements)

References 19 publications

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“…where p is the number of the self-image, n N CF is the effective refractive index, D N CF is the diameter of the MMF, and L is the length of the MMF [25].…”

Section: Multimodal Interference Filtermentioning

confidence: 99%

Effect of graphite oxide electrochemically exfoliated over a multimode interference filter

Espinosa¹,

Flores-Rosas²,

Flores³

et al. 2023

Appl. Opt.

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In this work, we study multimodal interference filters with a graphite oxide coating. Use of the multimodal interference filter shows a distinctive peak in the signal spectrum, and when using the exfoliated graphite coated multimodal interference filter, the signal shows different spectral changes, such as the full width at half maximum of the curve, the maximum power, and central wavelength, which indicates that graphite oxide absorbs part of the energy. In addition, microscope observations when a He–Ne laser is passed through the filter confirm that graphite oxide is adhered to the filter.

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“…where p is the number of the self-image, n N CF is the effective refractive index, D N CF is the diameter of the MMF, and L is the length of the MMF [25].…”

Section: Multimodal Interference Filtermentioning

confidence: 99%

Effect of graphite oxide electrochemically exfoliated over a multimode interference filter

Espinosa¹,

Flores-Rosas²,

Flores³

et al. 2023

Appl. Opt.

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“…Without a thin film coating, the SMS structure acts as a narrow band-pass wavelength filter based on the multimode interference effect [31]. As it is shown in the schematic of Figure 1a, the light from the input SMF is propagated within the MMF through different modes.…”

Section: Thin Film Coated Fiber Structures For Lmr-based Sensorsmentioning

confidence: 99%

“…The coupling coefficient of the excited mode interference produces periodic self-images at different MMF fiber lengths, in which a high transmission peaks at a corresponding wavelength is reached. In order to obtain a field distribution at the end of the MMF as an image of the input field, the length of the MMF for a central wavelength where the maximum multimode interference is obtained as follows [31]. λc=pnMMFDMMF2L where p is the self-image number, n MMF is the effective refractive index of the MMF, D MMF is the diameter of the MMF corresponding to the effective width of the fundamental mode, and L is the MMF length.…”

Section: Thin Film Coated Fiber Structures For Lmr-based Sensorsmentioning

confidence: 99%

Lossy Mode Resonance Generation on Sputtered Aluminum-Doped Zinc Oxide Thin Films Deposited on Multimode Optical Fiber Structures for Sensing Applications in the 1.55 µm Wavelength Range

Prieto-Cortés

Álvarez-Tamayo

García-Méndez

et al. 2019

Sensors

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In this work, we demonstrated lossy mode resonance (LMR) generation in optical fiber structures based on multimode fibers coated with aluminum-doped zinc oxide (AZO) films. AZO thin films were deposited by using radio frequency magnetron sputtering. In order to exhibit the usefulness of the LMR effect for sensing applications in optical fiber based systems, the deposition conditions of the AZO film coatings were set to obtain the second LMR order within the 1.55 µm wavelength range. An optical transmission configuration setup was used to investigate the LMR effect on fiber structures based on the use of no-core and cladding-removed multimode fibers coated with AZO films synthesized from metallic sputtering targets with different proportions of Zn:Al, 92:8% and 98:2%, at atomic concentrations. The optical and electrical/chemical features of the AZO films were characterized with UV–vis and XPS spectroscopy, respectively. The optical response of the proposed sensing configuration to refractive index (RI) variations was experimentally demonstrated. For the best approach, the sensitivity of wavelength displacement to RI variations on the liquid surrounding media was found to be 1214.7 nm/RIU.

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“…Rare-earth-doped fibers behave as a homogeneous gain medium at room temperature, which lead to a strong mode competition between the two simultaneous laser wavelengths and unstable lasing. Therefore, in order to obtain stable dual-wavelength laser generation, a common method employed is based on the use of a spectral filter within the laser to adjust the cavity losses [2,[14][15][16].…”

Section: Laser Physicsmentioning

confidence: 99%

In-fiber Mach–Zehnder interferometer based on a Nd-doped double-clad fiber for switchable single and dual-wavelength EDF laser application

et al. 2017

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We present an experimental study of a novel Mach-Zehnder in-fiber interferometer and its application for single and dual-wavelength operation of a ring cavity fiber laser. The proposed in-fiber interferometer, consisting of a segment of Nd-doped fiber spliced between two segments of standard single mode fibers, exhibits a wavelength periodical transmission spectrum with a period of 2.8 nm and a fringe contrast of ~0.8 dB. The Mach-Zehnder interferometer (MZI) is used as a spectral filter to obtain switchable single and dualwavelength operation of an Er-doped fiber laser (EDFL). Laser emission with laser lines spectral width less than 0.22 nm and wavelength separation of 2.8 nm corresponding to transmission spectrum wavelength period of the MZI is obtained. The stability of the dualwavelength operation of the EDFL is also discussed. The use of the proposed in-fiber MZI as a reliable, spectral filter to achieve stable single and dual-wavelength laser generation in a ring cavity fiber laser is experimentally demonstrated.

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MMI filters configuration for dual-wavelength generation in a ring cavity erbium-doped fibre laser

Cited by 9 publications

References 19 publications

Effect of graphite oxide electrochemically exfoliated over a multimode interference filter

Effect of graphite oxide electrochemically exfoliated over a multimode interference filter

Lossy Mode Resonance Generation on Sputtered Aluminum-Doped Zinc Oxide Thin Films Deposited on Multimode Optical Fiber Structures for Sensing Applications in the 1.55 µm Wavelength Range

In-fiber Mach–Zehnder interferometer based on a Nd-doped double-clad fiber for switchable single and dual-wavelength EDF laser application

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