Tunable bandpass filter based on force-induced long-period fiber grating in a double cladding fiber

Sakata, Hajime; Nishio, Keisuke; Ichikawa, Marie

doi:10.1364/ol.35.001061

Cited by 14 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the device is cost-effective with a simple structure, showcasing significant potential for various other optical fiber sensing applications. The mechanically induced LPFGs are also widely used in applications such as tunable band-passed filter [61], ring laser in the L-band [62], EDFA gain flatter [63], OAM mode generator [64,65], and mode converter [66,67]. The applications of the mechanically induced LPFGs are advancing toward the future.…”

Section: Applications Of Mechanically Induced Lpfgsmentioning

confidence: 99%

See 1 more Smart Citation

Mechanically Induced Long-Period Fiber Gratings and Applications

Ran,

Chen,

Wang

et al. 2024

Photonics

View full text Add to dashboard Cite

Long-period fiber gratings (LPFGs) functioning as band-reject filters have played a pivotal role in the realm of optical communication. Since their initial documentation in 1996, LPFGs have witnessed rapid advancements in areas such as optical sensing, the equalization of optical amplification, and optical band-pass filtering, etc. The unique attributes of optical fiber-based grating, including their miniaturized size, cost-effectiveness, and immunity to electromagnetic interference, have contributed significantly to various sectors over the last two decades. This paper presents a review of the evolution of LPFGs, with a specific focus on the progression and current trends of mechanically induced long-period fiber gratings. It offers a concise overview of coupled-mode theory, the fabrication processes, the merits, and the limitations associated with mechanically induced LPFGs. Moreover, this review elucidates the application methodologies of mechanically induced LPFGs and anticipates future directions in this field.

show abstract

Section: Applications Of Mechanically Induced Lpfgsmentioning

confidence: 99%

“…[52,53] Tunable bandpass filter Single-fiber configuration without insertion devices and independence between tunable range and transmission amplitude. [61] Ring laser in the L-band…”

Section: Applications Performance Referencementioning

confidence: 99%

Mechanically Induced Long-Period Fiber Gratings and Applications

Ran,

Chen,

Wang

et al. 2024

Photonics

View full text Add to dashboard Cite

show abstract

“…For several decades, significant research efforts have been focused on the considerable potential of long-period fiber gratings (LPFGs) [1][2][3][4][5][6][7][8][9][10][11]. The cladding modes enable a wide field of applications, including band rejection and tunable filters, and are also applied as optical fiber sensors for temperature, refractive index (RI) and strain detection [12][13][14][15][16]. A traditional method for fabricating LPFGs involves exposing the optical fiber covered with an amplitude mask to an ultra-violet laser beam [17,18].…”

Section: Introductionmentioning

confidence: 99%

Graphene-assisted high-precision temperature sensing by long-period fiber gratings

Wang

Ren

Kong

et al. 2019

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

The tapered long-period fiber grating (TLPFG) and rotated chiral long-period fiber gratings (CLPFG) heated by a CO2 laser were fabricated by periodically tapering and rotating standard single-mode fibers (SMF). The temperature sensing characteristics of the TLPFG and CLPFG between 30 °C and 60 °C were experimentally investigated, and the slopes of the wavelength shift corresponded to 0.115 nm °C−1 and 0.04 nm °C−1, respectively. The graphene films were coated on gratings to fabricate graphene-coated TLPFG (GTLPFG) and graphene-coated CLPFG (GCLPFG). Given the thermal effects of graphene, the slopes of the resonance dip shift of the GTLPFG and GCLPFG between 30 °C and 60 °C increased to 0.196 nm °C−1 and 0.113 nm °C−1, respectively. Additionally, the high temperature sensing properties of TLPFG and CLPFG between 100 °C and 1000 °C were investigated. The slopes of the higher-order resonance dips of the TLPFG and CLPFG corresponded to 0.119 nm °C−1 and 0.09 nm °C−1, respectively, during the heating process, and to 0.116 °C−1 and 0.09 nm °C−1, respectively, during the cooling process. In the low and high temperature zones, the TLPFG exhibited higher sensitivity when compared to that of the CLPFG, while the CLPFG exhibited higher sensing precision with linearity approaching 1. Given the simple and unsophisticated fabrication process and the high quality and sensitivity of the fabricated gratings, the proposed sensors can play an important role in high-precision temperature-sensing applications.

show abstract

“…Considering the treatment and accuracy of detection, the bandpass filter (BPF) response is more advantageous than the band rejection filter response. Recently, we reported a tunable BPF using a microbend LPFG controlled with a coil spring [8]. We took advantages of the microbend LPFG as the grating period could be changed by expanding the coil spring.…”

Section: Introductionmentioning

confidence: 99%

Adhesive‐fixed microbend long‐period fiber gratings with bandpass filter response

Sakata

Saito

2011

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

improvements can then be made based on the full-wave simulation. The benefits of having an analytic effective-media reference that can be used for guiding retrieval are also worth noting. ABSTRACT: We demonstrate an adhesive-fixed periodic microbending whose transmission spectrum shows a bandpass filter response with the help of a fiber coil. In addition to thermal shift of the resonance wavelength, the transmission peak amplitude is varied with ambient temperature due to thermal expansion of the adhesive that maintains the microbend.

show abstract

Tunable bandpass filter based on force-induced long-period fiber grating in a double cladding fiber

Cited by 14 publications

References 8 publications

Mechanically Induced Long-Period Fiber Gratings and Applications

Mechanically Induced Long-Period Fiber Gratings and Applications

Graphene-assisted high-precision temperature sensing by long-period fiber gratings

Adhesive‐fixed microbend long‐period fiber gratings with bandpass filter response

Contact Info

Product

Resources

About