Tuning Dynamics of the Acousto-Optical Tunable SOA Fiber Laser

Li, Yujia; Dang, Laiyang; Huang, Ligang; Cao, Yulong; Zheng, Bowen; Ikechukwu, Iroegbu Paul; Lan, Tianyi; Shi, Leilei; Gao, Lei; Yin, Guolu; Zhu, Tao

doi:10.1109/jlt.2022.3186971

Cited by 6 publications

(4 citation statements)

References 26 publications

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“…Fortunately, the acousto-optical interaction (AOI) in optical fibers can be used to achieve a wide range of automated wavelength management [15][16][17]. It is worth mentioning that the core of constructing all-fiber add-drop bandpass acoustooptic tunable filter (AOTF) is to design AOI region with special structure.…”

Section: Introductionmentioning

confidence: 99%

C + L band ultra-widely tunable SOA hybrid fiber laser based on acousto-optic add-drop filter induced by polarization conversion

Qiu,

Bai,

et al. 2023

Laser Phys. Lett.

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Scientific and industrial applications have put forward new requirements for the wavelength tuning range of continuous-wave lasers. Herein, the constructed filter based on the acoustically-induced polarization conversion in single-mode fiber (SMF) covers the wavelength from 1464.2–1640.8 nm, and the tuning range is about ∼176.6 nm. The lasing wavelength is managed by the acousto-optical interaction in the SMF. Moreover, the gain spectrum of semiconductor optical amplifier (SOA) is flat and wide, which can achieve a wide range of laser tuning. Hence, we propose and demonstrate an ultra-widely tuning range ring cavity C + L tunable SOA hybrid fiber laser. Eventually, the tuning channel of the fiber laser is from 1527.3–1613 nm with the tuning range of about ∼85.7 nm, and its tuning range is determined by the gain bandwidth of SOA. The measured output power and center wavelength variations of the proposed fiber laser over a long-term observation are less than 0.11 mW and 0.44 nm, respectively. This work opens up a new way to expand the tuning range of other types of lasers.

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Section: Introductionmentioning

confidence: 99%

C + L band ultra-widely tunable SOA hybrid fiber laser based on acousto-optic add-drop filter induced by polarization conversion

Qiu,

Bai,

et al. 2023

Laser Phys. Lett.

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“…All-fiber acousto-optic modulators (AOMs) have been successfully employed in reconfigurable spectral filters (rejection band, passband, and add-drop), heterodyne sensors, Q-switched and mode-locked fiber lasers [1][2][3][4][5][6][7][8][9]. In particular, flexural acoustic waves induce dynamic longperiod gratings (LPGs) along an optical fiber, coupling power between the propagating optical modes.…”

mentioning

confidence: 99%

“…AOMs using long fibers and high voltages have increased the acousto-optic interaction [1][2][3][5][6][7]9] while providing wide spectral tuning ranges employing distinct fiber designs: hollow-core photonic bandgap optical fibers (18 -60 nm) [10,11], dispersion compensating fibers (36 -80 nm) [1,2,6], few-mode fibers (100 nm) [5], singlemode standard fibers (500 nm) [3] and, solid-core photonic crystal fibers (1000 nm) [12]. The modulated full width at half maximum (FWHM) bands usually range from 1 to 7 nm [2,5,11,12].…”

mentioning

confidence: 99%

“…The switching response time of modulated resonances in AOMs is accurately approximated by the time the acoustic wave takes along the interaction length L, as 𝜏 = 𝐿/(28𝜋𝑟𝑐 %&' 𝑓 ) [1,3,6] . Considering the experimental parameters, r = 100 μm, cext = 5740 m/s, L = 7.7 cm and f = 579 kHz, the response time is estimated as 38 μs, which is relatively shorter compared to previous studies (57 μs) [1].…”

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confidence: 99%

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All-fiber broadband spectral acousto-optic modulation of a tubular-lattice hollow-core optical fiber

da Silva,

Osório,

Rodrigues

et al. 2024

Opt. Lett.

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We demonstrate a broadband acousto-optic notch filter based on a tubular-lattice hollow-core fiber for the first time to our knowledge. The guided optical modes are modulated by acoustically induced dynamic long-period gratings along the fiber. The device is fabricated employing a short interaction length (7.7 cm) and low drive voltages (10 V). Modulated spectral bands with 20 nm half-width and maximum depths greater than 60% are achieved. The resonant notch wavelength is tuned from 743 to 1355 nm (612 nm span) by changing the frequency of the electrical signal. The results indicate a broader tuning range compared to previous studies using standard and hollow-core fibers. It further reveals unique properties for reconfigurable spectral filters and fiber lasers, pointing to the fast switching and highly efficient modulation of all-fiber photonic devices.

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