Bi-doped fiber amplifiers and lasers [Invited]

Thipparapu, Naresh Kumar; Wang, Y.; Wang, S.; Umnikov, Andrey; Barua, Pranabesh; Sahu, J.K.

doi:10.1364/ome.9.002446

Cited by 118 publications

(54 citation statements)

References 83 publications

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“…[17][18][19][20][21][22] Moreover, the tunable Bi-doped fiber lasers operating in different regions of 1100-1800 nm could only be obtained via modulating fiber core composition and applying various pumping sources. [23][24][25][26][27][28] Based on those results, several meaningful ways have been carried out to improve the optical performance of Bi NIR centers such as modifying doping content, 29 modulating chemical composition, 20,30 regulating optical basicity, 31,32 and employing high-energy irradiation. 33,34 Unfortunately, few reports can extend the Bi NIR emission band to the range of 1400-1500 nm to cover the entire communication band.…”

Section: +mentioning

confidence: 99%

“…Normally, Bi in diverse glass systems such as silicate, phosphate, and germante glasses only presents one emission band within the range in 1000‐1300 nm and fails to extend to technically relevant C‐ or L‐ band 17‐22 . Moreover, the tunable Bi‐doped fiber lasers operating in different regions of 1100‐1800 nm could only be obtained via modulating fiber core composition and applying various pumping sources 23‐28 . Based on those results, several meaningful ways have been carried out to improve the optical performance of Bi NIR centers such as modifying doping content, 29 modulating chemical composition, 20,30 regulating optical basicity, 31,32 and employing high‐energy irradiation 33,34 .…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of ultrabroadband Bi NIR emission via fluorination for all wavelength amplification of optical communication

et al. 2020

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Bismuth (Bi)-doped photonic glasses and fibers with broadband near-infrared (NIR) photoemission have potential applications in tunable lasers and broadband amplifiers. Yet, when it comes to all wavelength amplification of optical communication, it remains challenging to achieve efficient Bi NIR emission in the technically relevant C-and L-bands (1530-1625 nm). Here, we propose a scheme by fluorination triggered enhancement of ultra-broadband Bi NIR emission in nitrided germanate glasses. Besides, compared to previous research, a unique and efficient Bi-activated ultra-wideband NIR emission with new emission bands peaked at ~924 and ~1520 nm under excitation of 450 nm are obtained in nitrided germanate glasses after fluorination. Moreover, the fluorination can modulate the local chemical environment by forcing the conversion of aluminum species from AlO 4 to AlO 5 and AlO 6 and consequently increase the flexibility of the glass network structure, which finally induces the conversion of Bi species and then manipulates the relative emission intensity of different Bi NIR centers. Thus, a flat and tunable emission spectrum covering the entire optical communication band is obtained by optimizing the fluoride amount. We believe this work is helpful to design the Bi-doped tunable fiber lasers and ultrabroadband amplifiers for all wavelength amplification of optical communication. K E Y W O R D S all wavelength amplification, bismuth, broadband NIR emission, fluorination 1 | INTRODUCTION The speedy development and popularization of informationization promote the continuous increase in scale and complexity of communication networks, and put forward higher requirements for its transmission capacity 1,2. Tunable fiber lasers and wideband optical amplifiers operating in the near-infrared (NIR) region are major components in modern

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Section: +mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhancement of ultrabroadband Bi NIR emission via fluorination for all wavelength amplification of optical communication

et al. 2020

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“…The traditional methods of realizing 1.7 µm pulsed fiber lasers can be mainly classified into two categories. One is based on population inversion to generate 1.7 µm pulsed lasers by using rare-earth-doped fibers, such as thulium-doped fibers [6,7,10,11], thuliumholmium-codoped fibers [12,13], and bismuth-doped fibers [14][15][16]. The other is based on nonlinear effects in solid-core fibers to realize a frequency conversion, such as soliton self-frequency shift [17][18][19][20], four-wave mixing [21][22][23], self-phase modulation [7,24,25], and stimulated Raman scattering (SRS) [26].…”

Section: Introductionmentioning

confidence: 99%

Application of Hollow-Core Photonic Crystal Fibers in Gas Raman Lasers Operating at 1.7 μm

Jun

Wang

2021

Crystals

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A 1.7 μm pulsed laser plays an important role in bioimaging, gas detection, and so on. Fiber gas Raman lasers (FGRLs) based on hollow-core photonic crystal fibers (HC-PCFs) provide a novel and effective method for fiber lasers operating at 1.7 μm. Compared with traditional methods, FGRLs have more advantages in generating high-power 1.7 μm pulsed lasers. This paper reviews the studies of 1.7 μm FGRLs, briefly describes the principle and characteristics of HC-PCFs and gas-stimulated Raman scattering (SRS), and systematical characterizes 1.7 μm FGRLs in aspects of output spectral coverage, power-limiting factors, and a theoretical model. When the fiber length and pump power are constant, a relatively high gas pressure and appropriate pump peak power are the key to achieving high-power 1.7 μm Raman output. Furthermore, the development direction of 1.7 μm FGRLs is also explored.

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“…Nevertheless, in [14], because of the high energy pump pulse needed to be de-chirped close to transform-limited before launching into the fiber for spectral broadening, the pre-compression and free-space to fiber coupling decreased the compactness and increased complexity of the system. In order to directly produce signal at 1700 nm, Bismuth-doped fiber (BDF) and Thulium/Holmium co-doped fiber (THDF) have been investigated [15][16][17]. However, the low maturity level of BDF and the strong reabsorption of 1700 nm from the THDF make reaching high performance goals difficult.…”

Section: Introductionmentioning

confidence: 99%

All-fiber high-power 1700 nm femtosecond laser based on optical parametric chirped-pulse amplification

Qin¹,

Batjargal²,

Cromey³

et al. 2020

Opt. Express

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We present the design and construction of an all-fiber high-power optical parametric chirped-pulse amplifier working at 1700 nm, an important wavelength for bio-photonics and medical treatments. The laser delivers 1.42 W of output average power at 1700 nm, which corresponds to ∼40 nJ pulse energy. The pulse can be de-chirped with a conventional grating pair compressor to ∼450 fs. Furthermore, the laser has a stable performance with relative intensity noise typically below the -130 dBc/Hz level for the idler pulses at 1700 nm from 10kHz to 16.95 MHz, half of the laser repetition rate f /2.

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Bi-doped fiber amplifiers and lasers [Invited]

Cited by 118 publications

References 83 publications

Enhancement of ultrabroadband Bi NIR emission via fluorination for all wavelength amplification of optical communication

Enhancement of ultrabroadband Bi NIR emission via fluorination for all wavelength amplification of optical communication

Application of Hollow-Core Photonic Crystal Fibers in Gas Raman Lasers Operating at 1.7 μm

All-fiber high-power 1700 nm femtosecond laser based on optical parametric chirped-pulse amplification

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