High power ytterbium fiber lasers at extremely long wavelengths by photonic bandgap fiber technology

Shirakawa, Akira; Chen, Meishin; Ueda, Ken–ichi; Olausson, Christina B.; Lyngsø, Jens K.; Broeng, Jes

doi:10.1109/photwtm.2011.5730108

Cited by 4 publications

(9 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They are showing a promising solution for new wavelength sources which have never been possible by conventional step-index type active fibers [1][2][3][4][5][6][7][8]. In PBGFs, highindex inclusions arranged periodically in the cladding create photonic bandgap guidance in the low-index rare-earth doped signal core.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Single-frequency ytterbium doped photonic bandgap fiber amplifier at 1178 nm

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…We have been investigating the Yb doped PBGF (Yb-PBGF) sources operating at 1178 nm [4]. We reported a fiber amplifier with as high as 167 W output power [6,7], as well as a fiber oscillator with an output power of 53.6 W [8] at this wavelength.…”

Section: Introductionmentioning

confidence: 99%

Single-frequency ytterbium doped photonic bandgap fiber amplifier at 1178 nm

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…Specially designed solid photonic band gap fiber has been introduced to suppress ASE, relying on its spectral filtering property based on bulk optical configuration [21]- [24]. Besides, heating the Yb-doped fiber has been proved to be another feasible way because the absorption cross-section of Yb ions can be increased with rising temperature [25], especially in spectral range of 1070-1100 nm where ASE occurs most possibly.…”

Section: Introductionmentioning

confidence: 99%

Diode-Pumped 1178-nm High-Power Yb-Doped Fiber Laser Operating at 125 C

et al. 2016

View full text Add to dashboard Cite

We demonstrate a high-power Yb-doped fiber laser operating at 1178 nm based on commercial silica double-cladding fiber and laser diode (LD) pumping regime at 976 nm. It is experimentally proved that heating the active fiber is an efficient way to suppress amplified spontaneous emission (ASE) and to increase the parasitic lasing threshold in long-wavelength Yb-doped fiber lasers. By adopting output coupling fiber Bragg grating (OC FBG) with high reflectivity and heating the Yb-doped fiber to 125 C, a record output power of 31 W is obtained, and the corresponding slope efficiency is $44% with respect to the pump power. To the best of our knowledge, it is the highest output power of Yb-doped fiber lasers, which adopt commercial double-cladding active fiber and operate in the range beyond 1160 nm. Furthermore, it is first experimentally proved that the parasitic lasing threshold is related to the power of the backward ASE and the length of the active fiber.Index Terms: Yb-doped fiber laser, long wavelength, high temperature.

show abstract

“…This region finds applications within the medical industry, high-resolution spectroscopy, and astronomical observations [1,2]. Especially the wavelength of 589 nm is of interest for excitation of sodium atoms in the atmosphere to create a so-called laser guide star.…”

Section: Introductionmentioning

confidence: 99%

“…This results in gain shaping, where the Yb gain maximum can be red shifted from 1030 nm to wavelengths above 1100 nm. Gain shaping has already been demonstrated in all-solid PBG fibers, and amplification at 1178 nm with output power of 167 W has been achieved [1].…”

Section: Introductionmentioning

confidence: 99%

Ytterbium-doped large-mode-area photonic crystal fiber amplifier with gain shaping for use at long wavelengths

et al. 2012

Self Cite

View full text Add to dashboard Cite

A large-mode-area Ytterbium-doped photonic crystal fiber amplifier with efficient suppression of amplified spontaneous emission is presented. The fiber cladding consists of a hexagonal lattice of air holes, where three rows are replaced with circular high-index inclusions. Seven missing air holes define the large-mode-area core. Light confinement is achieved by combined index and bandgap guiding, which allows for single-mode operation and distributed spectral filtering of amplified spontaneous. The fiber properties give control of the gain shape and are ideal for amplification in the long wavelength regime of the Ytterbium gain spectrum above 1100 nm.

show abstract

High power ytterbium fiber lasers at extremely long wavelengths by photonic bandgap fiber technology

Cited by 4 publications

References 53 publications

Single-frequency ytterbium doped photonic bandgap fiber amplifier at 1178 nm

Single-frequency ytterbium doped photonic bandgap fiber amplifier at 1178 nm

Diode-Pumped 1178-nm High-Power Yb-Doped Fiber Laser Operating at 125 C

Ytterbium-doped large-mode-area photonic crystal fiber amplifier with gain shaping for use at long wavelengths

Contact Info

Product

Resources

About