1,447 research outputs found
Compact low cost Er<sup>3+</sup>/Yb<sup>3+</sup> co-doped fibre amplifiers pumped by 827nm laser diode
No full textThe authors present compact Er3+/Yb3+ fibre amplifiers pumped by a 827nm laser diode. With a 48cm long Er/Yb fibre, the amplifier exhibited a small signal gain of 34.9dB, a gain coefficient of 0.77dB/mW, and a noise figure of 4.1dB: demonstrating its potential as a cost effective optical amplifie
Hybrid Q-switching in double clad fiber lasers
No full textA novel cladding pumped Nd3+ fiber laser operating in an enhanced Q-switched regime with stable repetition rate is described. By exploiting fiber nonlinearities in the laser cavity, we demonstrated a pulse train with peak power of 3.7kW and pulse duration of 2ns
Efficient cladding pumping of an Er<sup>3+ </sup>fibre
No full textWe report for the first time efficient operation of a cladding pumped Er3+ fibre configured in both fibre laser and fibre amplifier form. The fibre was of a double clad design compatible with beamshaped 980nm broadstripe pump lasers An efficiency in excess of 40% has been achieved
Environmentally stable picosecond fibre laser with broad tuning range
No full textWe demonstrate a robust, mode-locked, tunable Yb doped fibre laser. The use of dual mode-locked and Q-switched operation in a passively mode-locked configuration allows us to generate 5 ps pulses with a peak power of 750 W at a repetition rate of 100 MHz
Environmentally stable picosecond ytterbium fiber laser with a broad band tuning range
No full textWe demonstrate a widely tunable passively mode-locked fiber laser operating at a fundamental frequency of 80 MHz with an output power of 90 mW. The laser is capable of generating 5-ps pulses in the region 1010-1064 nm. A strong mode-locking mechanism promoted by frequency-shifted feedback allows us to operate in simultaneous Q-switched and mode-locked regimes and to obtain peak power in excess of 1.2 kW
Efficient cladding pumped Er<sup>3+</sup>/Yb<sup>3+</sup>-doped fibre amplifier and bending effect in cladding pumping scheme
No full textWe present efficient operation of a double clad Er3+/Yb3+ fibre with efficiency in excess of 40%. Small signal gain of 33dB and saturation output in excess of 23dBm have been obtained. Bending effect is discussed
Enhanced Q-switching in double clad fiber lasers
No full textA novel cladding pumped Nd3+ fibre laser operating in an enhanced Q-switched regime with stable repetition rate is described. By exploiting fibre nonlinearities in the fibre cavity, we demonstrated peak power of 3.7 kW, enhanced by an order of magnitude over conventional Q-switched devices. Pulse durations as short as 2 ns have been achieved
Advances in cladding pumped fibre lasers
No full textCladding pumping is a technique whereby high power broadstripe diodes and diode bars are employed as efficient pump sources for double-clad rare earth doped single-mode fibres. Output powers ranging from several hundred milliwatts to several tens of watts have been attained with this technique. Important application areas include telecommunications, medicine, laser marking and laser radar
sj-docx-1-jdr-10.1177_00220345211073072 – Supplemental material for GSDME Is Related to Prognosis and Response to Chemotherapy in Oral Cancer
No full textSupplemental material, sj-docx-1-jdr-10.1177_00220345211073072 for GSDME Is Related to Prognosis and Response to Chemotherapy in Oral Cancer by S. Wang, M.J. Zhang, Z.Z. Wu, S.W. Zhu, S.C. Wan, B.X. Zhang, Q.C. Yang, Y. Xiao, L. Chen and Z.J. Sun in Journal of Dental Research</p
Reply to the discussion by McCarron on “Modelling spatial variability in as-laid embedment for high pressure and high temperature (HPHT) pipeline design”
No full textN/AThe accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
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