High Power, Tunable, Continuous-Wave Fiber Lasers in the L-Band Using Cascaded Raman Amplifiers

Arun, S and Choudhury, Vishal and Prakash, Roopa and Supradeepa, V R (2018) High Power, Tunable, Continuous-Wave Fiber Lasers in the L-Band Using Cascaded Raman Amplifiers. In: IEEE PHOTONICS TECHNOLOGY LETTERS, 30 (15). pp. 1412-1415.

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Abstract

We demonstrate a high power, all-fiber, and tunable laser source that can operate in the L-band region. A low power, tunable input laser is amplified with a recently proposed, high efficiency, sixth-order cascaded Raman amplifier. The proposed system is scalable and overcomes the limitations of Erbium and Erbium-Ytterbium co-doped fiber lasers for power scaling. A tunable Erbium-Ytterbium co-doped fiber ring laser generating similar to 0.5 W of power and tunable in 1560-1590 nm wavelength range is utilized as the seed source. The output from the seed laser is amplified to similar to 24 W using sixth-order cascaded Raman amplification. A high power Yb laser operating at 1117 nm is used as the pump laser for driving the Raman conversions. The operating wavelength of the demonstrated laser in the eye-safe, atmospherically transparent region enables high power free-space applications. In addition, this source enables other interesting applications, such as high power supercontinuum generation with conventional silica fibers.

Item Type:	Journal Article
Publication:	IEEE PHOTONICS TECHNOLOGY LETTERS
Publisher:	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Additional Information:	Copyright of this article belong to IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	08 Aug 2018 16:25
Last Modified:	08 Aug 2018 16:25
URI:	http://eprints.iisc.ac.in/id/eprint/60367

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