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Q-switching in fibre lasers

Q-switching in fibre lasers
Q-switching in fibre lasers
This chapter is aimed at providing a detailed description of the techniques involved in Q-switching fibre lasers. In view of the potential of these sources, particular emphasis is placed on diode-pumped operation. In addition, the present status of this type of laser is reviewed, current limitations discussed and possible future progress outlined.

There are many applications where it is preferable to operate lasers in a pulsed mode. For example, as sources for distributed sensing and for range finding. Diode lasers, although convenient and compact, are inherently poor at this due to the low damage thresholds of semiconductor materials. Glass on the other hand can withstand high optical intensities (typically x 103) without damage. A compromise is thus to pump a fibre-laser with a laser diode. In this way a compact, all solid-state device can still be made. Direct modulation of the fibre-laser in the form of Q-switching allows significant peak powers and short duration pulses to be generated.
375-392
Dekker
Barnes, W.L.
eb37c8ae-64f0-4857-a10d-202b4b09a271
Digonnet, M.J.F.
Barnes, W.L.
eb37c8ae-64f0-4857-a10d-202b4b09a271
Digonnet, M.J.F.

Barnes, W.L. (1993) Q-switching in fibre lasers. In, Digonnet, M.J.F. (ed.) Rare-Earth-Doped Fibre Lasers and Amplifiers. (Optical Engineering Series) New York, US. Dekker, pp. 375-392.

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Abstract

This chapter is aimed at providing a detailed description of the techniques involved in Q-switching fibre lasers. In view of the potential of these sources, particular emphasis is placed on diode-pumped operation. In addition, the present status of this type of laser is reviewed, current limitations discussed and possible future progress outlined.

There are many applications where it is preferable to operate lasers in a pulsed mode. For example, as sources for distributed sensing and for range finding. Diode lasers, although convenient and compact, are inherently poor at this due to the low damage thresholds of semiconductor materials. Glass on the other hand can withstand high optical intensities (typically x 103) without damage. A compromise is thus to pump a fibre-laser with a laser diode. In this way a compact, all solid-state device can still be made. Direct modulation of the fibre-laser in the form of Q-switching allows significant peak powers and short duration pulses to be generated.

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Published date: 1993
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 393652
URI: https://eprints.soton.ac.uk/id/eprint/393652
PURE UUID: 8f4b4113-496c-401e-a3dc-7b301b493729

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Date deposited: 22 Jun 2016 10:49
Last modified: 23 Jul 2018 16:31

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