High-power, pulsed ring fiber oscillator and method

Details High-power, pulsed ring fiber oscillator and method High-power, pulsed ring fiber oscillator and method

2011-01-25

2011-01-25

Van Roy, Tod T (Department: 2828)

Coherent light generators

Particular resonant cavity

Folded cavity

C372S006000, C372S010000

Reexamination Certificate

active

07876803

ABSTRACT:
A ring laser includes a large-core rare-earth-doped fiber ring-connected with a free-space path having an electro-optic switch, output coupler, and intracavity band-pass filter to enforce lasing operation in narrow wavelength range. In some cavity-dumped modes, the laser is configured in a similar manner, except that an output coupler is omitted since the optical power is extracted from the laser cavity by the electro-optic switch itself. The same laser can be configured to operate in Q-switched and/or cavity-dumping modes as well as in hybrid modes (e.g., partial Q-switch, followed by cavity dumping, or even CW). In some embodiments, the laser can be used as, or inject laser light into, a regenerative solid-state amplifier, or a Raman laser, or can be also used to generate visible, ultra-violet, mid-infrared, and far-infrared (THz) radiation via nonlinear wavelength conversion processes. The various embodiments can use a power oscillator or seed-plus-amplifier MOPA configuration.

REFERENCES:
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patent: 5828682 (1998-10-01), Moores
patent: 6288835 (2001-09-01), Nilsson
patent: 7372880 (2008-05-01), Jablonski et al.
patent: 7397832 (2008-07-01), Dell'Acqua et al.
patent: 2004/0114641 (2004-06-01), Wise et al.
patent: 2005/0238066 (2005-10-01), Liu
patent: 2006/0133432 (2006-06-01), Dragic

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