Pulsed linearly polarized optical fiber laser using...

Details Pulsed linearly polarized optical fiber laser using... Pulsed linearly polarized optical fiber laser using...

2009-01-22

2010-10-19

Harvey, Minsun (Department: 2828)

Coherent light generators

Optical fiber laser

C372S039000

Reexamination Certificate

active

07817683

ABSTRACT:
Optical fiber source for providing polarized optical pulses, comprising a Q-switched fiber laser for providing substantially unpolarized seed pulses of optical energy, where the Q-switched fiber laser can comprise a laser cavity having a Q-switch and an optical fiber comprising a gain medium, where the optical fiber need not be a polarizing or polarization maintaining optical fiber; a passive polarizing element arranged to receive and substantially polarize the substantially unpolarized seed pulses; and a polarization maintaining fiber amplifier arranged for receiving the polarized seed pulses. The polarization maintaining fiber amplifier can comprise a selected polarizing or polarization maintaining fiber having a core comprising a gain medium for amplifying the substantially polarized seed pulses, where the core can be normally multimode at a an operating wavelength of the optical fiber source. The fiber amplifier can provide substantially polarized output pulses. In one practice of the invention, the pulse power instability, over at least 100 consecutive pulses, is no greater than 10%.

REFERENCES:
patent: 5909306 (1999-06-01), Goldberg et al.
patent: 6275250 (2001-08-01), Sanders et al.
patent: 6917631 (2005-07-01), Richardson et al.
patent: 7330301 (2008-02-01), Harter
patent: 7529281 (2009-05-01), Leonardo et al.

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