Figure eight fiber laser for ultrashort pulse generation

Details Figure eight fiber laser for ultrashort pulse generation Figure eight fiber laser for ultrashort pulse generation

2011-05-10

2011-05-10

Harvey, Minsun (Department: 2828)

Coherent light generators

Optical fiber laser

Reexamination Certificate

active

07940816

ABSTRACT:
A polarization-maintaining figure eight (PMFE) fiber laser is configured to generate ultrashort (femtosecond) output pulses by intentionally inserting asymmetry (in the form of a phase bias) into the bi-directional loop of the fiber laser. The introduction of asymmetry (via an asymmetric coupler, splice, attenuator, fiber bend, multiple amplifying sections, or the like) allows for an accumulation of phase difference within the bi-directional loop sufficient to create modelocking and generate ultrashort output pulses.

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