Frequency shifted feedback dye laser operating at a small shift frequency

Abstract Experimental results are presented for a frequency shifted feedback dye laser for small shift frequencies. The laser system supports many frequency components simultaneously even though the gain medium is homogeneously broadened. The laser spectrum consists of a chirped comb of frequency components which, for low pump powers, are separated by the cavity mode spacing. The formation of modes and the chirp is explained using the passive characteristics of the cavity.

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