Abstract
Single longitudinal mode (SLM) fiber lasers have attracted interest due to many applications in optical fiber sensing and fiber optical communication. Among SLM fiber lasers, Brillouin lasers with doubly-resonant cavity demonstrate low threshold, low intensity noise and perfect spectral performance. Such lasers employ a short ring cavity that has to be simultaneously resonant for the pump and Stokes waves. For stabilization of such lasers against environment noise two tasks have to be solved: 1) to lock the generated pump radiation to the frequency of one of the cavity modes; 2) to adjust the ring cavity length such that the Brillouin frequency shift for the locked pump frequency be exactly equal to an integer number of the ring cavity mode spacing.
© 2013 IEEE
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