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Electronically tunable dual-color all-fiber optical parametric oscillator

Parametric light generation has been utilized very successfully in the past as a means of generating wavelength-tunable light pulses in a variety of systems. Especially fiber optical parametric oscillators (FOPO) based on four-wave mixing in a photonic crystal fiber [1, 2] have the potential to benefit from the inherent mechanical stability and robustness of a fiber-based setup. However, the presented concepts inherently prevent an all-fiber integrated setup by relying on a mechanical tuning of the resonator length or pump wavelength. In addition, such a tuning mechanism limits the achievable tuning speed, thereby, reducing the flexibility of the light source as well as being prone to mechanical abrasion and errors.