Widely-tunable all-fiber optical parametric oscillator seeded by filtered self-phase modulated pulses

We demonstrate experimentally a widely-tunable all-fiber light source based on a four-wave mixing resonant cavity configuration. We show how a self-phase modulation of chirped pulses at a fixed central wavelength enables the construction of a tunable laser capable of shifting parametric sideband over a broad spectral range by simply using a series of bandpass filters. Our fiber optical parametric oscillator emits radiations spanning from 730 nm up to 940 nm. This compact and maintenance-free system, built entirely from polarization-maintaining fibers and fiber components, shows promise for applications in nonlinear imaging and spectroscopy.