Tunable dual-wavelength fiber laser based on an opto-VLSI processor and four-wave mixing in a photonic crystal fiber

A stable wavelength and wavelength spacing tunable dual-wavelength fiber laser based on an Opto-very-large-scale-integration (Opto-VLSI) processor and four-wave mixing (FWM) in a high-nonlinear photonic crystal fiber is experimentally demonstrated. The results show that the line width of the tunable dual-wavelength fiber laser is 0.02 nm, and the wavelength spacing can be tuned from 0.8 nm to 4 nm with a 0.15 nm step. Under the influence of the FWM, the uniformity is below 0.6 dB and the measured side mode suppression ratio (SMSR) is above 45 dB.

► A stable wavelength and wavelength spacing tunable dual-wavelength fiber laser is demonstrated. ► The tunable dual-wavelength fiber laser is based on an Opto-VLSI processor and PCF. ► The line width of the laser is 0.02 nm, and the wavelength spacing can be tuned with a 0.15 nm step. ► The uniformity is below 0.6 dB and the measured side mode suppression ratio (SMSR) is above 45 dB.