60 nm Widely Tunable Three Section Slot Laser

This paper presents a tunable single mode Dual-mirror Slotted Fabry Pérot (DSFP) laser with near 60 nm tuning of the wavelengths between 1530 nm to 1590 nm. The laser modes measured demonstrate high SMSR lasing exceeding 30 dB with SMSRs as high as 45 dB. The electrical tuning of the laser facilitates more than 20 nm of continuous 50 GHz channel spacing between 1545 nm and 1565 nm. Additional thermal tuning facilitates more than 40 nm of continuous 50 GHz channel spacing between 1540 nm and 1580 nm.