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Zero frequency error locking of widely tunable lasers in high spectral efficiency systems using optical injection phase lock loops

By: Seeds, A.J.; Bayvel, P.; Mikhailov, V.; Silva, C.F.C.;

2002 / IEEE / 1-55752-701-6

Description

This item was taken from the IEEE Conference ' Zero frequency error locking of widely tunable lasers in high spectral efficiency systems using optical injection phase lock loops ' A method of locking widely tunable lasers with zero frequency error relative to supplied optical and microwave references despite lasers temperature variations was demonstrated. Locking was maintained when changing laser submount temperature from 18/spl deg/C to 23/spl deg/C, while channel spacing variations were kept under 1 Hz. Using a two OIPLL system, 10 Gbit/s transmission at 18 GHz channel spacing was achieved.