Light-emitting device having injection-lockable unidirectional semiconductor ring laser monolithically integrated with master laser

摘要

A unidirectional semiconductor ring laser (USRL) section is monolithically integrated with a DFB or DBR master laser section on a semiconductor substrate of a light-emitting device to provide an injection locking mode of operation that can result in low-cost ultrafast (over 100 GHz) functional chip that will be easy to use in practice.