Wavelength-selectable laser device and apparatus and system including same

摘要: A wavelength-selectable laser device generally includes an array of emitters and a filtered external cavity for filtering light emitted from the reflecting different wavelengths back to each such that lasing occurs at emitters. Each emitter gain region emits across plurality including, example, channel in optical communication system. The may include dispersive element receives angles passes or reflects only associated with respective are reflected By selectively emitting one more emitters, be selected transmission.