The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2004
Filed:
Feb. 12, 2002
Emil S. Koteles, Ottawa, CA;
MetroPhotonics Inc., Ottawa, CA;
Abstract
The present invention relates to a semiconductor optical amplifier system integrated within a semiconductor waveguide structure. The semiconductor optical amplifier system comprises a first semiconductor optical amplifier having a first spectral response and a second semiconductor optical amplifier having a second other spectral response. The second semiconductor optical amplifier is coupled to the first semiconductor optical amplifier for optically receiving an amplified optical signal from the first semiconductor optical amplifier. The center wavelengths of the first and the second spectral response are selected such that an optical signal provided to the first semiconductor optical amplifier and amplified thereby and then provided to the second semiconductor optical amplifier and amplified thereby is amplified approximately a same amount across a band of wavelengths larger than the band of wavelengths across which the optical signal was amplified approximately consistently by the first semiconductor optical amplifier alone.