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:
Jan. 07, 2003
Filed:
Mar. 03, 2000
Applicant:
Inventors:
Assignee:
National Science Council, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/28 ; H04B 1/012 ;
U.S. Cl.
CPC ...
G02B 6/28 ; H04B 1/012 ;
Abstract
The present invention discloses an encoder and a decoder that are tunable, controllable, and have low amount of energy loss during encoding or decoding. The encoder comprises a 2×2 EO coupler, and an optical recirculating loop (waveguide) which comprises a semiconductor optic amplifier. The decoder comprises a 2×2 EO coupler, an optical recirculating loop (waveguide) which comprises a semiconductor optic amplifier, a light detector, and a bit determining device. Thus, the structures of the encoder and the decoder are simple, and can be integrated on a photonic integrated circuit so that the reliability is increased and the cost of production decreased.