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:
Apr. 01, 2014
Filed:
Nov. 15, 2010
Asmahanim Bte Ahmad, Selangor Darul Ehsan, MY;
Mohamed Razman Bin Yahya, Bandar Baru Bangi, MY;
Syamsuri Bin Yaakob, Kuala Lumpur, MY;
Mohd Adzir Mahdi, Selangor Darul Ehsan, MY;
Romli Mohamad, Selangor Darul Ehsan, MY;
Abdullah Bin Man, Selangor Darul Ehsan, MY;
Muhammad Zamsuri Bin Abdul Kadir, Selangor Darul Ehsan, MY;
Yu Gang Shee, Selangor Darul Ehsan, MY;
Asmahanim bte Ahmad, Selangor Darul Ehsan, MY;
Mohamed Razman bin Yahya, Bandar Baru Bangi, MY;
Syamsuri bin Yaakob, Kuala Lumpur, MY;
Mohd Adzir Mahdi, Selangor Darul Ehsan, MY;
Romli Mohamad, Selangor Darul Ehsan, MY;
Abdullah bin Man, Selangor Darul Ehsan, MY;
Muhammad Zamsuri bin Abdul Kadir, Selangor Darul Ehsan, MY;
Yu Gang Shee, Selangor Darul Ehsan, MY;
Telekom Malaysia Berhad, Kuala Lumpur, MY;
Abstract
A system () for generating a millimeter wave signals from heterodyning wavelengths from a multi-wavelength signal generated by a Brillouin-Erbium fiber laser (). The Brillouin-Erbium fiber laser () includes a source laser () that transmits a seed signal. An optical directional coupler () has a first input that receives the seed signal from the source laser and a first output. An Erbium doped fiber amplifier () has an input connected to the first output of the optical directional coupler and an output. The Erbium doped fiber amplifier amplifies the seed signal. A four port circulator () has a first port that receives the seed signal from the Erbium doped fiber amplifier. A Brillouin gain medium () is connected to a second port and a third port of the circulator. The seed signal propagates through the Brillouin gain medium in a first direction and a first order Stokes signal propagates through the Brillouin gain medium in a second direction to generate a second order Stokes signal propagating in the first direction. A fourth port of the circulator is connected to a second input of the optical directional coupler. The optical directional coupler receives the signal from the fourth port of the circulator and outputs a portion of the signal to a first output and a second portion to a second output of the optical directional coupler. Two wavelengths from the second output are then received by a photodiode () that heterodynes the signal to generate a millimeter wave signal.