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. 06, 2015
Filed:
Mar. 17, 2011
Zhaoyang HU, Westlake Village, CA (US);
Qing Xiao, Sichuan, CN;
Meiling LU, Sichuan, CN;
Yan Chen, Sichuan, CN;
Thomas Liljeberg, West Hills, CA (US);
Zhaoyang Hu, Westlake Village, CA (US);
Qing Xiao, Sichuan, CN;
Meiling Lu, Sichuan, CN;
Yan Chen, Sichuan, CN;
Thomas Liljeberg, West Hills, CA (US);
Source Photonics, Chatsworth, CA (US);
Abstract
The disclosure relates to a tunable 50 GHz and 100 GHz channel spacing DWDM transceiver, and methods of making and using the same. The transceiver comprises an electro-absorption modulation laser (EML), a system board configured to compare a preset wavelength with an actual emission wavelength of the EML, a microcontroller and one or more associated registers configured to communicate with the system board, a temperature controlling circuit configured to stabilize the actual emission wavelength of the EML; and a wavelength meter connected to the output of the EML and having an output connected to the system board. The system board may be configured to provide a feedback loop from the EML to the microcontroller. The transceiver, suitable for 50 GHz channel spacing standards, can be made from existing standard transceivers and can switch between 50 GHz and 100 GHz channel spacing modes.