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:
Feb. 12, 2019
Filed:
Jun. 29, 2015
Hebei Hymax Optoelecttronics Inc., Hebei, CN;
Chao Liu, Beijing, CN;
Hebei Hymax Optoelectronics Inc., Zhangjiakou, CN;
Abstract
A packaging structure for a four-channel integrated tunable laser array chip () comprises a carrier (), a cryogenic refrigerator (), a lens assembly (), an isolator assembly (), a package (), a transition ring (), and a thermistor. The packaging structure for the four-channel integrated tunable laser array chip () can realize a flexible tuning upon an active coupling of optical paths and ensure a reasonable switching of optical paths between optical assemblies, thereby improving a coupling efficiency for the optical paths and increasing a transmission distance of a digital signal. Furthermore, a design of a radio frequency circuit ensures integrity of a transmitted signal and reduces loss during the transmission.