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, 2025
Filed:
Apr. 02, 2021
Infinera Corporation, San Jose, CA (US);
Ashish Bhardwaj, Fremont, CA (US);
Gloria E. Hoefler, San Jose, CA (US);
Infinera Corporation, San Jose, CA (US);
Abstract
Consistent with the present disclosure, an output of a seed laser is split by a series of first coupler stages and each split portion is provided to a respective laser in an array of secondary lasers to realized injection locking of the laser array. Undesired light output from the secondary laser array back to the seed laser is monitored and the phase of such light is adjusted so that such light is subject to destructive interference and its power is minimized. Accordingly, light output from the secondary laser array back to the seed laser does not degrade the performance of the seed laser. On the other hand, light intended for output from the secondary laser array is combined through a second series of coupler stages and monitored at each stage. The phase of the output of each laser in the array is controlled to equal or be aligned with one another such that laser array outputs constructively interfere with one another. As a result, the combined output power is maximized.