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:
Jun. 11, 2024
Filed:
May. 07, 2019
Google Llc, Mountain View, CA (US);
Tao Zhang, Mountain View, CA (US);
Cedric Fung Lam, San Carlos, CA (US);
Xiangjun Zhao, Fremont, CA (US);
Shuang Yin, Sunnyvale, CA (US);
Liang Du, Santa Clara, CA (US);
Changhong Joy Jiang, Dublin, CA (US);
Adam Edwin Taylor Ward Barratt, Portland, OR (US);
Claudio Desanti, Mountain View, CA (US);
Muthu Nagarajan, Santa Clara, CA (US);
Google LLC, Mountain View, CA (US);
Abstract
A method () for tuning a tunable laser () includes delivering a bias current (I) to an anode of a distributed Bragg reflector (DBR) section diode (D) disposed on a shared substrate of the tunable laser and receiving a burst mode signal () indicative of a burst-on state or a burst-off state. When the burst mode signal is indicative of the burst-off state, the method includes offsetting the bias current at the anode of the DBR section diode by one of sourcing a push current with the bias current to the anode of the DBR section diode or sinking a pull current away from the bias current at the anode of the DBR section diode. When the burst mode signal is indicative of the burst-on state, the method also includes ceasing any offsetting of the bias current at the anode of the DBR section diode.