公开(公告)号：US11437779B2

公开(公告)日：2022-09-06

申请号：US15570683

申请日：2016-04-27

申请人： Apple Inc.

发明人： Ross M. Audet ,  Mark Alan Arbore ,  Alfredo Bismuto ,  Yves Bidaux ,  Camille Tardy ,  Tobias Gresch ,  Antoine Jean André Müller

IPC分类号： H01S5/0625 ,  H01S5/125 ,  H01S5/12 ,  H01S5/06 ,  H01S5/0683 ,  H01S5/34

摘要： Disclosed is a Vernier effect DBR laser that has uniform laser injection current pumping along the length of the laser. The laser can include one or more tuning elements, separate from the laser injection element, and these tuning elements can be used to control the temperature or modal refractive index of one or more sections of the laser. The refractive indices of each diffraction grating can be directly controlled by temperature changes, electro optic effects, or other means through the one or more tuning elements. With direct control of the temperature and/or refractive indices of the diffraction gratings, the uniformly pumped Vernier effect DBR laser can be capable of a wider tuning range. Additionally, uniform pumping of the laser through a single electrode can reduce or eliminate interfacial reflections caused by, for example, gaps between metal contacts atop the laser ridge, which can minimize multi-mode operation and mode hopping.