Disclosed is an optical waveguide having a specific dopant distribution capable of reducing a deformation thereof and existence of residual stresses therein, thereby involving no birefrigence.

• 公开一种具有特殊的掺杂剂分布的光波导，所述掺杂剂分布能够减小光波导的变形并且减小其中存在的残留应力，从而避免双折射。