Patent · US Active

Laser device

US8369372B1 · kind B1 · utility

0Cited by
1References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 21, 2012
Grant dateFeb 5, 2013
Priority date—
Expiry dateMar 21, 2032

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01S5/22
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A laser device includes a substrate, a lower cladding layer on the substrate, an active layer on the lower cladding layer, an upper cladding layer on the active layer, and a second order diffraction grating in a layer above the active layer and having dimensions of at least 100 μm by 100 μm. The second order diffraction grating diffracts and directs light generated in the active layer in a direction generally perpendicular to the longitudinal direction of the upper cladding layer. A laser device further includes a first reflective film on a first end face of a resonator, and a second reflective film on a second end face of the resonator, the second end face being located at the opposite end of the resonator to the first end face.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.