Stripe offset geometry in injection lasers to achieve transverse mode control
US4251780A · kind A · utility
39Cited by
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22Claims
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Key dates
| Filing date | Jul 3, 1978 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Jul 3, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An injection laser of the multilayer planar type, such as, heterostructure GaAs:GaAlAs lasers are provided with offset geometry in the configuration of the stripe on surface of the device to stabilize the propagating optical beam such that the power output versus current pumping characteristic is linear over an extended range of operating currents. Many types of stripe offset geometries are disclosed which contribute in various degrees to such transverse mode stabilization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.