IPC Subgroup
H01S 5/1 Construction or shape of the optical resonator
Introduced: January 2000
Last revised: January 2021
Full Title
Semiconductor lasers > Construction or shape of the optical resonator
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
5 direct subcodes
Child Classifications
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- H01S 5/11 Comprising a photonic bandgap structure
- H01S 5/12 the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
- H01S 5/14 External cavity lasers
- H01S 5/16 Window-type lasers, i.e. with a region of non-absorbing material between the active region and the reflecting surface
- H01S 5/18 Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities