Construction or shape of active medium

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range > Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium > Construction or shape of active medium

CPC:

Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range (semiconductors lasers H01S5/00) > Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium > Construction or shape of active medium

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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H01S 3/0602 +7 CPC CPC only CPC only
H01S 3/0619 +2 CPC CPC only CPC only
H01S 3/0627 CPC only CPC only
H01S 3/063 Waveguide lasers, since 2000 +1 CPC IPC+CPC Available in IPC and CPC
H01S 3/07 consisting of a plurality of parts, e.g. segments (H01S3/067 takes precedence) since 1974 +1 CPC IPC+CPC Available in IPC and CPC