Structure or shape of the semiconductor body to guide the optical wave

Introduced: January 2000

Full Title

Full titles differ between systems:

IPC:

Semiconductor lasers > Structure or shape of the semiconductor body to guide the optical wave

CPC:

Semiconductor lasers (superluminescent diodes H10H20/00) > Structure or shape of the semiconductor body to guide the optical wave

CPC subdivides this area 4x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2000.

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H01S 5/2004 +2 CPC CPC only CPC only
H01S 5/2036 CPC only CPC only
H01S 5/204 +1 CPC CPC only CPC only
H01S 5/205 CPC only CPC only
H01S 5/2054 +4 CPC CPC only CPC only
H01S 5/22 having a ridge or stripe structure since 2000 +4 CPC IPC+CPC Available in IPC and CPC
H01S 5/24 having a grooved structure, e.g. V-grooved since 2000 IPC+CPC Available in IPC and CPC