DIFF Subgroup
H01S 5/22 having a ridge or stripe structure
Introduced: January 2000
Title
Titles differ between systems:
IPC: having a ridge or a stripe structure
CPC: having a ridge or stripe structure
Full Title
Full titles differ between systems:
IPC:
Semiconductor lasers > Structure or shape of the semiconductor body to guide the optical wave > having a ridge or a stripe structure
CPC:
Semiconductor lasers (superluminescent diodes H10H20/00) > Structure or shape of the semiconductor body to guide the optical wave > having a ridge or stripe structure
CPC subdivides this area 3x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
IPC defines codes here since 2000.
Child Classifications
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