Technical Support Information (Laser)

UOS provides technical information to help customer's better understanding of the products.  You can access the principle of laser diode operation, symbol and technical word definition used in data sheet and in brocher, and caution for handling.
Also please refer to FAQ list.

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The part number of USHIO OPTO SEMICONDUCTORS (UOS) laser diode displays it by an abbreviated form.

For larger CAN packaged which diameter is 5.6mm or lager,
7~8 letters combination of numerical and alphabetical are laser marked on cap.

1st and 2nd columns: Product identification code
If code is one character, 1st line is 3 characters.

3rd column: Year code
The year code is the last number of the produced year.
(ex; “4" means the year 2014)

4th column: Month code
The month code is marked with alphabet character.
(see Table-1)

5th to 8th column: UOS internal management code

For smaller CAN packaged which diameter is 3.8mm,
6 letters combination of numerical and alphabetical are laser marked on cap.

1st column and 2nd column : Product identification code

3rd column: Year code
The year code is the last number of the produced year.
(ex; “4" means the year 2014)

4th column: Month code
The month code is marked with alphabet character.
(see Table-1)

5th to 6th column: UOS internal management code

table-1) Month code
table-1) Month code

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