Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p204
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 586545–589409

5 kW, and having average or CW output 'power density' greater than 350 W/cm2;
c. Average or CW total output power exceeding 5 kW;
d. Peak pulsed 'power density' exceeding 2,500 W/cm2; or
                              Note: 6A005.d.1.d.1.d. does not apply to epitaxially‑fabricated monolithic devices.
e. Spatially coherent average or CW total output power, greater than 150 W;
6. A. 005. d. 1. d. 2. Wavelength greater than or equal to 1,400 nm but less than 1,900 nm, and having any of the following:
a. Average or CW total output power less than 250 W and average or CW output 'power density' greater than 150 W/cm2;
6. A. 005. d. 1. d. 2. b. Average or CW total output power equal to or exceeding 250 W but less than or equal to 500 W, and having average or CW output 'power density' greater than 50 W/cm2;
6. A. 005. d. 1. d. 2. c. Average or CW total output power exceeding 500 W;
d. Peak pulsed 'power density' exceeding 500 W/cm2; or
                              Note: 6A005.d.1.d.2.d. does not apply to epitaxially‑fabricated monolithic devices.
e. Spatially coherent average or CW total output power exceeding 15 W;
6. A. 005. d. 1. d. 3. Wavelength greater than or equal to 1,900 nm and having any of the following:
a. Average or CW output 'power density' greater than 50 W/cm2;
b. Average or CW output power greater than 10 W; or
c. Spatially coherent average or CW total output power exceeding 1.5 W; or
6. A. 005. d. 1. d. 4. At least one "laser" 'bar' specified by 6A005.d.1.c.;
 Technical Note:
                   For the purposes of 6A005.d.1.d., 'power density' means the total "laser" output power divided by the emitter surface area of the 'stacked array'.
6. A. 005. d. 1. e. Semiconductor "laser" 'stacked arrays', other than those specified by 6A005.d.1.d., having all of the following:
1. Specially designed or modified to be combined with other 'stacked arrays' to form a larger 'stacked array'; and
2. Integrated connections, common for both electronics and cooling;
                       Note 1: 'Stacked arrays', formed by combining semiconductor "laser" 'stacked arrays' specified by 6A005.d.1.e., that are not designed to be further combined or modified are specified by 6A005.d.1.d.
                       Note 2: 'Stacked arrays', formed by combining semiconductor "laser" 'stacked arrays' specified by 6A005.d.1.e., that are designed to be further combined or modified are specified by 6A005.d.1.e.
                       Note 3: 6A005.d.1.e. does not apply to modular assemblies of single 'bars' designed to be fabricated into end‑to‑end stacked linear arrays.
Technical Notes:
For the purposes of 6A00d.1.e.:
1. Semiconductor "lasers" are commonly called "laser" diodes.
2. A 'bar' (also called a semiconductor "laser" 'bar', a "laser" diode 'bar' or diode 'bar') consists of multiple semiconductor "lasers" in a one‑dimensional