Laser Diode Example
(1) First generate a laser source in a project as shown in Fig 1
Fig 1 : generate a source
(2) Edit the source and choose the Replace a Piece option in the Menu Items pull down menu, then click Go
(3) In the Source Properties Editor choose Create custom pattern
In order to simulate a laser beam, users can generate a custom pattern from this option.
(4) In the Source Properties Editor choose Mix-And-Match
For most commercially available laser diodes, the electrical field in the x direction is Gaussian shaped and it’s an exponential shape in the y direction. Hence once the data of Full Width Half Maximum (FWHM) of the spot in x and y direction are entered, this program will automatically generate a custom pattern. In most laser diode specifications, only Full Width Half Maximum(FWHM) (unit degree) of the laser in far field for x and y directions are provided. Hence the Laser Diode Calculator in this menu is provided to calculate FWHM in spot size.
(5) Click Laser Diode Calculator
There is already a list of catalog numbers for laser diode in this menu. For a new laser, you can click New Laser and build your own data base.
For a commercial laser, X FWHM(unit degree) and Y FWHM(unit degree) in far field are provided. Hence X spot FWHM and Y spot FWHM are calculated. For detailed information see Laser Diode Calculator
Type the calculation results of X spot FWHM and Y spot FWHM in Source Property Editor and then click Next
(6) click next into the next step
(7) click next into the next step
(8) click Finish into the next step
You can click Browse and save this source as a matrix using the name you want.
(9)A custom pattern of laser diode is generated
