A distribution feedback GaAs homojunction injection laser
Abstract
The authors reported the first observation of distributed feedback lasing in a pulsed homojunction GaAs injection laser. Feedback was achieved via a third order grating structure which was ion machined in the top surface of the p-type layer. Laser action was observed at 8420 A and 8459 A corresponding to grating periodicities of 3548 A and 3572 A, respectively. Threshold current densities at 77K were observed to be as low as approximately 5700 A per sq cm.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1974
- Bibcode:
- 1974STIN...7520723S
- Keywords:
-
- Gallium Arsenide Lasers;
- Injection Lasers;
- Laser Applications;
- Semiconductor Junctions;
- Current Density;
- Feedback Control;
- Gratings (Spectra);
- Optical Equipment;
- Zinc;
- Lasers and Masers