Method and system for providing directional light sources with broad spectrum
First Claim
Patent Images
1. An optical device comprising:
- a gallium and nitrogen containing substrate including a first crystalline surface region orientation, the first crystalline surface region orientation being nonpolar or semi-polar;
an active region comprising at least one quantum well and at least one barrier layer; and
a first cavity member overlaying the active region, the cavity having a length of at least 100 um, a width of at least 0.5 um, and being configured to emit laser light with a spectral width of at least 0.5 nm; and
an RF source electrically coupled to the active region for providing RF modulation, the RF modulation being configured to induce spectral broadening and increase the spectral width to at least 1.5 nm.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for providing laser diodes with broad spectrum is described. GaN-based laser diodes with broad or multi-peaked spectral output operating are obtained in various configurations by having a single laser diode device generating multiple-peak spectral outputs, operate in superluminescene mode, or by use of an RF source and/or a feedback signal. In some other embodiments, multi-peak outputs are achieved by having multiple laser devices output different lasers at different wavelengths.
-
Citations
20 Claims
-
1. An optical device comprising:
-
a gallium and nitrogen containing substrate including a first crystalline surface region orientation, the first crystalline surface region orientation being nonpolar or semi-polar; an active region comprising at least one quantum well and at least one barrier layer; and a first cavity member overlaying the active region, the cavity having a length of at least 100 um, a width of at least 0.5 um, and being configured to emit laser light with a spectral width of at least 0.5 nm; and an RF source electrically coupled to the active region for providing RF modulation, the RF modulation being configured to induce spectral broadening and increase the spectral width to at least 1.5 nm. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An optical device comprising:
-
a gallium and nitrogen containing substrate including a first crystalline surface region orientation; an active region comprising at least one quantum well and at least one barrier layer; a first cavity member overlaying the active region, the cavity having a length of at least 100 um, a width of at least 0.5 um, and being configured to emit laser light with a spectral width of at least 0.5 nm; and an RF source electrically coupled to the active region for providing RF modulation, the RF modulation being configured to induce spectral broadening and increase the spectral width to at least 1.5 nm. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for operating an optical device comprising:
-
providing a laser device comprising a gallium and nitrogen containing substrate including a first crystalline surface region orientation, an active region comprising at least one quantum well and at least one barrier layer; and
a first cavity member overlaying the active region, the cavity having a length of at least 100 um, a width of at least 0.5 um, and being configured to emit laser light with a spectral width of at least 0.5 nm; andinducing spectral broadening using an RF source electrically coupled to the active region for providing RF modulation, the RF modulation being configured to induce the spectral broadening and increase the spectral width to at least 1.5 nm. - View Dependent Claims (20)
-
Specification