Vertical integration of dual wavelength index guided lasers

High-Temperature Long-Wavelength Vertical-Cavity Lasers

Simultaneous Dual-wavelength Generation from Vertical External-cavity Surface-emitting Semiconductor Lasers

We demonstrate dual-wavelength emission from optically pumped vertical-external-cavity surface-emitting lasers (VECSELs) with two different gain mirror designs. The first gain mirror design (S1) generated an optical output power of 0.39 W at λS = 984 nm and 0.30 W at λL = 1042 nm. A VECSEL using the second gain mirror design (S2) generated a maximum optical output power of 0.75 W at λS = 966 nm...

Epitaxy of GaAs-based long-wavelength vertical cavity lasers

Vertical cavity lasers (VCLs) are of great interest as low-cost, high-performance light sources for fiber-optic communication systems. They have a number of advantages over conventional edgeemitting lasers, including low power consumption, efficient fiber coupling and wafer scale manufacturing/testing. For high-speed data transmission over distances up to a few hundred meters, VCLs (or arrays o...

Gain-guided, index-antiguided fiber lasers

ecent experimental results [1,2] suggest that optical fiers having a negative index step from cladding to core, ombined with an adequately large gain coefficient in a arge-diameter core region, can provide robust single ransverse mode operation having very large mode area ithout requiring complex fiber structures or other mode iscrimination measures. This paper reviews the imporant mode propert...

Gain competition in dual wavelength quantum cascade lasers.

We investigated dual wavelength mid-infrared quantum cascade lasers based on heterogeneous cascades. We found that due to gain competition laser action tends to start in higher order lateral modes. The mid-infrared mode with the lower threshold current reduces population inversion for the second laser with the higher threshold current due to stimulated emission. We developed a rate equation mod...