Continuous-wave operation of single-transverse-mode 1310-nm VCSELs up to 115/spl deg/C

Long-wavelength vertical cavity surface emitting lasers (VCSELs) have thus far not provided substantial continuous-wave (CW) output power above 70/spl deg/C. We describe recent advances using a vertically integrated 850 nm optical pump with a 1310-nm VCSEL. Using this approach, the devices described demonstrate record high temperature performance. We show single-transverse mode CW operation from -40 to +115/spl deg/C, 0.5 mw optical power up to +85/spl deg/C, and excellent device uniformity.