Wp. Yuen et al., MULTIPLE-WAVELENGTH VERTICAL-CAVITY SURFACE-EMITTING LASER ARRAYS WITH A RECORD WAVELENGTH SPAN, IEEE photonics technology letters, 8(1), 1996, pp. 4-6
Multiple-wavelength vertical-cavity surface-emitting laser (VCSEL) arr
ays are fabricated using a modified patterned-substrate growth techniq
ue in a molecular beam epitaxy (MBE) system. We achieved a large lasin
g wavelength span of 62.7 nm and highly uniform threshold currents wit
h an average of 2.16 +/- 0.81 mA. High repeatibility of wavelength spa
cing between 15 arrays with sharp wavelength shift rate 117.14 nm/mm i
s achieved.