Sh. Cho et al., 1.9-W QUASI-CW FROM A NEAR-DIFFRACTION-LIMITED 1.55-MU-M INGAASP-INP TAPERED LASER, IEEE photonics technology letters, 10(8), 1998, pp. 1091-1093
1.9-W quasi-CW output power with about 80% of the power in the central
lobe is obtained from a 1.55-mu m wavelength InGaAsP-InP MQW tapered
unstable resonator laser. This power is found to be emitted in a near-
diffraction-limited beam.