[IEEE LEOS 1992 Summer Topical Meeting Digest on Broadband Analog and Digital Optoelectronics, Optical Multiple Access Networks, Integrated Optoelectronics, and Smart Pixels - Newport, RI, USA (21-24 April 1992)] LEOS 1992 Summer Topical Meeting Digest on Broadband Analog and Digital Optoelectronics, Optical Multiple Access Networks, Integrated Optoelectronics, and Smart Pixels - F/sub max/-enhancement in CBE-grown InAlAs/InGaAs HEMT's using novel self-aligned offset-gate technology