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oai:www.ideals.illinois.edu:2142/81281 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Stillman, Gregory E. Horton, Timothy Uel 2015-09-25T20:10:23Z 2015-09-25T20:10:23Z 10000-01-01 1998 1998 The study is organized as follows. First, double-heterostructure optical amplifier devices are characterized at 1.55 m m for AM modulation-frequency response up to 20 GHz, possibly for the first time. Experimental results include high-frequency effects due to facet reflectivity, as well as low-frequency effects attributed to the carrier-recombination lifetime. Second, a self-aligned processing scheme is developed for fabricating semiconductor lasers, optical amplifiers, and photodetectors in this material system; this scheme emphasizes fabrication simplicity and low contact resistance. In addition, strained-layer and lattice-matched epitaxial structures for optical amplifiers and lasers are developed and grown here, although with limited success. Third, epitaxial layer designs for monolithically integrated amplifiers/photodetectors are proposed and analyzed. Design emphasis is placed on efficient coupling of desired light from the optical amplifier to photodetector, minimization of optical feedback to the amplifier, and reducing the spontaneous emission coupled to the detector. Made available in DSpace on 2015-09-25T20:10:23Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9921695.pdf: 3533322 bytes, checksum: 1ee6a5286f7815e29592afdedd9831f9 (MD5) Previous issue date: 1998 Embargo set by: Seth Robbins for item 82562 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 64 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998. http://hdl.handle.net/2142/81281 (MiAaPQ)AAI9921695 eng Engineering, Electronics and Electrical Semiconductor Optical Preamplifiers for Use in High-Speed Integrated Photoreceivers at 1.3 Um and 1.55 Um text Electrical Engineering Electrical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.