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Proceedings Paper

Modulation characteristics of short-cavity strained-layer lasers
Author(s): Luke F. Lester; Sean S. O'Keefe; William J. Schaff; Lester Fuess Eastman
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Paper Abstract

The low frequency response and damping behavior of four quantum well (4QW) graded-index separate confinement heterostructure (GRINSCH) and SCH strained-layer lasers are compared. The SCH laser is shown to be better in both respects due to a shorter carrier capture time into the quantum wells. A record 3-dB bandwidth of 28 GHz is reported for a 150 micrometers cavity length 4QW strained-layer SCH laser. The change in the differential gain, non-linear gain coefficient, and damping rate are studied as a function of the quantum well thickness and barrier height. It is found that decreasing the well thickness does not change the non-linear gain coefficient nor the differential gain appreciably in relatively deep wells. Shallower quantum wells, however, are observed to have lower differential gain and a higher damping rate.

Paper Details

Date Published: 3 September 1992
PDF: 9 pages
Proc. SPIE 1680, High-Speed Electronics and Optoelectronics, (3 September 1992); doi: 10.1117/12.137704
Show Author Affiliations
Luke F. Lester, Cornell Univ. (United States)
Sean S. O'Keefe, Cornell Univ. (United States)
William J. Schaff, Cornell Univ. (United States)
Lester Fuess Eastman, Cornell Univ. (United States)

Published in SPIE Proceedings Vol. 1680:
High-Speed Electronics and Optoelectronics

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