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Proceedings Paper

Beam divergence angle distribution dependence on data pattern
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Paper Abstract

Data patterns are shown to affect the far field distribution of vertical cavity surface emitting lasers (VCSELs). Two data patterns with different frequency content resulted in different beam profile distributions even though both patterns had 50% duty cycles resulting in the same thermal dissipation. The effect of gain switching and varying high and low drive levels was also investigated. Angle dependent waveforms displayed overshoot on axis and undershoot off axis. The potential impact of pattern dependent launch conditions is discussed.

Paper Details

Date Published: 16 June 2004
PDF: 8 pages
Proc. SPIE 5364, Vertical-Cavity Surface-Emitting Lasers VIII, (16 June 2004); doi: 10.1117/12.532272
Show Author Affiliations
Sulaiman S. Al-Sowayan, Colorado State Univ. (United States)
Kevin L. Lear, Colorado State Univ. (United States)


Published in SPIE Proceedings Vol. 5364:
Vertical-Cavity Surface-Emitting Lasers VIII
Chun Lei; Kent D. Choquette; Sean P. Kilcoyne, Editor(s)

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