Sensitivity of Grating-Coupled Surface Emitters to Length-Induced Phase Variations

Amos Hardy, David Mehuys, Robert G. Waarts, David F. Welch, William Streifer

Research output: Contribution to journalArticlepeer-review


The longitudinal mode structure of a two-gain section, three-grating surface emitting laser is studied as a function of length-induced phase variations. It is found that several mode hops occur in the course of changing the length of one of the gain sections by one grating period. Although the number of mode hops can be reduced by optimizing the design, stable, single-mode laser operation appears to require control of the optical length of each gain and grating section to better than one wavelength.

Original languageEnglish
Pages (from-to)1467-1475
Number of pages9
JournalIEEE Journal of Quantum Electronics
Issue number9
StatePublished - Sep 1990
Externally publishedYes


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