Abstract
Narrow beat-note linewidths as low as 190 kHz have been obtained by optically heterodyning two vertical-cavity surface-emitting lasers (VCSEL's) whose linewidths are minimized by optical feedback. Narrow line operation has been achieved stably at frequencies up to a detector limited value of 25 GHz for both free space and fiber-loop arrangements.
| Original language | English |
|---|---|
| Pages (from-to) | 405-408 |
| Number of pages | 4 |
| Journal | IEEE Journal on Selected Topics in Quantum Electronics |
| Volume | 3 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Apr 1997 |
Funding
Manuscript received December 6, 1996; revised April 7, 1997. This work was supported by the U.K. EPSRC. P. Dowd and I. H. White are with the Department of Electrical and Electronic Engineering, University of Bristol, Bristol BS8 1TR, U.K. M. R. T. Tan and S. Y. Wang are with Hewlett Packard Laboratories, Palo Alto, CA 94303 USA. Publisher Item Identifier S 1077-260X(97)05140-X.
Keywords
- Fiber-loop mirror
- Laser linewidth
- Millimeter-wave generation
- Optical heterodyning
- Surface-emitting lasers
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering