| 摘要 |
This invention provides compact, fixed-wavelength and tunable fiber-optic lasers comprising a gain medium (5), for example a semiconductor, half-cavity VCSEL, or an organic light emitting polymer, within a Fabry-Perot cavity wherein one of the mirrors forming the cavity is a mirror integral with a fiber (7), for example a mirror (3) (metallic or dielectric, for example) deposited at a fiber end, a reflective tap within an optical fiber, a fiber Bragg Grating (FBG) (15), or a fiber loop mirror (19). Semiconductor gain material can be bulk semiconductor material or comprise a semiconductor multiple quantum well region. The gain medium (5) itself is not confined to a fiber. The FP cavity of these lasers typically contains a thin active medium (2) ranging up to about 10 mu m in length, but more preferably about 1 to about 2 mu m in thickness. |
