Laser element

Details Laser element Laser element

1994-04-07

1995-02-21

Scott, Jr., Leon

Coherent light generators

Particular resonant cavity

Distributed feedback

372102, 372 45, 372 26, H01S 308

Patent

active

053923111

ABSTRACT:
A laser element has a first periodic structure (i.e., a diffraction grating) provided along an optical waveguide, and optical feedback is performed by the first periodic structure. Structural factors, including at least one of the width, thickness and refractive index of the optical waveguide, the composition of the laser medium, or the period of the first periodic structure is continuously changed at least in part in the axial direction of a cavity In such a manner that the continuous change provides a periodic structure of second, third or higher order.

REFERENCES:
patent: 4701930 (1987-10-01), Akiba et al.
patent: 5088097 (1992-02-01), Ono et al.
patent: 5155736 (1992-10-01), Ono et al.
patent: 5325392 (1994-06-01), Tohmori et al.

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