Backscatter absorption for laser diodes

Details Backscatter absorption for laser diodes Backscatter absorption for laser diodes

1993-01-11

1994-05-24

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 11, 372 19, 372 97, 372 29, 372 98, H01S 310

Patent

active

053156030

ABSTRACT:
Whenever any laser is interfaced with any type of optics there is always backscatter back into the laser. For diode lasers this backscatter makes it emit chaotic radiation where the frequency spectrum is broad and contains many different frequencies. This means that the laser has limited use as a source of information transfer in fibers. This weakness can be overcome, by driving the laser with an external cavity filled with a Kerr material. The addition of a Kerr material in the external cavity suppresses the chaos, or coherence collapse. Thus the new apparatus of laser plus external cavity filled with a Kerr material increases the stability of the diode laser.

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