Fibre-grating-stabilized diode laser

Details Fibre-grating-stabilized diode laser Fibre-grating-stabilized diode laser

1995-12-19

1998-02-03

Bovernick, Rodney B.

Coherent light generators

Optical fiber laser

372 29, 372 96, 372108, 372102, 385 10, 385 37, H01S 310

Patent

active

057152632

ABSTRACT:
A fibre Bragg grating is used to stabilize the intensity and frequency fluctuations of a diode laser. The diode laser is connected with an opto-mechanical apparatus to the fibre which contains the grating. The grating is formed in the guided-mode region of the optical fibre. The wavelength of maximum grating reflectivity is selected to lie near the maximum of the diode laser gain bandwidth. The magnitude and bandwidth of the grating reflectivity stabilizes the diode laser output without appreciably reducing the optical output power from the end of the fibre. The bandwidth of the optical spectrum of the diode laser is selected depending on the distance of the grating from the diode laser.

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