Coherent light generators – Optical fiber laser
Patent
1995-03-21
1997-08-19
Bovernick, Rodney B.
Coherent light generators
Optical fiber laser
372 29, 372 96, 372108, 372102, 385 10, 385 37, H01S 310
Patent
active
056595590
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. A polarization maintaining fibre is used. The grating is formed in the guided-mode region of the optical fibre using photorefractive techniques. 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 is sufficient to stabilize 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 increased or decreased relative to the solitary diode laser operating characteristics depending on the distance of the grating from the diode laser.
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Rogers Grant
Ventrudo Brian F.
Bovernick Rodney B.
Carothers, Jr. W. Douglas
SDL Inc.
Song Yisun
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