Laser modulator

Details Laser modulator Laser modulator

1998-02-17

1999-06-29

Palmer, Phan

Optical waveguides

With optical coupler

385 1, 385 20, 385 27, 356345, 356350, 372 6, G02B 626, G02B 642

Patent

active

059179694

ABSTRACT:
An all-optical modulator for modulating the output power of a high-power optical pump source is disclosed. More particularly, with the optical modulator of the invention, the output power of a CW fiber laser is modulated by a low-power laser, such as a diode laser. The modulator comprises two optical couplers which are preferably wavelength-selective and interconnected by a nonlinear single mode optical fiber with a high Raman gain. A laser system comprising a high-power pump laser, a fast signal laser with a suitable modulation depth and the optical modulator of the invention can advantageously employed in materials processing and graphics arts printing applications.

REFERENCES:
patent: 4964131 (1990-10-01), Liu et al.
patent: 5231465 (1993-07-01), Huang et al.
patent: 5255274 (1993-10-01), Wysocki et al.

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