Abstract

The output of two grating-stabilized external-cavity diode lasers was injected into a semiconductor tapered amplifier in a master oscillator – power amplifier (MOPA) configuration. At a wavelength of 671 nm this configuration produced 210 mW of power in a diffraction-limited mode with two frequency components of narrow linewidth. The frequency difference δ was varied from 20 MHz to 12 GHz, while the power ratio of the two components was freely adjustable. For δ <2 GHz additional frequency sidebands appear in the output of the MOPA. This configuration is a flexible and simple high-power cw laser source for light with multiple narrow-linewidth frequency components.

© 1999 Optical Society of America

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