Compact Hybrid Master Oscillator Power Amplifier With 3.1-W CW Output Power at Wavelengths Around 1061 nm

Published in:
IEEE Photonics Technology Letters, vol. 16, no. 5, pp. 1268-1270, May 2004.
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Abstract:
A hybrid master oscillator power amplifier (MOPA) laser source has been realized by coupling a single-mode three-section distributed Bragg reflector (DBR) laser as master oscillator and a tapered power amplifier with a single lens only. A maximum continuous-wave optical output power of 3.1 W was achieved. The emission spectrum was completely determined by the DBR laser. Single longitudinal mode operation at a wavelength of λ = 1061 nm was maintained over the whole power range. Up to an output power of 1.8 W, the beam propagation factor M² was less than 1.6.

Index Terms:
Distributed Bragg reflector (DBR) laser, high-power hybrid laser, master oscillator power amplifier (MOPA), tapered amplifier.

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