Semiconductor optical amplifier and integrated laser source info

Details Semiconductor optical amplifier and integrated laser source info Semiconductor optical amplifier and integrated laser source info

1998-11-09

2000-10-24

Hellner, Mark

Optical: systems and elements

Optical amplifier

Particular active medium

385 50, 372 50, H01S 3063

Patent

active

061376256

ABSTRACT:
To avoid the phenomena of self-focusing and astigmatism of the amplified wave, the amplifier includes in succession: an input segment having an input waveguide adapted to guide a monomode input wave; a diffraction segment comprising a first medium transparent to said monomode input wave and adapted to widen it; a collimation segment; and an amplification segment having an amplifier waveguide wider than said input waveguide. The amplifier can provide a high-power laser source supplying a widened fundamental mode wave. Application to producing waves for pumping fiber optic amplifiers.

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patent: 5539571 (1996-07-01), Welch et al.
patent: 5864574 (1999-01-01), Welch et al.
J. Verdiell et al, "A WDM Receiver Photonic Integrated Circuit with Net on-Chip Gain", IEEE Photonics Technology Letters, vol. 6, No. 8, Aug. 1, 1994, pp. 960-962.
K-Y Liou et al, "High-Power Broad-Area Tapered Amplifier with a Monolithically Integrated Output Focusing Lens at 0.98-um Wavelength", IEEE Journal of Selected Topics in Quantum Electronics, vol. 1, No. 2, Jun. 1, 199, pp. 165-172.
J. P. Donnelly et al, High-Power 1.3-Mum INGAASP-INP Amplifiers with Tapered gain Regions, IEEE Photonics Technology Letters, vol. 8, No. 11, Nov. 1996, pp. 1450-1452.

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