1.5 micron polarization independent semiconductor optical amplifier with 25 dB fiber to fiber gain
Abstract
Using a tapered in width square active waveguide and bulk InGaAsP/InP material, we demonstrate a polarization independent amplifier structure operating at 1550 nm with a reduced far-field divergence. Improvement of coupling efficiency enables us to achieve a 25 dB fiber to fiber gain together with 9 dBm fiber saturation output power for 150 mA bias current. A 200 ps gain recovery time allows fast gating or wavelength conversion.
- Publication:
-
IEEE Photonics Technology Letters
- Pub Date:
- February 1994
- DOI:
- 10.1109/68.275418
- Bibcode:
- 1994IPTL....6..170D
- Keywords:
-
- Amplification;
- Gratings (Spectra);
- Light Amplifiers;
- Molecular Beam Epitaxy;
- Optical Fibers;
- Optical Waveguides;
- Photolithography;
- Polarization;
- Polarized Light;
- Semiconductor Lasers;
- Semiconductors (Materials);
- Bias;
- Divergence;
- Far Fields;
- Optical Communication;
- Lasers and Masers