14XX nm pump lases for Raman and Er<formula><roman>3+</roman></formula> doped fiber amplifiers

A set of high power single mode InGaAsP/InP ridge waveguide laser diodes emitting in 1440 - 1500 nm range on peak wavelengths used for optical fiber pumping were developed and fabricated. Room temperature continuous wave output power of 300 mW was reached. Stable operation on fundamental optical mode with only 1&#176; increase of lateral far-field pattern FWHM was confirmed up to 180 mW output power.