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14xx nm DFB InGaAsP/InP pump lasers with 500 mW CW output power for WDM combining

By: Maiorov, M.; Roff, W.; Tsekoun, A.; Komissarov, A.; Menna, R.; Kudryashov, I.; Garbuzov, D.; Connolly, J.; Lunev, A.;

2002 / IEEE / 1-55752-701-6

Description

This item was taken from the IEEE Conference ' 14xx nm DFB InGaAsP/InP pump lasers with 500 mW CW output power for WDM combining ' In conclusion, we have demonstrated 14xx nm DFB pump InGaAsP/InP ridge waveguide lasers with a record CW chip power level of 500 mW and ex-fiber or module power of 300 mW. Narrow emission line with very weak current/temperature peak position dependence allows us to use conventional wavelength multiplexing techniques to combine output of DFB pumps with different wavelengths into one SM fiber. Outputs from two 14xx nm DFB lasers with wavelengths differing by 16 nm have been combined in one SM fiber with efficiencies close to 90%, thereby producing a total 14xx nm power level of 500 mW.