Superluminescent led with efficient coupling to optical...

Details Superluminescent led with efficient coupling to optical... Superluminescent led with efficient coupling to optical...

H - Electricity

01

S

345/50

H01S 3/02 (2006.01) G02B 6/42 (2006.01) H01L 33/00 (2006.01)

Patent

CA 1175131

SUPERLUMINESCENT LED WITH EFFICIENT COUPLING TO OPTICAL WAVEGUIDE Abstract of the Disclosure Optical power is coupled into an optical waveguide system such as an optical fiber with maximum efficiency by a superluminescent light-emitting diode having lateral confinement of the light in the junction plane. The waveguide developed in the light-emitting diode is constructed to have an effective numerical aperture equal to the numerical aperture of the optical waveguide, and the refractive index n, the length L and width D of the waveguide in the diode is constructed such that the parameter nD/2L is much less than the numerical aperture. As a result, the inverted population of electrons within the active region are utilized with maximum efficiency to develop rays that are coupled into, and can be guided by, the optical waveguide system.

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