Indium phosphide-based vertical-cavity surface-emitting laser
AssigneeAvalon Photonics AG
InventorsMichael Moser, Guilhem Almuneau
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Abstract
A vertical-cavity surface-emitting laser comprises one or more quantum well layers and one or more barrier layers to define an gain region, a first mirror means and a second mirror means, wherein the first and second mirror means define a resonator. Moreover, the vertical-cavity surface-emitting laser further comprises a first indium phosphide layer adjacent to the gain region and a second indium phosphide layer adjacent to the gain region to define a laser cavity.
Claims35
A vertical-cavity-surface-emitting laser comprising:
- a gain region;
- a first mirror and a second mirror, the first and second mirror defining a resonator;
- a first substantially undoped indium phosphide layer adjacent to said gain region;
- and
- a second substantially undoped indium phosphide layer adjacent to said gain region, wherein the first and second substantially undoped indium phosphide layers sandwich said gain region to define a laser cavity,
- wherein an optical thickness of the laser cavity in the longitudinal dimension is approximately (n+½) times λ, wherein n is an integer number and λ is the output wavelength of the vertical-cavity surface-emitting laser.
A vertical-cavity-surface-emitting laser comprising:
- a gain region;
- a first reflector and a second reflector, the first and second reflector defining a resonator;
- a first substantially undoped indium phosphide layer adjacent to said gain region;
- and
- a second substantially undoped indium phosphide layer adjacent to said gain region, wherein the first and second substantially undoped indium phosphide layers sandwich said gain region to define a laser cavity.
A vertical-cavity-surface-emitting laser comprising:
- a gain region;
- a first reflector and a second reflector, said first and second reflector defining a resonator;
- a first substantially undoped indium phosphide layer adjacent to said gain region, said first substantially undoped indium phosphide layer having a first refractive index;
- a second substantially undoped indium phosphide layer adjacent to said gain region, said second substantially undoped indium phosphide layer having a second refractive index wherein the first and second substantially undoped indium phosphide layers sandwich said gain region to define a laser cavity;
- and
- means, associated with said gain region, for centering a maximum intensity of an electric field within said gain region,
- whereby a stimulated emission rate is maximized.
Dependencies are inferred from the claim text.