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US 9,001,855 B1Granted
Methods and systems for reducing slow axis divergence in laser diodes
AssigneeScience Research Laboratory, Inc.
InventorsJonah H. Jacob, Henry M. Eppich, Geoffrey O. Campbell, Wenyang Sun
Life of this patent
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Abstract
A method, and systems to implement the method, for reducing slow axis divergence in a laser diode bar including tailoring a power deposition profile across the emitter so as to reduce thermal gradients, thereby resulting in a substantially (nearly) uniform temperature across the width of the emitter.
Claims21
A system for reducing slow axis divergence in a laser diode component, the system comprising:
- a thermal management component;
- and
- one or more pedestal structures;
- each pedestal structure comprising a base and two support members, each support member being disposed along a length of the base and extending away from the base, one support member being disposed at one end of the base and another support member being disposed at another end of the base, a distance from said one support member to said another support member being substantially equal to a width of the base;
- the two support members being disposed on and in thermal and electrical connection to the thermal management component;
- the base being disposed away from the thermal management component;
- the width of the base of each one pedestal structure being substantially equal to a width of each one emitter in the laser diode component;
- wherein the laser diode component has one or more emitters;
- said each one pedestal structure is configured to be disposed substantially under said each one emitter;
- materials of the one or more pedestal structures being selected such that an effective thermal connection is established between the one or more emitters and thermal management component;
- a height of said each support member in one pedestal structure being a distance from the thermal management component to the base in said one pedestal structure.
8 more elements
A method for reducing slow axis divergence in a laser diode component, the method comprising:
- placing one or more pedestal structures (“pedestals”) on a thermal management component;
- each pedestal structure comprising a base and two support members, each support member being disposed along a length of the base and extending away from the base, one support member being disposed at one end of the base and another support member being disposed at another end of the base, a distance from said one support member to said another support member being substantially equal to a width of the base;
- the two support members being disposed on and in thermal and electrical connection to the thermal management component;
- the base being disposed away from the thermal management component;
- the width of the base of each one pedestal structure being substantially equal to a width of each one emitter in the laser diode component;
- and
- placing the laser diode component such that emitters are disposed over the one or more pedestal structures.
4 more elements
Dependencies are inferred from the claim text.