Invention Grant
- Patent Title: Method, system and apparatus for hybrid optical and electrical pumping of semiconductor lasers and LEDs for improved reliability at high temperatures
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Application No.: US14135108Application Date: 2013-12-19
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Publication No.: US09728936B2Publication Date: 2017-08-08
- Inventor: Duane Louderback
- Applicant: Zephyr Photonics Inc.
- Applicant Address: US NV Zephyr Cove
- Assignee: ZEPHYR PHOTONICS INC.
- Current Assignee: ZEPHYR PHOTONICS INC.
- Current Assignee Address: US NV Zephyr Cove
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Main IPC: H01S5/04
- IPC: H01S5/04 ; H04B10/50 ; H01S5/183 ; H01S5/00 ; H01S5/022 ; H01S5/062

Abstract:
A method, system and an apparatus for hybrid optical and electrical pumping of semiconductor lasers and light-emitting diodes (LEDs) improves reliability at high operating temperatures. The semiconductor laser or LED is biased via optical pumping and a relatively small electrical modulation current modulates the laser. At low modulation speeds, the modulation current is substantially lower than that required for biasing the laser or directly modulating it at high speeds. The lifetime of the laser is improved by substantially reducing the operating current, enabling laser lifetimes adequate for operation in many applications, such as deep-hole oil drilling and jet engine control, where operation is not currently possible.
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