Invention Grant
- Patent Title: Multi-stage erbium-doped fiber amplifier with a single programmable logic device control circuit and method of controlling thereof
- Patent Title (中): 具有单个可编程逻辑器件控制电路的多级掺铒光纤放大器及其控制方法
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Application No.: US12415805Application Date: 2009-03-31
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Publication No.: US08482850B2Publication Date: 2013-07-09
- Inventor: Phil Simmons
- Applicant: Phil Simmons
- Applicant Address: US MA Oxford
- Assignee: IPG Photonics Corporation
- Current Assignee: IPG Photonics Corporation
- Current Assignee Address: US MA Oxford
- Agent Yuri Kateshov; Timothy J. King
- Main IPC: H04B10/17
- IPC: H04B10/17 ; H01S3/02 ; H04B10/12
Abstract:
A control circuit for a fiber amplifier having a first stage pump and at least one second stage pump and method of controlling thereof is disclosed. The control circuit includes a control gate controlling a current through the first stage pump. A sensor for detecting a voltage across the first stage pump and providing a measured output of the voltage is provided. The control circuit further includes a control loop configured for selectively controlling the current through the control gate in accordance with the measured output and a set reference point is also provided.
Public/Granted literature
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